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rv10free2fly(at)yahoo.com
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 Posted: Sun May 11, 2014 3:51 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
[quote][b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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along(at)aanet.com.au
Guest
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| Posted: Sun May 11, 2014 4:45 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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Hi Patrick,
Yes, I have the purge valve. Not flying yet.... about 4 weeks away,
however, check out my web site and give me a call or drop me an email to
discuss.
--
Regards,
Andrew Long
www.ozrv10.com
| Quote: | Are there any builders out there who have fitted the Airflow Performance
purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable
to prevent actuation of the purge valve in flight, such as the A-750
VERNIER CONTROL cable sold by Aircraft Spruce:
http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
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| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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jdriggs49(at)msn.com
Guest
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| Posted: Sun May 11, 2014 6:04 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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I'm using just a regular cable like you can buy from an auto parts store. I will eventually change it out to a locking type cable. Vernier is really not necessary but locking is because the vibrations cause the cable to pull out and eventually shut down the engine if you don't keep pushing the knob in.
Subject: RV10-List: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com
Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: [url=http://www.aircraftspruce.com/catalog/appages/a750.php]http://www.aircraftspruce.com/catalog/appages/a750.php[/url]
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
[quote]
ist" target=_blank>http://www.matronics.com/Navigator?RV10-List
ank>http://forums.matronics.com
rget=_blank>http://www.matronics.com/contribution
[b]
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Dick Sipp
Joined: 11 Jan 2006
Posts: 215
Location: Hope, MI
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| Posted: Sun May 11, 2014 6:23 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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I put spring on the purge valve to hold it open in the event the control cable failed.
Dick Sipp
550hours
Sent from my iPad
On May 11, 2014, at 10:04 AM, Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)> wrote:
[quote] I'm using just a regular cable like you can buy from an auto parts store. I will eventually change it out to a locking type cable. Vernier is really not necessary but locking is because the vibrations cause the cable to pull out and eventually shut down the engine if you don't keep pushing the knob in.
Subject: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au (rv10free2fly(at)yahoo.com.au)
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
| Quote: |
ist" target=_blank>http://www.matronics.com/Navigator?RV10-List
ank>http://forums.matronics.com
rget=_blank>http://www.matronics.com/contribution
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List"">http://www.matronics.com/Navigator?RV10-List
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ot;">http://www.matronics.com/contribution
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[b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Sun May 11, 2014 6:50 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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1. Depends, too many variables for a standard length cable. For example, where are you mounting the control, where does it penetrate the firewall. I have an Aerosport Products panel and have mine mounted on the lower console by my right knee. Then it goes through the firewall in the recess area with all the throttle quadrant controls, then penetrates the baffle between the oil cooler scant tube and the center of the engine block. Then it crosses the engine block to the purge valve. I suspect no two installations are the same. You may have to adjust clocking depending on your exact route of the cable. I used weed whacker line to determine the length that I needed.
2/3. I used this McFarlene control cable. I wanted a locking control. You don't want the cable moving in flight. (http://www.aircraftspruce.com/catalog/appages/controlsMC6150a.php). I ordered the cable directly from McFarlene. It was about the same price price as ACS, but they will do custom engraving.
Bob
Sent from my iPad
On May 11, 2014, at 7:50 AM, Patrick Pulis <rv10free2fly(at)yahoo.com.au (rv10free2fly(at)yahoo.com.au)> wrote:
[quote]Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
| Quote: |
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
List"">http://www.matronics.com/Navigator?RV10-List
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
//forums.matronics.com
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ot;">http://www.matronics.com/contribution
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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[b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler |
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partner14
Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas
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| Posted: Sun May 11, 2014 6:54 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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Just an FYI.... I may be totally off base here.... but for a lot of things I believe in the KISS principal. I did not install the purge valve because several RV guys I talked to had installed it but never needed to use it, and I have never had any problems starting my engine,,,, hot or cold.
So if anybody needs a valve, got one here really cheap.
Don McDonald
From: Danny Riggs <jdriggs49(at)msn.com>
To: rv10-list(at)matronics.com
Sent: Sunday, May 11, 2014 9:04 AM
Subject: RE: Airflow Performance Purge Valve Fitted to RV-10
I'm using just a regular cable like you can buy from an auto parts store. I will eventually change it out to a locking type cable. Vernier is really not necessary but locking is because the vibrations cause the cable to pull out and eventually shut down the engine if you don't keep pushing the knob in.
