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Kelly McMullen
Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ
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 Posted: Wed Jun 10, 2020 5:23 pm Post subject: Injector clocking |
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Quite frankly, I don't think clocking makes much difference for any but the front two cylinders, #1&2.
Clocking mainly affects what happens with the small amount of fuel in the injector line when you shut down hot.
Were you able to restart the injector bodies in the threads to get better clocking, or did you have to go to higher torque, or?
| Quote: | | Sent from my TRS-80 Model 100 |
On Wed, Jun 10, 2020 at 5:05 PM rvdave <rv610dave(at)gmail.com (rv610dave(at)gmail.com)> wrote:
| Quote: | --> RV10-List message posted by: "rvdave" <rv610dave(at)gmail.com (rv610dave(at)gmail.com)>
I found I had the orifice holders clocked opposite what they should have been, so clocked the vent side away from ram air but wasn’t noticeably different. Of course maybe now I need to retune orifices, my next project to see if it makes a difference for peak egts.
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Dave Ford
Cadillac, MI
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Kelly McMullen
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rvdave
Joined: 24 Jan 2009
Posts: 191
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| Posted: Thu Jun 11, 2020 4:41 pm Post subject: Re: Injector clocking |
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I just cleaned real well and clocking and torque worked out to be at correct location.
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Dave Ford
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rvdave
Joined: 24 Jan 2009
Posts: 191
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| Posted: Sun Jun 14, 2020 10:18 am Post subject: Re: Injector clocking |
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After getting all holders aligned and doing some flight testing I’ve found it has made a significant difference for tuning injectors. I’ve gotten down to where I haven’t been able to run smoothly before at lower lop settings . Now I’m down to one more changeout but am lacking one injector size. After all the injectors I’ve purchased I’m wondering if someone out there has a .026 they would trade for one I have in my abundant inventory?
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Dave Ford
Cadillac, MI |
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wgreenley
Joined: 09 Jan 2010
Posts: 100
Location: Dowagiac, MI
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| Posted: Tue Jun 16, 2020 11:15 am Post subject: Injector clocking |
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Thanks for the update, working through the same issues myself, and also in Michigan. Will be reclocking later today. Then off to do some more test flying.
On Sun, Jun 14, 2020 at 2:24 PM rvdave <rv610dave(at)gmail.com (rv610dave(at)gmail.com)> wrote:
| Quote: | --> RV10-List message posted by: "rvdave" <rv610dave(at)gmail.com (rv610dave(at)gmail.com)>
After getting all holders aligned and doing some flight testing I’ve found it has made a significant difference for tuning injectors. I’ve gotten down to where I haven’t been able to run smoothly before at lower lop settings . Now I’m down to one more changeout but am lacking one injector size. After all the injectors I’ve purchased I’m wondering if someone out there has a .026 they would trade for one I have in my abundant inventory?
--------
Dave Ford
Cadillac, MI
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cderk
Joined: 04 Oct 2015
Posts: 14
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| Posted: Tue Jun 16, 2020 11:33 am Post subject: Injector clocking |
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This is actually an interesting thread. Perhaps the injector design has changed over the year. My screen is 360 degrees, so there is no “clocking”.
That said, Dave, I will probably have .0255 available in a few days when i get my next set from AFP.
| Quote: | On Jun 16, 2020, at 3:20 PM, William Greenley <wgreenley(at)gmail.com> wrote:
Thanks for the update, working through the same issues myself, and also in Michigan. Will be reclocking later today. Then off to do some more test flying.
On Sun, Jun 14, 2020 at 2:24 PM rvdave <rv610dave(at)gmail.com (rv610dave(at)gmail.com)> wrote:
| Quote: | --> RV10-List message posted by: "rvdave" <rv610dave(at)gmail.com (rv610dave(at)gmail.com)>
After getting all holders aligned and doing some flight testing I’ve found it has made a significant difference for tuning injectors. I’ve gotten down to where I haven’t been able to run smoothly before at lower lop settings . Now I’m down to one more changeout but am lacking one injector size. After all the injectors I’ve purchased I’m wondering if someone out there has a .026 they would trade for one I have in my abundant inventory?
--------
Dave Ford
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=496835#496835
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Tim Olson
Joined: 25 Jan 2007
Posts: 2872
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| Posted: Tue Jun 16, 2020 11:34 am Post subject: Injector clocking |
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I don't have the injector you need, but just wanted to say
that's great news and thanks for posting back. I wasn't sure
how critical it was, but it's nice to hear it did help.
I'll be tuning injectors again later this year on an IO-540
and will have to make sure all is in order when I do it.
Tim
On 6/14/20 1:18 PM, rvdave wrote:
| Quote: |
After getting all holders aligned and doing some flight testing I’ve found it has made a significant difference for tuning injectors. I’ve gotten down to where I haven’t been able to run smoothly before at lower lop settings . Now I’m down to one more changeout but am lacking one injector size. After all the injectors I’ve purchased I’m wondering if someone out there has a .026 they would trade for one I have in my abundant inventory?
--------
Dave Ford
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=496835#496835
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Tim Olson
Joined: 25 Jan 2007
Posts: 2872
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| Posted: Tue Jun 16, 2020 11:51 am Post subject: Injector clocking |
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The screen is just the screen over the area.
The actual hole is in the base material, underneath the screened area.
Tim
On 6/16/20 2:31 PM, Charlie Derk wrote:
| Quote: | This is actually an interesting thread. Perhaps the injector design has
changed over the year. My screen is 360 degrees, so there is no “clocking”.
That said, Dave, I will probably have .0255 available in a few days when
i get my next set from AFP.
