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asperanz(at)yahoo.com
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 Posted: Mon Mar 29, 2010 6:33 pm Post subject: RV-List Digest: 5 Msgs - 03/28/10 |
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I've been struggling with high cylinder head temperatures for 2+ years..I have tried everything. Stock RV cowling & exhaust installation: TMX-O360 180hp with Carb, Lightspeed & slick mag. I can see CHT's in 430F range or much higher if I did NOT manage power. Mixture & timing correct. Openned up intake & exhaust areas. Resealed w/silicone material (replaced black stuff) - tight fit. Plugged all the little holes w/red RTV. Sealed & recontoured in-let ramps. Spark plugs the coolest offered...I am measureing with Dynon FlightDek 180 and all TCs match exactly & agree with ambient temperature (0 to 100 F). Everyone that looks at it says "looks good, shold cool OK?". I am running out of ideas and would appreciate any feedback or ideas. Thanks...Tony
--- On Mon, 3/29/10, RV-List Digest Server <rv-list(at)matronics.com> wrote:
[quote]
From: RV-List Digest Server <rv-list(at)matronics.com>
Subject: RV-List Digest: 5 Msgs - 03/28/10
To: "RV-List Digest List" <rv-list-digest(at)matronics.com>
Date: Monday, March 29, 2010, 2:59 AM
*
=========================
Online Versions of Today's List Digest Archive
=========================
Today's complete RV-List Digest can also be found in either of the
two Web Links listed below. The .html file includes the Digest formatted
in HTML for viewing with a web browser and features Hyperlinked Indexes
and Message Navigation. The .txt file includes the plain ASCII version
of the RV-List Digest and can be viewed with a generic text editor
such as Notepad or with a web browser.
HTML Version:
http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter=2010-03-28&Archive=RV
Text Version:
http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter=2010-03-28&Archive=RV
=======================
EMail Version of Today's List Digest Archive
=======================
----------------------------------------------------------
RV-List Digest Archive
---
Total Messages Posted Sun 03/28/10: 5
----------------------------------------------------------
Today's Message Index:
----------------------
1. 09:25 AM - Sealing Around Engine Baffles... (Matt Dralle)
2. 12:00 PM - Re: Sealing Around Engine Baffles... (Rick Galati)
3. 12:24 PM - Re: Re: Sealing Around Engine Baffles... (Bruce Gray)
4. 12:25 PM - Re: Sealing Around Engine Baffles... (RV6 Flyer)
5. 07:20 PM - Re: Re: Sealing Around Engine Baffles... (David Cudney)
________________________________ Message 1 _____________________________________
Time: 09:25:41 AM PST US
From: Matt Dralle <dralle(at)matronics.com (dralle(at)matronics.com)>
Subject: Sealing Around Engine Baffles...
Dear Listers,
Regarding the requirement for sealing compound (silicon?) around the baffle-to-engine
areas, what is the recommendation here? Is sealant absolutely necessary?
Adding a compound is going to really ugly-up the installation. 
If it is an absolute requirement, what are some suggestions on material to use?
About all I could find on ACS was this:
http://www.aircraftspruce.com/catalog/mepages/rtv.php
At least it comes in Black to match my engine... 
Feedback would be most appreciated.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com Matt's Construction Blog
Moved to hanger, wings attached permanently....
________________________________ Message 2 _____________________________________
Time: 12:00:36 PM PST US
From: Rick Galati <rick6a(at)yahoo.com (rick6a(at)yahoo.com)>
Subject: RE: Sealing Around Engine Baffles...
I used-red (high temp) RTV to fill all the nooks and crannies.- In serv
ice for several years, its hold is as tenacious as ever.
-
[IMG]http://i40.tinypic.com/2dkeu69.jpg[/IMG]
________________________________ Message 3 _____________________________________
Time: 12:24:57 PM PST US
From: "Bruce Gray" <bgray(at)glasair.org (bgray(at)glasair.org)>
Subject: RE: RE: Sealing Around Engine Baffles...
I'd fly the airplane first to see if I had any cylinder temp problems.
If I did then I would go with the RTV.