Subject: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com
Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: [url=]http://www.aircraftspruce.com/catalog/appages/a750.php[/url]
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
[quote]
ist" target=_blank>http://www.matronics.com/Navigator?RV10-List
ank>http://forums.matronics.com
rget=_blank>http://www.matronics.com/contribution
http://www.matrolow" target="_blank" href="http://forums.matronics.com/">http://forums.= --> [b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
_________________
Don A. McDonald
40636 |
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carl.froehlich(at)verizon
Guest
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| Posted: Sun May 11, 2014 8:32 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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I did the same on the 8A. The purge valve itself has a spring but I added another to make sure. Photo attached. As someone else has pointed out you can easily get by without a purge valve. In 11 years I used this perhaps half a dozen times for hot day, hot start situation. It does work. The return is plumbed to the left tank so when purging you select the left tank for fuel. The purge valve is also used for each engine shutdown. This ports the pressurized fuel in the spider to the tank to reduce the amount left to gravity drain.
Standard cables like these work well: http://www.aircraftspruce.com/categories/aircraft_parts/ap/menus/ap/controls_00carb.html
Or: http://vansaircraft.com/cgi-bin/store.cgi?ident=1399824452-324-42&browse=controls&product=bowden
On the photo note that this was the first two years or so of flying – before the multiple hard LightSpeed ignition failures. The LightSpeeds are long gone and the plane is doing just fine at 400 hours on dual p-Mags. I’m still holding my breath (like many) for Brad to ship the 6 cylinder p-Mags for the RV-10.
Carl
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Dick Sipp
Sent: Sunday, May 11, 2014 10:23 AM
To: rv10-list(at)matronics.com
Subject: Re: Airflow Performance Purge Valve Fitted to RV-10
I put spring on the purge valve to hold it open in the event the control cable failed.
Dick Sipp
550hours
Sent from my iPad
On May 11, 2014, at 10:04 AM, Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)> wrote:
| Quote: |
I'm using just a regular cable like you can buy from an auto parts store. I will eventually change it out to a locking type cable. Vernier is really not necessary but locking is because the vibrations cause the cable to pull out and eventually shut down the engine if you don't keep pushing the knob in.
Subject: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au (rv10free2fly(at)yahoo.com.au)
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
012345
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678901234567890123
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Jim Berry
Joined: 10 Jan 2006
Posts: 237
Location: Denver
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| Posted: Sun May 11, 2014 10:11 am Post subject: Re: Airflow Performance Purge Valve Fitted to RV-10 |
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I started out with the same setup that Carl shows in his photo i.e. simple wire push-pull cable and B nut, plus return spring. In talking with Don Rivera at Airflow Performance, he made it clear he was not a fan of that arrangement, since failure has the potential to shut down the engine. He prefers a more robust push-pull cable with threaded ends and a clevis fitting in place of the B nut.
Jim Berry
RV-10
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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Bajajim
Joined: 21 Aug 2012
Posts: 30
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| Posted: Sun May 11, 2014 10:16 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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Don,
I am having a hell of a time starting my IO540 on a Hot Start, no problem when it is cold.
What is your secret?
Please advise..
Jim Villani
Kit# 41084
Jim(at)JimVillani.com
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Don McDonald
Sent: Sunday, May 11, 2014 7:53 AM
To: rv10-list(at)matronics.com
Subject: Re: Airflow Performance Purge Valve Fitted to RV-10
Just an FYI.... I may be totally off base here.... but for a lot of things I believe in the KISS principal. I did not install the purge valve because several RV guys I talked to had installed it but never needed to use it, and I have never had any problems starting my engine,,,, hot or cold.
So if anybody needs a valve, got one here really cheap.
Don McDonald
From: Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)>
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Sent: Sunday, May 11, 2014 9:04 AM
Subject: RE: Airflow Performance Purge Valve Fitted to RV-10
I'm using just a regular cable like you can buy from an auto parts store. I will eventually change it out to a locking type cable. Vernier is really not necessary but locking is because the vibrations cause the cable to pull out and eventually shut down the engine if you don't keep pushing the knob in.
Subject: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au (rv10free2fly(at)yahoo.com.au)
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
0123456789012345
[quote][b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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Kellym
Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
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| Posted: Sun May 11, 2014 11:58 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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If it is anything like the IO-360 Lycoming I have in my Mooney, the
trick is to bring engine to 1000 rpm for shutdown and pull mixture.
Then, for startup, don't touch anything, do not use boost pump. Just
crank. If it doesn't fire within about 6 revolutions, begin to slowly
ease the mixture in and it will fire somewhere around 50% mixture. Don't
crank beyond 10 seconds. If it doesn't fire, stop cranking. Reasses. Add
a hair to throttle and try again with mixture at cutoff through 5-6
revolutions then begin adding mixture.
Last resort, prime it like cold start to flood it, go full throttle,
lock brakes and mixture idel cutoff. Crank til fires and immediately
reduce throttle while adding mixture.