> On Jun 16, 2020, at 3:20 PM, William Greenley <wgreenley(at)gmail.com> wrote:
>
>
> Thanks for the update, working through the same issues myself, and
> also in Michigan. Will be reclocking later today. Then off to do some
> more test flying.
>
> On Sun, Jun 14, 2020 at 2:24 PM rvdave <rv610dave(at)gmail.com
> <mailto:rv610dave(at)gmail.com>> wrote:
>
>
> <mailto:rv610dave(at)gmail.com>>
>
> After getting all holders aligned and doing some flight testing
> I’ve found it has made a significant difference for tuning
> injectors. I’ve gotten down to where I haven’t been able to run
> smoothly before at lower lop settings . Now I’m down to one more
> changeout but am lacking one injector size. After all the
> injectors I’ve purchased I’m wondering if someone out there has a
> .026 they would trade for one I have in my abundant inventory?
>
> --------
> Dave Ford
> Cadillac, MI
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=496835#496835
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> target="_blank">http://www.matronics.com/Navigator?RV10-List
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> -Matt Dralle, List Admin.
> rel="noreferrer" target="_blank">http://www.matronics.com/contribution
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>
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dmaib(at)mac.com
Guest
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| Posted: Tue Jun 16, 2020 12:24 pm Post subject: Injector clocking |
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Dave, I think I have a.026 if you still need one. I’ll check when I go to the airport tomorrow.
David Maib
| Quote: | On Jun 14, 2020, at 14:27, rvdave <rv610dave(at)gmail.com> wrote:
After getting all holders aligned and doing some flight testing I’ve found it has made a significant difference for tuning injectors. I’ve gotten down to where I haven’t been able to run smoothly before at lower lop settings . Now I’m down to one more changeout but am lacking one injector size. After all the injectors I’ve purchased I’m wondering if someone out there has a .026 they would trade for one I have in my abundant inventory?
--------
Dave Ford
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=496835#496835
|
| | - 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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rvdave
Joined: 24 Jan 2009
Posts: 191
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| Posted: Tue Jun 16, 2020 12:38 pm Post subject: Re: Injector clocking |
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Thanks all, I just went ahead and ordered one from afp, I got kind of anxious to complete this now, will let you know results.
| | - 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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Dave Ford
Cadillac, MI |
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Kelly McMullen
Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ
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| Posted: Tue Jun 16, 2020 12:47 pm Post subject: Injector clocking |
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Sometimes I think it is magic. After recleaning and installing 3 injectors that hadn't wanted to clock correctly, I got two of them within 1 flat. The 3rd one, I gave up after 3 installs, always wanting to clock 180 degrees from where it should be. Given it is #4, I'm not too worried about it. I found that 40 in./lbs to 60 in./lbs only moves it about one flat.
On Tue, Jun 16, 2020 at 12:39 PM Tim Olson <Tim(at)myrv10.com (Tim(at)myrv10.com)> wrote:
| Quote: | --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com (Tim(at)myrv10.com)>
I don't have the injector you need, but just wanted to say
that's great news and thanks for posting back. I wasn't sure
how critical it was, but it's nice to hear it did help.
I'll be tuning injectors again later this year on an IO-540
and will have to make sure all is in order when I do it.
Tim
On 6/14/20 1:18 PM, rvdave wrote:
> --> RV10-List message posted by: "rvdave" <rv610dave(at)gmail.com (rv610dave(at)gmail.com)>
>
> After getting all holders aligned and doing some flight testing I’ve found it has made a significant difference for tuning injectors. I’ve gotten down to where I haven’t been able to run smoothly before at lower lop settings . Now I’m down to one more changeout but am lacking one injector size. After all the injectors I’ve purchased I’m wondering if someone out there has a .026 they would trade for one I have in my abundant inventory?
>
> --------
> Dave Ford
> Cadillac, MI
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=496835#496835
>
>
>
>
>
>
>
>
>
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rel="noreferrer" target="_blank">http://www.matronics.com/contribution
===========
|
| | - 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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Kelly McMullen
A&P/IA, EAA Tech Counselor
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rvdave
Joined: 24 Jan 2009
Posts: 191
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| Posted: Sun Jun 28, 2020 3:52 pm Post subject: Re: Injector clocking |
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All is well now, I made the assumption earlier that since i balanced injectors initially to the best of my ability that it must be something else causing rough running at lop operations. I was questioning my ignition system, spark plug type, plug gaps, and was even reaching for heat range possibilities. It made the world of difference for my engine to set the injector holders correctly, it may have been only cylinders 1 and 2, who knows but now I’m happy that I can run lop smoothly and not have passengers wondering why the engine “misfires”. Long mystery solved.
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Dave Ford
Cadillac, MI |
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Tim Olson
Joined: 25 Jan 2007
Posts: 2872
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| Posted: Sun Jun 28, 2020 4:45 pm Post subject: Injector clocking |
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That's great, Dave! Glad you made it through and reported back. More
for the archives for when it hits a future builder!
Tim
On 6/28/20 6:52 PM, rvdave wrote:
| Quote: |
All is well now, I made the assumption earlier that since i balanced injectors initially to the best of my ability that it must be something else causing rough running at lop operations. I was questioning my ignition system, spark plug type, plug gaps, and was even reaching for heat range possibilities. It made the world of difference for my engine to set the injector holders correctly, it may have been only cylinders 1 and 2, who knows but now I’m happy that I can run lop smoothly and not have passengers wondering why the engine “misfiresâ€. Long mystery solved.
--------
Dave Ford
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=497070#497070
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