Bruce
www.Glasair.org
--
| | - The Matronics RV-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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Larry Bowen
Joined: 09 Jan 2006
Posts: 802
Location: NC, USA
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| Posted: Mon Mar 29, 2010 7:09 pm Post subject: RV-List Digest: 5 Msgs - 03/28/10 |
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I had a similar setup and similar temps. Never really found a 'cure', I just managed it. Do you stay WOT during the climb? Have you looked into rejetting the carb? --
Larry Bowen
Larry(at)BowenAero.com
http://BowenAero.com
On Tue, Mar 30, 2010 at 3:31 AM, Tony Speranza <asperanz(at)yahoo.com (asperanz(at)yahoo.com)> wrote:
[quote]
I've been struggling with high cylinder head temperatures for 2+ years...I have tried everything. Stock RV cowling & exhaust installation: TMX-O360 180hp with Carb, Lightspeed & slick mag. I can see CHT's in 430F range or much higher if I did NOT manage power. Mixture & timing correct. Openned up intake & exhaust areas. Resealed w/silicone material (replaced black stuff) - tight fit. Plugged all the little holes w/red RTV. Sealed & recontoured in-let ramps. Spark plugs the coolest offered...I am measureing with Dynon FlightDek 180 and all TCs match exactly & agree with ambient temperature (0 to 100 F). Everyone that looks at it says "looks good, shold cool OK?". I am running out of ideas and would appreciate any feedback or ideas. Thanks...Tony
--- On Mon, 3/29/10, RV-List Digest Server <rv-list(at)matronics.com (rv-list(at)matronics.com)> wrote:
[quote]
From: RV-List Digest Server <rv-list(at)matronics.com (rv-list(at)matronics.com)>
Subject: RV-List Digest: 5 Msgs - 03/28/10
To: "RV-List Digest List" <rv-list-digest(at)matronics.com (rv-list-digest(at)matronics.com)>
Date: Monday, March 29, 2010, 2:59 AM
*
=========================
Online Versions of Today's List Digest Archive
=========================
Today's complete RV-List Digest can also be found in either of the
two Web Links listed below. The .html file includes the Digest formatted
in HTML for viewing with a web browser and features Hyperlinked Indexes
and Message Navigation. The .txt file includes the plain ASCII version
of the RV-List Digest and can be viewed with a generic text editor
such as Notepad or with a web browser.
HTML Version:
http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter=2010-03-28&Archive=RV
Text Version:
http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter=2010-03-28&Archive=RV
=======================
EMail Version of Today's List Digest Archive
=======================
----------------------------------------------------------
RV-List Digest Archive
---
Total Messages Posted Sun 03/28/10: 5
----------------------------------------------------------
Today's Message Index:
----------------------
1. 09:25 AM - Sealing Around Engine Baffles... (Matt Dralle)
2. 12:00 PM - Re: Sealing Around Engine Baffles... (Rick Galati)
3. 12:24 PM - Re: Re: Sealing Around Engine Baffles... (Bruce Gray)
4. 12:25 PM - Re: Sealing Around Engine Baffles... (RV6 Flyer)
5. 07:20 PM - Re: Re: Sealing Around Engine Baffles... (David Cudney)
________________________________ Message 1 _____________________________________
Time: 09:25:41 AM PST US
From: Matt Dralle <dralle(at)matronics.com>
Subject: Sealing Around Engine Baffles...
Dear Listers,
Regarding the requirement for sealing compound (silicon?) around the baffle-to-engine
areas, what is the recommendation here? Is sealant absolutely necessary?
Adding a compound is going to really ugly-up the installation.
If it is an absolute requirement, what are some suggestions on material to use?
About all I could find on ACS was this:
http://www.aircraftspruce.com/catalog/mepages/rtv.php
At least it comes in Black to match my engine...
Feedback would be most appreciated.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com Matt's Construction Blog
Moved to hanger, wings attached permanently....
________________________________ Message 2 _____________________________________
Time: 12:00:36 PM PST US
From: Rick Galati <rick6a(at)yahoo.com>
Subject: RE: Sealing Around Engine Baffles...
I used-red (high temp) RTV to fill all the nooks and crannies.- In serv
ice for several years, its hold is as tenacious as ever.
-
[IMG]http://i40.tinypic.com/2dkeu69.jpg[/IMG]
________________________________ Message 3 _____________________________________
Time: 12:24:57 PM PST US
From: "Bruce Gray" <bgray(at)glasair.org>
Subject: RE: RE: Sealing Around Engine Baffles...
I'd fly the airplane first to see if I had any cylinder temp problems.
If I did then I would go with the RTV.