On 5/11/2014 11:16 AM, JimVillani wrote:
| Quote: |
Don,
I am having a hell of a time starting my IO540 on a Hot Start, no
problem when it is cold.
What is your secret?
Please advise..
*Jim Villani*
Kit# 41084
Jim(at)JimVillani.com
*From:*owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Don McDonald
*Sent:* Sunday, May 11, 2014 7:53 AM
*To:* rv10-list(at)matronics.com
*Subject:* Re: Airflow Performance Purge Valve Fitted to RV-10
Just an FYI.... I may be totally off base here.... but for a lot of
things I believe in the KISS principal. I did not install the purge
valve because several RV guys I talked to had installed it but never
needed to use it, and I have never had any problems starting my
engine,,,, hot or cold.
So if anybody needs a valve, got one here really cheap.
Don McDonald
------------------------------------------------------------------------
*From:*Danny Riggs <jdriggs49(at)msn.com <mailto:jdriggs49(at)msn.com>>
*To:* rv10-list(at)matronics.com <mailto:rv10-list(at)matronics.com>
*Sent:* Sunday, May 11, 2014 9:04 AM
*Subject:* RE: Airflow Performance Purge Valve Fitted to RV-10
I'm using just a regular cable like you can buy from an auto parts
store. I will eventually change it out to a locking type cable.
Vernier is really not necessary but locking is because the vibrations
cause the cable to pull out and eventually shut down the engine if you
don't keep pushing the knob in.
------------------------------------------------------------------------
Subject: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au <mailto:rv10free2fly(at)yahoo.com.au>
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com <mailto:rv10-list(at)matronics.com>
Are there any builders out there who have fitted the Airflow
Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the
cable to prevent actuation of the purge valve in flight, such as
the A-750 VERNIER CONTROL cable sold by Aircraft Spruce:
http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
* *
* *
*ist" target=_blank>http://www.matronics.com/Navigator?RV10-List*
*ank>http://forums.matronics.com*
*rget=_blank>http://www.matronics.com/contribution*
* *
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davidsoutpost(at)comcast.
Guest
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| Posted: Sun May 11, 2014 2:14 pm Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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|
I was taught the same procedure Kelly describes and it has worked flawlessly on my IO-540 RV-10. A friend of mine also does the same with his IO-360 Cozy MKIV and has almost 400 hours doing hot starts this way When I did my RV-10 transition training in TX with Alex, he did hot starts using boost pump to flood engine, full throttle and idle mixture cut-off, rapidly pulling throttle and pushing in mixture when engine fires. I don't care for that method. Only 23 hours so far but plenty of hot starts for me and she always fires up very smoothly by the third blade. So far I have not even considered installing a purge valve. It adds expense, time to install, weight, and complexity.
David Clifford
RV-10
N959RV: Phase 1
From: "Kelly McMullen" <kellym(at)aviating.com>
To: rv10-list(at)matronics.com
Sent: Sunday, May 11, 2014 3:57:43 PM
Subject: Re: RV10-List: Airflow Performance Purge Valve Fitted to RV-10
--> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com>
If it is anything like the IO-360 Lycoming I have in my Mooney, the
trick is to bring engine to 1000 rpm for shutdown and pull mixture.
Then, for startup, don't touch anything, do not use boost pump. Just
crank. If it doesn't fire within about 6 revolutions, begin to slowly
ease the mixture in and it will fire somewhere around 50% mixture. Don't
crank beyond 10 seconds. If it doesn't fire, stop cranking. Reasses. Add
a hair to throttle and try again with mixture at cutoff through 5-6
revolutions then begin adding mixture.
Last resort, prime it like cold start to flood it, go full throttle,
lock brakes and mixture idel cutoff. Crank til fires and immediately
reduce throttle while adding mixture.
On 5/11/2014 11:16 AM, JimVillani wrote:
| Quote: |
Don,
I am having a hell of a time starting my IO540 on a Hot Start, no
problem when it is cold.
What is your secret?
Please advise..
*Jim Villani*
Kit# 41084
Jim(at)JimVillani.com
*From:*owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Don McDonald
*Sent:* Sunday, May 11, 2014 7:53 AM
*To:* rv10-list(at)matronics.com
*Subject:* Re: Airflow Performance Purge Valve Fitted to RV-10
Just an FYI.... I may be totally off base here.... but for a lot of
things I believe in the KISS principal. I did not install the purge
valve because several RV guys I talked to had installed it but never
needed to use it, and I have never had any problems starting my
engine,,,, hot or cold.
So if anybody needs a valve, got one here really cheap.