Bruce
www.Glasair.org
--
| | - The Matronics RV-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?RV-List |
|
_________________
Larry Bowen
RV-8 SOLD,
RV-7QB in progress... |
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yenduc(at)me.com
Guest
|
| Posted: Mon Mar 29, 2010 11:21 pm Post subject: RV-List Digest: 5 Msgs - 03/28/10 |
|
|
After you have sealed as much as you can --If you still have a cooling problem you, might consider louvers. Particularly if you have yet to paint the plane. I was worried about cooling with my io 360 so I built in louvers when I built my plane. It runs almost too cool -- I have to block about 80% of the oil cooler in the winter in SoCAL. No problem with heat even on hot, summer days at gross weight and climbing.
good luck
dave
[img]cid:983F8972-C238-40ED-93E4-5B3FB1814F20(at)gateway.2wire.net[/img][img]cid:9C2E9673-9EEA-487A-ACD1-72418B84EAA2(at)gateway.2wire.net[/img][img]cid:927E3A53-30E6-4B25-A4E1-40DE97A50D1C(at)gateway.2wire.net[/img]
On Mar 29, 2010, at 7:31 PM, Tony Speranza wrote:
[quote]
I've been struggling with high cylinder head temperatures for 2+ years...I have tried everything. Stock RV cowling & exhaust installation: TMX-O360 180hp with Carb, Lightspeed & slick mag. I can see CHT's in 430F range or much higher if I did NOT manage power. Mixture & timing correct. Openned up intake & exhaust areas. Resealed w/silicone material (replaced black stuff) - tight fit. Plugged all the little holes w/red RTV. Sealed & recontoured in-let ramps. Spark plugs the coolest offered...I am measureing with Dynon FlightDek 180 and all TCs match exactly & agree with ambient temperature (0 to 100 F). Everyone that looks at it says "looks good, shold cool OK?". I am running out of ideas and would appreciate any feedback or ideas. Thanks...Tony
--- On Mon, 3/29/10, RV-List Digest Server <rv-list(at)matronics.com (rv-list(at)matronics.com)> wrote:
[quote]
From: RV-List Digest Server <rv-list(at)matronics.com (rv-list(at)matronics.com)>
Subject: RV-List Digest: 5 Msgs - 03/28/10
To: "RV-List Digest List" <rv-list-digest(at)matronics.com (rv-list-digest(at)matronics.com)>
Date: Monday, March 29, 2010, 2:59 AM
*
=========================
Online Versions of Today's List Digest Archive
=========================
Today's complete RV-List Digest can also be found in either of the
two Web Links listed below. The .html file includes the Digest formatted
in HTML for viewing with a web browser and features Hyperlinked Indexes
and Message Navigation. The .txt file includes the plain ASCII version
of the RV-List Digest and can be viewed with a generic text editor
such as Notepad or with a web browser.
HTML Version:
http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter=2010-03-28&Archive=RV
Text Version:
http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter=2010-03-28&Archive=RV
=======================
EMail Version of Today's List Digest Archive
=======================
----------------------------------------------------------
RV-List Digest Archive
---
Total Messages Posted Sun 03/28/10: 5
----------------------------------------------------------
Today's Message Index:
----------------------
1. 09:25 AM - Sealing Around Engine Baffles... (Matt Dralle)
2. 12:00 PM - Re: Sealing Around Engine Baffles... (Rick Galati)
3. 12:24 PM - Re: Re: Sealing Around Engine Baffles... (Bruce Gray)
4. 12:25 PM - Re: Sealing Around Engine Baffles... (RV6 Flyer)
5. 07:20 PM - Re: Re: Sealing Around Engine Baffles... (David Cudney)
________________________________ Message 1 _____________________________________
Time: 09:25:41 AM PST US
From: Matt Dralle <dralle(at)matronics.com (dralle(at)matronics.com)>
Subject: Sealing Around Engine Baffles...
Dear Listers,
Regarding the requirement for sealing compound (silicon?) around the baffle-to-engine
areas, what is the recommendation here? Is sealant absolutely necessary?
Adding a compound is going to really ugly-up the installation.
If it is an absolute requirement, what are some suggestions on material to use?
About all I could find on ACS was this:
http://www.aircraftspruce.com/catalog/mepages/rtv.php
At least it comes in Black to match my engine...
Feedback would be most appreciated.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com Matt's Construction Blog
Moved to hanger, wings attached permanently....
________________________________ Message 2 _____________________________________
Time: 12:00:36 PM PST US
From: Rick Galati <rick6a(at)yahoo.com (rick6a(at)yahoo.com)>
Subject: RE: Sealing Around Engine Baffles...
I used-red (high temp) RTV to fill all the nooks and crannies.- In serv
ice for several years, its hold is as tenacious as ever.
-
[IMG]http://i40.tinypic.com/2dkeu69.jpg[/IMG]
________________________________ Message 3 _____________________________________
Time: 12:24:57 PM PST US
From: "Bruce Gray" <bgray(at)glasair.org (bgray(at)glasair.org)>
Subject: RE: RE: Sealing Around Engine Baffles...
I'd fly the airplane first to see if I had any cylinder temp problems.
If I did then I would go with the RTV.