Don McDonald
------------------------------------------------------------------------
*From:*Danny Riggs <jdriggs49(at)msn.com <mailto:jdriggs49(at)msn.com>>
*To:* rv10-list(at)matronics.com <mailto:rv10-list(at)matronics.com>
*Sent:* Sunday, May 11, 2014 9:04 AM
*Subject:* RE: Airflow Performance Purge Valve Fitted to RV-10
I'm using just a regular cable like you can buy from an auto parts
store. I will eventually change it out to a locking type cable.
Vernier is really not necessary but locking is because the vibrations
cause the cable to pull out and eventually shut down the engine if you
don't keep pushing the knob in.
------------------------------------------------------------------------
Subject: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au <mailto:rv10free2fly(at)yahoo.com.au>
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com <mailto:rv10-list(at)matronics.com>
Are there any builders out there who have fitted the Airflow
Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the
cable to prevent actuation of the purge valve in flight, such as
the A-750 VERNIER CONTROL cable sold by Aircraft Spruce:
http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
* *
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[quote][b]
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bobw
Joined: 31 Mar 2014
Posts: 8
Location: Marquette, MI
|
| Posted: Sun May 11, 2014 2:34 pm Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
|
|
Don – The basic problem with hot starts is the vaporization of fuel in the lines to and from the spider or distribution block. I have not had experience with the IO-540 but the same problem existed in the IO-470’s of which I had two in a Cessna 310. In that case it was mixture at idle cut off throttle at mid-point and hit the primer (the boost pump with a momentary switch) for about 10 seconds. The fuel would circulate and eliminate the vapor. With the mixture at ICO and the throttle cracked hit the starter and when it fired mixture rich. Having one hand on the starter and the other on the mixture was a good idea.
But the basic problem is the vaporization of fuel in the lines due to the heat of the engine. A method to do that without flooding the engine and your good to go. If it makes you feel any better it is not an uncommon problem with all fuel injected engines but it’s more prevalent in the bigger one (6 cylinder).
Bob Wilson
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of JimVillani
Sent: Sunday, May 11, 2014 2:16 PM
To: rv10-list(at)matronics.com
Subject: RE: Airflow Performance Purge Valve Fitted to RV-10
Don,
I am having a hell of a time starting my IO540 on a Hot Start, no problem when it is cold.
What is your secret?
Please advise..
Jim Villani
Kit# 41084
Jim(at)JimVillani.com (Jim(at)JimVillani.com)
From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] On Behalf Of Don McDonald
Sent: Sunday, May 11, 2014 7:53 AM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Re: Airflow Performance Purge Valve Fitted to RV-10
Just an FYI.... I may be totally off base here.... but for a lot of things I believe in the KISS principal. I did not install the purge valve because several RV guys I talked to had installed it but never needed to use it, and I have never had any problems starting my engine,,,, hot or cold.
So if anybody needs a valve, got one here really cheap.
Don McDonald
From: Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)>
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Sent: Sunday, May 11, 2014 9:04 AM
Subject: RE: Airflow Performance Purge Valve Fitted to RV-10
I'm using just a regular cable like you can buy from an auto parts store. I will eventually change it out to a locking type cable. Vernier is really not necessary but locking is because the vibrations cause the cable to pull out and eventually shut down the engine if you don't keep pushing the knob in.
Subject: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au (rv10free2fly(at)yahoo.com.au)
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
0
1 2 ====[/u][/b][/quote] sp; - The RV10-List Email Forum -[/u][/b][/quote] ics List Features Navigator to browse[/u][/b][/quote] utilities such as List Un/Subscription,[/u][/b][/quote] & Download, 7-Day Browse, Chat, FAQ,[/u][/b][/quote] d much much more:[/u][/b][/quote] an>[/u][/b][/quote] > http://www.matronics.com/Navigator?RV10-List[/u][/b][/quote] an>[/u][/b][/quote] ====[/u][/b][/quote] sp; - MATRONICS WEB FORUMS -[/u][/b][/quote] tent also available via the Web Forums![/u][/b][/quote] an>[/u][/b][/quote] > http://forums.matronics.com[/u][/b][/quote] an>[/u][/b][/quote] ====[/u][/b][/quote] sp; - List Contribution Web Site -[/u][/b][/quote] u for your generous support![/u][/b][/quote] sp; -Matt Dralle, List Admin.[/u][/b][/quote] > http://www.matronics.com/contribution[/u][/b][/quote] ====[/u][/b] [/quote]3
[quote][b]
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Bob Wilson
bob@rjw.cc |
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partner14
Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas
|
| Posted: Sun May 11, 2014 2:36 pm Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
|
|
Jim, there are quite a few different techniques, but here's what works for me. Cold start; crack throttle, mixture 1/2, hit boost pump for about 3 seconds, then start.... since I have a light MT prop and an engine with higher compression, and the ability to leave ignition off when I start cranking the engine....then after a couple of turns, I turn on the ignition... totally eliminates any kickback or backfire.