Bruce
www.Glasair.org
--
| | - The Matronics RV-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?RV-List |
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bobbyhester(at)newwavecom
Guest
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| Posted: Tue Mar 30, 2010 3:06 am Post subject: RV-List Digest: 5 Msgs - 03/28/10 |
|
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I have the same problem and have done all the things everyone has suggested. I Manage it, and have learned to live with it. Some have this problem and others do not, with the same setups. On hot day climb outs when it gets near 420 I level out and pull the throttle back until it get under 400 then continue the climb. It's usually only a problem during the hot summer days.
Tony Speranza wrote: [quote]
I've been struggling with high cylinder head temperatures for 2+ years...I have tried everything. Stock RV cowling & exhaust installation: TMX-O360 180hp with Carb, Lightspeed & slick mag. I can see CHT's in 430F range or much higher if I did NOT manage power. Mixture & timing correct. Openned up intake & exhaust areas. Resealed w/silicone material (replaced black stuff) - tight fit. Plugged all the little holes w/red RTV. Sealed & recontoured in-let ramps. Spark plugs the coolest offered...I am measureing with Dynon FlightDek 180 and all TCs match exactly & agree with ambient temperature (0 to 100 F). Everyone that looks at it says "looks good, shold cool OK?". I am running out of ideas and would appreciate any feedback or ideas. Thanks...Tony
--- On Mon, 3/29/10, RV-List Digest Server <rv-list(at)matronics.com> (rv-list(at)matronics.com) wrote:
[quote]
From: RV-List Digest Server <rv-list(at)matronics.com> (rv-list(at)matronics.com)
Subject: RV-List Digest: 5 Msgs - 03/28/10
To: "RV-List Digest List" <rv-list-digest(at)matronics.com> (rv-list-digest(at)matronics.com)
Date: Monday, March 29, 2010, 2:59 AM
*
=========================
Online Versions of Today's List Digest Archive
=========================
Today's complete RV-List Digest can also be found in either of the
two Web Links listed below. The .html file includes the Digest formatted
in HTML for viewing with a web browser and features Hyperlinked Indexes
and Message Navigation. The .txt file includes the plain ASCII version
of the RV-List Digest and can be viewed with a generic text editor
such as Notepad or with a web browser.
HTML Version:
[url=http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 10-03-28&Archive=RV]http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 10-03-28&Archive=RV[/url]
Text Version:
[url=http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 10-03-28&Archive=RV]http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 10-03-28&Archive=RV[/url]
=======================
EMail Version of Today's List Digest Archive
=======================
----------------------------------------------------------
RV-List Digest Archive
---
Total Messages Posted Sun 03/28/10: 5
----------------------------------------------------------
Today's Message Index:
----------------------
1. 09:25 AM - Sealing Around Engine Baffles... (Matt Dralle)
2. 12:00 PM - Re: Sealing Around Engine Baffles... (Rick Galati)
3. 12:24 PM - Re: Re: Sealing Around Engine Baffles... (Bruce Gray)
4. 12:25 PM - Re: Sealing Around Engine Baffles... (RV6 Flyer)
5. 07:20 PM - Re: Re: Sealing Around Engine Baffles... (David Cudney)
________________________________ Message 1 _____________________________________
Time: 09:25:41 AM PST US
From: Matt Dralle <dralle(at)matronics.com (dralle(at)matronics.com)>
Subject: Sealing Around Engine Baffles...
Dear Listers,
Regarding the requirement for sealing compound (silicon?) around the baffle-to-engine
areas, what is the recommendation here? Is sealant absolutely necessary?
Adding a compound is going to really ugly-up the installation.
If it is an absolute requirement, what are some suggestions on material to use?
About all I could find on ACS was this:
http://www.aircraftspruce.com/catalog/mepages/rtv.php
At least it comes in Black to match my engine...
Feedback would be most appreciated.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com Matt's Construction Blog
Moved to hanger, wings attached permanently....
________________________________ Message 2 _____________________________________
Time: 12:00:36 PM PST US
From: Rick Galati <rick6a(at)yahoo.com (rick6a(at)yahoo.com)>
Subject: RE: Sealing Around Engine Baffles...
I used-red (high temp) RTV to fill all the nooks and crannies.- In serv
ice for several years, its hold is as tenacious as ever.
-
[IMG]http://i40.tinypic.com/2dkeu69.jpg[/IMG]
________________________________ Message 3 _____________________________________
Time: 12:24:57 PM PST US
From: "Bruce Gray" <bgray(at)glasair.org (bgray(at)glasair.org)>
Subject: RE: RE: Sealing Around Engine Baffles...
I'd fly the airplane first to see if I had any cylinder temp problems.
If I did then I would go with the RTV.
Bruce
www.Glasair.org
--
| | - The Matronics RV-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?RV-List |
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