Hot start; very similiar, except after hitting the boost pump for it's 3 seconds, I pull the mixture back to cuttoff, then hit the starter.... when it catches, ease the mixture back to 1/2.
If you find that it catches and then dies, try using the boost pump slightly longer.
Don
Let me know how it works.
BTW, what procedure are you currently using?
From: JimVillani <Jim(at)jimvillani.com>
To: rv10-list(at)matronics.com
Sent: Sunday, May 11, 2014 1:16 PM
Subject: RE: Airflow Performance Purge Valve Fitted to RV-10
Don,
I am having a hell of a time starting my IO540 on a Hot Start, no problem when it is cold.
What is your secret?
Please advise..
Jim Villani
Kit# 41084
Jim(at)JimVillani.com
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Don McDonald
Sent: Sunday, May 11, 2014 7:53 AM
To: rv10-list(at)matronics.com
Subject: Re: Airflow Performance Purge Valve Fitted to RV-10
Just an FYI.... I may be totally off base here.... but for a lot of things I believe in the KISS principal. I did not install the purge valve because several RV guys I talked to had installed it but never needed to use it, and I have never had any problems starting my engine,,,, hot or cold.
So if anybody needs a valve, got one here really cheap.
Don McDonald
From: Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)>
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Sent: Sunday, May 11, 2014 9:04 AM
Subject: RE: Airflow Performance Purge Valve Fitted to RV-10
I'm using just a regular cable like you can buy from an auto parts store. I will eventually change it out to a locking type cable. Vernier is really not necessary but locking is because the vibrations cause the cable to pull out and eventually shut down the engine if you don't keep pushing the knob in.
Subject: RV10-List: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au (rv10free2fly(at)yahoo.com.au)
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
012 | Quote: | | [url=http://www.matro========%3c/font%3e%3c/b%3e%3c/pre%3e%3c/div%3e%3c/div%3e%3cbr%3e%3cbr%3e%3c/div%3e%20%3c/div%3e%20%3c/div%3e%20%20%3c/div%3e%3cpre%3e%3cb%3e%3cfont%20size=2%20color=000000] |
34567890123
[b] 4[/b][/b]
[quote][b]
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Don A. McDonald
40636 |
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partner14
Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas
|
| Posted: Sun May 11, 2014 2:36 pm Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
|
|
All that sounds scary Kelly.
From: Kelly McMullen <kellym(at)aviating.com>
To: rv10-list(at)matronics.com
Sent: Sunday, May 11, 2014 2:57 PM
Subject: Re: Airflow Performance Purge Valve Fitted to RV-10
--> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>
If it is anything like the IO-360 Lycoming I have in my Mooney, the
trick is to bring engine to 1000 rpm for shutdown and pull mixture.
Then, for startup, don't touch anything, do not use boost pump. Just
crank. If it doesn't fire within about 6 revolutions, begin to slowly
ease the mixture in and it will fire somewhere around 50% mixture. Don't
crank beyond 10 seconds. If it doesn't fire, stop cranking. Reasses. Add
a hair to throttle and try again with mixture at cutoff through 5-6
revolutions then begin adding mixture.
Last resort, prime it like cold start to flood it, go full throttle,
lock brakes and mixture idel cutoff. Crank til fires and immediately
reduce throttle while adding mixture.
On 5/11/2014 11:16 AM, JimVillani wrote:
| Quote: |
Don,
I am having a hell of a time starting my IO540 on a Hot Start, no
problem when it is cold.
What is your secret?
Please advise..
*Jim Villani*
Kit# 41084
Jim(at)JimVillani.com (Jim(at)JimVillani.com)
*From:*owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)
[mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] *On Behalf Of *Don McDonald
*Sent:* Sunday, May 11, 2014 7:53 AM
*To:* rv10-list(at)matronics.com (rv10-list(at)matronics.com)
*Subject:* Re: RV10-List: Airflow Performance Purge Valve Fitted to RV-10
Just an FYI.... I may be totally off base here.... but for a lot of
things I believe in the KISS principal. I did not install the purge
valve because several RV guys I talked to had installed it but never
needed to use it, and I have never had any problems starting my
engine,,,, hot or cold.
So if anybody needs a valve, got one here really cheap.
Don McDonald
------------------------------------------------------------------------
*From:*Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com) <mailto:jdriggs49(at)msn.com (jdriggs49(at)msn.com)>>
*To:* rv10-list(at)matronics.com (rv10-list(at)matronics.com) <mailto:rv10-list(at)matronics.com (rv10-list(at)matronics.com)>
*Sent:* Sunday, May 11, 2014 9:04 AM
*Subject:* RE: Airflow Performance Purge Valve Fitted to RV-10
I'm using just a regular cable like you can buy from an auto parts
store. I will eventually change it out to a locking type cable.
Vernier is really not necessary but locking is because the vibrations
cause the cable to pull out and eventually shut down the engine if you
don't keep pushing the knob in.
------------------------------------------------------------------------
Subject: Airflow Performance Purge Valve Fitted to RV-10
From: rv10free2fly(at)yahoo.com.au (rv10free2fly(at)yahoo.com.au) <mailto:rv10free2fly(at)yahoo.com.au (rv10free2fly(at)yahoo.com.au)>
Date: Sun, 11 May 2014 21:20:40 +0930
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com) <mailto:rv10-list(at)matronics.com (rv10-list(at)matronics.com)>
Are there any builders out there who have fitted the Airflow
Performance purge valve to their RV-10, who could please indicate:
1. the approximate length of the cable used;
2. the supplier of the cable; and
3. if they used a cable with some form of locking mechanism on the
cable to prevent actuation of the purge valve in flight, such as
the A-750 VERNIER CONTROL cable sold by Aircraft Spruce:
http://www.aircraftspruce.com/catalog/appages/a750.php
Please let me know if this is suitable?
Warm regards
Patrick Pulis
Adelaide, South Australia
RV-10 Serial No. 40299
* *
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*ist" target=_blank>[url=http://www.matronics.com/Navigator?RV10-List*]http://www.matronics.com/Navigator?RV10-List*[/url]
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[quote][b]
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Don A. McDonald
40636 |
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Kelly McMullen
Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ
|
| Posted: Sun May 11, 2014 6:34 pm Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
|
|
Be aware that Continental fuel injection is COMPLETELY different than Bendix or AFM fuel injection, and technique used with it is completely different. Continental injection has a continuous return line, which allows purging every line up to the fuel servo by recirculating fuel from the tank. It also requires management of which tank fuel is burned from to make room for the return fuel.
The flooded start method I described I consider a last resort, and should not be used routinely. 1st, having the engine fire up to near full power has safety concerns and is hard on the prop and the engine. 2nd, excess fuel in the cylinder washes oil of the cylinder wall, accelerating wear.
On Sun, May 11, 2014 at 3:34 PM, Bob Wilson <bob(at)rjw.cc (bob(at)rjw.cc)> wrote:
[quote]
Don – The basic problem with hot starts is the vaporization of fuel in the lines to and from the spider or distribution block. I have not had experience with the IO-540 but the same problem existed in the IO-470’s of which I had two in a Cessna 310. In that case it was mixture at idle cut off throttle at mid-point and hit the primer (the boost pump with a momentary switch) for about 10 seconds. The fuel would circulate and eliminate the vapor.
Subject: RE: Airflow Performance Purge Valve Fitted to RV-10
[u][/u]
[b]
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Kelly McMullen
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Mauledriver(at)nc.rr.com
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| Posted: Mon May 12, 2014 6:42 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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On 5/11/2014 2:16 PM, JimVillani wrote:
| Quote: | v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} <![endif]--> <![endif]--> <![endif]-->
Don,
I am having a hell of a time starting my IO540 on a Hot Start, no problem when it is cold.
What is your secret?
Please advise..
|
I'm coming up on 500 hours with a stock Vans-sourced engine. Here's my cold and hot start procedure. Works without fail unless I have a brain fart and do something else (it happens).
Cold Start: Crack the throttle (1/4" on quadrant), boost pump on, open mixture for 5 seconds (or more) and close mixture. Crank until it fires and smoothly open mixture. If it doesn't fire after 1 or 2 prop turns, stop cranking, open mixture for a couple more seconds, close and crank. Can't remember having to ever repeat that again. (Rather than the 5 seconds, watching the fuel flow meter while the mixture is open is more effective. Just open until the fuel flow goes up and then stabilizes. Then close and start. No 2nd tries required when following this method).
Hot Start: Crack throttle, boost pump on, crank. Can takes 3 or 4 turns until it starts to fire, roughly. Smoothly open mixture.
All movements are smooth. I only open mixture to the position slightly richer than I use for taxi, then once started, I lean it to my normal taxi setting (and LOP setting).
If the throttle isn't cracked, neither method results in a start. I don't touch throttle until it starts, then I simply try to keep it around 1000rpms
I do a fair number of hot starts - landing at home and filling up before taxi to hangar (definite hot start). Or, taxi to fill-up before taking off (not sure that qualifies but I use the hot start procedure). My home base is in Durham NC, so the ambient temps can be sky high.
I'm not sure exactly who gave me these instructions. Might have been in the Van's doc but whatever... I've never been able to figure out what the big deal is with hot starts. This is my first fuel injected engine.
Bill
[quote][b]
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Kellym
Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
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| Posted: Mon May 12, 2014 6:51 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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You would get similar results, but smoother start if you left the boost
pump off.
The mixture in the cylinder during a hot start is more often rich than
not, because of fuel being boiled out of line from flow divider to nozzle.
The mechanical pump brings up the system fuel pressure within a couple
revolutions. If you simply shut down with throttle at 1000 rpm, and
leave it alone, it will be just right for the subsequent hot start.
Just my experience flying a Bendix fuel injected Mooney in AZ for over
15 yrs.
On 5/12/2014 7:41 AM, Bill Watson wrote:
| Quote: | On 5/11/2014 2:16 PM, JimVillani wrote:
>
> Don,
>
> I am having a hell of a time starting my IO540 on a Hot Start, no
> problem when it is cold.
>
> What is your secret?
>
> Please advise..
I'm coming up on 500 hours with a stock Vans-sourced engine. Here's my
cold and hot start procedure. Works without fail unless I have a
brain fart and do something else (it happens).
Cold Start: Crack the throttle (1/4" on quadrant), boost pump on, open
mixture for 5 seconds (or more) and close mixture. Crank until it
fires and smoothly open mixture. If it doesn't fire after 1 or 2 prop
turns, stop cranking, open mixture for a couple more seconds, close
and crank. Can't remember having to ever repeat that again. (Rather
than the 5 seconds, watching the fuel flow meter while the mixture is
open is more effective. Just open until the fuel flow goes up and
then stabilizes. Then close and start. No 2nd tries required when
following this method).
Hot Start: Crack throttle, boost pump on, crank. Can takes 3 or 4
turns until it starts to fire, roughly. Smoothly open mixture.
All movements are smooth. I only open mixture to the position
slightly richer than I use for taxi, then once started, I lean it to
my normal taxi setting (and LOP setting).
If the throttle isn't cracked, neither method results in a start. I
don't touch throttle until it starts, then I simply try to keep it
around 1000rpms
I do a fair number of hot starts - landing at home and filling up
before taxi to hangar (definite hot start). Or, taxi to fill-up
before taking off (not sure that qualifies but I use the hot start
procedure). My home base is in Durham NC, so the ambient temps can be
sky high.
I'm not sure exactly who gave me these instructions. Might have been
in the Van's doc but whatever... I've never been able to figure out
what the big deal is with hot starts. This is my first fuel injected
engine.
Bill
*
*
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Kelly McMullen
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Mauledriver(at)nc.rr.com
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| Posted: Mon May 12, 2014 6:59 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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I don't have the Airflow product and don't have a purge valve. I do have a cable supplier recommendation.
California Push-Pull - Chico CA http://www.push-pull.com/
I ordered replacement cables for the Van's supplied cables (quadrant version). The Van's cables were all about an inch shorter than optimal for my plane. After 200 hours or so, each of the 3 cables had started to chafe or melt in various places.
I ordered Cablecraft replacements with the option of higher temp materials. I ordered three custom lengths - the 176-VTT-2-72 (72 inch) was $68.42. The shorter ones were less. Construction exactly matched Vans supplied cables but with higher temp plastics.
Custom fabrication and shipment were apparently same day. Vernier and lock fittings seem to be options. Don't attempt to order from Web site, just call. They know cables but don't necessarily talk aircraft.
If I were ordering any cables, this is where I'm going for price, service, and quality. I love ACS.
On 5/11/2014 7:50 AM, Patrick Pulis wrote:
[quote] Are there any builders out there who have fitted the Airflow Performance purge valve to their RV-10, who could please indicate:
1. Â the approximate length of the cable used;
2. Â the supplier of the cable; and
3.  if they used a cable with some form of locking mechanism on the cable to prevent actuation of the purge valve in flight, such as the A-750 VERNIER CONTROL cable sold by Aircraft Spruce: http://www.aircraftspruce.com/catalog/appages/a750.php
[b]
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bobw
Joined: 31 Mar 2014
Posts: 8
Location: Marquette, MI
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| Posted: Mon May 12, 2014 6:59 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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Kelly, You are absolutely correct. You had to burn an hour out of the mains (Tip tanks) before going to the a x tanks. Each engine returned fuel to its respective main. But the point is the fuel vaporization in the lines is the root cause of the problem. I’m looking at building an RV-10 so this “hot start” issue is of interest.
The other problem with an over primed engine is a stack fire. I had that happen in a Cessna 180 which was fortunately contained but could have gotten out of hand. If the engine starts it’s a non-event but if it doesn’t --- things can sometimes get nasty. I’m just looking for a safe but effective solution as I know that will be a problem for me At KSAW you have to taxi to the fuel pumps then re-start and taxi to the hangar area so for me it will be an issue. You can get a truck to fuel you but it’s $.30 more per gallon
Bob Wilson
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Kelly McMullen
Sent: Sunday, May 11, 2014 10:33 PM
To: rv10-list(at)matronics.com
Subject: Re: Airflow Performance Purge Valve Fitted to RV-10
Be aware that Continental fuel injection is COMPLETELY different than Bendix or AFM fuel injection, and technique used with it is completely different. Continental injection has a continuous return line, which allows purging every line up to the fuel servo by recirculating fuel from the tank. It also requires management of which tank fuel is burned from to make room for the return fuel.
The flooded start method I described I consider a last resort, and should not be used routinely. 1st, having the engine fire up to near full power has safety concerns and is hard on the prop and the engine. 2nd, excess fuel in the cylinder washes oil of the cylinder wall, accelerating wear.
On Sun, May 11, 2014 at 3:34 PM, Bob Wilson <bob(at)rjw.cc (bob(at)rjw.cc)> wrote:
Don – The basic problem with hot starts is the vaporization of fuel in the lines to and from the spider or distribution block. I have not had experience with the IO-540 but the same problem existed in the IO-470’s of which I had two in a Cessna 310. In that case it was mixture at idle cut off throttle at mid-point and hit the primer (the boost pump with a momentary switch) for about 10 seconds. The fuel would circulate and eliminate the vapor.
Subject: RE: Airflow Performance Purge Valve Fitted to RV-10
==============[/b][/quote] V10-List Email Forum -[/b][/quote] >[/b][/quote] :p>[/b][/quote] /o:p>[/b][/quote] tor?RV10-List">http://www.matronics.com/Navigator?RV10-List[/b][/quote] ==============[/b][/quote] bsp; - MATRONICS WEB FORUMS -[/b][/quote] :p>[/b][/quote] tp://forums.matronics.com[/b][/quote] ==============[/b][/quote] bsp; - List Contribution Web Site -[/b][/quote] e> bsp; -Matt Dralle, List Admin.[/b][/quote] bution">http://www.matronics.com/contribution[/b][/quote] ==============[/b] [b]
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partner14
Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas
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| Posted: Mon May 12, 2014 8:03 am Post subject: Airflow Performance Purge Valve Fitted to RV-10 |
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Kind of off topic, but Kim and I are flying to Salina KS this Thurs to meeet up with a group on an auto rally. Then the next day we are flying down to Sundance Airpark outside OKC. Anybody located on or around these 2 airports?
Don Mc
From: Bill Watson <Mauledriver(at)nc.rr.com>
To: rv10-list(at)matronics.com
Sent: Monday, May 12, 2014 9:41 AM
Subject: Re: Airflow Performance Purge Valve Fitted to RV-10
On 5/11/2014 2:16 PM, JimVillani wrote:
| Quote: | Don,
I am having a hell of a time starting my IO540 on a Hot Start, no problem when it is cold.
What is your secret?
Please advise..
|
I'm coming up on 500 hours with a stock Vans-sourced engine. Here's my cold and hot start procedure. Works without fail unless I have a brain fart and do something else (it happens).
Cold Start: Crack the throttle (1/4" on quadrant), boost pump on, open mixture for 5 seconds (or more) and close mixture. Crank until it fires and smoothly open mixture. If it doesn't fire after 1 or 2 prop turns, stop cranking, open mixture for a couple more seconds, close and crank. Can't remember having to ever repeat that again. (Rather than the 5 seconds, watching the fuel flow meter while the mixture is open is more effective. Just open until the fuel flow goes up and then stabilizes. Then close and start. No 2nd tries required when following this method).
Hot Start: Crack throttle, boost pump on, crank. Can takes 3 or 4 turns until it starts to fire, roughly. Smoothly open mixture.
All movements are smooth. I only open mixture to the position slightly richer than I use for taxi, then once started, I lean it to my normal taxi setting (and LOP setting).
If the throttle isn't cracked, neither method results in a start. I don't touch throttle until it starts, then I simply try to keep it around 1000rpms
I do a fair number of hot starts - landing at home and filling up before taxi to hangar (definite hot start). Or, taxi to fill-up before taking off (not sure that qualifies but I use the hot start procedure). My home base is in Durham NC, so the ambient temps can be sky high.
I'm not sure exactly who gave me these instructions. Might have been in the Van's doc but whatever... I've never been able to figure out what the big deal is with hot starts. This is my first fuel injected engine.
Bill
[quote]
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.========================
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