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  #1  
Old 09-13-2017, 01:25 PM
Bluelabel's Avatar
Bluelabel Bluelabel is offline
 
Join Date: Aug 2013
Location: San Diego, Ca
Posts: 397
Default Baffles Seals REV 2

I decided since the taxiway in front of my hangar was getting repaired for a couple weeks, I'd take the opportunity to re-do my baffle seals. My engine has always been on the hot side. Manageable, but I'd really like to have more headroom on hot days.
I though there was a pretty good chance I was getting some leaks in the back corners as the the air may have pushed the material down. We started with the original material from Van's.
I shopped a few things at Oshkosh and decided to give the McFarlan Cowl Saver stuff a try. It's extremely slick on one side and much stiffer than the original.
While I was at it, I figured I'd make it look cool too. Worst case scenario, I have the same cooling and a better look with the cowl off.
So, I whipped up new strips for both sides so the rivets had something good to bite into, off to the anodizer, and here we are.
First flight with them was on Saturday to fly young eagles. Getting the cowl on for the first time was a bear!!.
So far it seems I may have lowered the temps a couple degrees at best. Won't really know for sure until I go somewhere where I can get up high in cruise where I know exactly what temps I usually see.

Here's the before and after pics...

Before:




After


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John Walker
RV-10 N265WD
"Miss Whiskey Delta"
BPE IO-540, FULL EFII
KMYF, San Diego, Ca.
KEOS, Neosho, MO

Crew Lead on the
Grove Aero Super Legacy Reno Racer,
twin turbo, IO-540,
full EFII management system
!

"so I got that going for me... which is nice."
2017 Dues Paid"
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  #2  
Old 09-13-2017, 01:54 PM
rv8ch rv8ch is offline
 
Join Date: Feb 2005
Location: LSGG
Posts: 2,114
Default Cowling inlets

Hi John - thanks for sharing the photos - do you have any pic of the area around the cowl inlets? That's always a tricky area I believe.
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  #3  
Old 09-13-2017, 01:58 PM
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Bluelabel Bluelabel is offline
 
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Location: San Diego, Ca
Posts: 397
Default

Quote:
Originally Posted by rv8ch View Post
Hi John - thanks for sharing the photos - do you have any pic of the area around the cowl inlets? That's always a tricky area I believe.
Those are the only pics I took. everything there is to see is there.
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John Walker
RV-10 N265WD
"Miss Whiskey Delta"
BPE IO-540, FULL EFII
KMYF, San Diego, Ca.
KEOS, Neosho, MO

Crew Lead on the
Grove Aero Super Legacy Reno Racer,
twin turbo, IO-540,
full EFII management system
!

"so I got that going for me... which is nice."
2017 Dues Paid"

Last edited by Bluelabel : 09-20-2017 at 11:47 PM.
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  #4  
Old 09-13-2017, 05:23 PM
rocketman1988 rocketman1988 is offline
 
Join Date: Jun 2010
Location: Sunman, IN
Posts: 722
Default Baffles

John, what did you do to finish the baffles? Paint, powder coat, anodize?
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Aerospace Engineer '88

RV-10
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  #5  
Old 09-13-2017, 07:29 PM
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Bluelabel Bluelabel is offline
 
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Location: San Diego, Ca
Posts: 397
Default

Quote:
Originally Posted by rocketman1988 View Post
John, what did you do to finish the baffles? Paint, powder coat, anodize?
Just high temp paint. I anodized the strips for the baffle seals.
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John Walker
RV-10 N265WD
"Miss Whiskey Delta"
BPE IO-540, FULL EFII
KMYF, San Diego, Ca.
KEOS, Neosho, MO

Crew Lead on the
Grove Aero Super Legacy Reno Racer,
twin turbo, IO-540,
full EFII management system
!

"so I got that going for me... which is nice."
2017 Dues Paid"
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  #6  
Old 09-13-2017, 07:40 PM
krwalsh krwalsh is offline
 
Join Date: Nov 2009
Location: San Francisco, CA
Posts: 255
Default Umm..

Excuse me for a few weeks. I'll be in the hangar redoing my baffles. They suddenly look awful...

Nice work there. Can I ask what the insulation on the wiring (?) is for?
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  #7  
Old 09-13-2017, 08:00 PM
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Bluelabel Bluelabel is offline
 
Join Date: Aug 2013
Location: San Diego, Ca
Posts: 397
Default

Quote:
Originally Posted by krwalsh View Post
Excuse me for a few weeks. I'll be in the hangar redoing my baffles. They suddenly look awful...

Nice work there. Can I ask what the insulation on the wiring (?) is for?
Thanks....Just heat shield. To protect everything as best we could. Inside, anything that's a signal wire is shielded from other signal wires as well.
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John Walker
RV-10 N265WD
"Miss Whiskey Delta"
BPE IO-540, FULL EFII
KMYF, San Diego, Ca.
KEOS, Neosho, MO

Crew Lead on the
Grove Aero Super Legacy Reno Racer,
twin turbo, IO-540,
full EFII management system
!

"so I got that going for me... which is nice."
2017 Dues Paid"

Last edited by Bluelabel : 09-20-2017 at 11:48 PM.
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  #8  
Old 09-13-2017, 11:01 PM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
Posts: 7,193
Default

Quote:
Originally Posted by rv8ch View Post
Hi John - thanks for sharing the photos - do you have any pic of the area around the cowl inlets? That's always a tricky area I believe.
Quote:
Originally Posted by Bluelabel View Post
Those are the only pics I took. everything there is to see is there clear as day
So, John, do you have seals around the inlets? I think I see rub marks on the baffle tin, but your answer suggests there are none.
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  #9  
Old 09-14-2017, 11:13 AM
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Bluelabel Bluelabel is offline
 
Join Date: Aug 2013
Location: San Diego, Ca
Posts: 397
Default

Quote:
Originally Posted by DanH View Post
So, John, do you have seals around the inlets? I think I see rub marks on the baffle tin, but your answer suggests there are none.
Yes, I have baffle seal material on the sides of the ramps. Same thing I've seen most other people do. That area gets a great seal.
I don't have any pictures of that. I might redo it with the new material so it's consistent.
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John Walker
RV-10 N265WD
"Miss Whiskey Delta"
BPE IO-540, FULL EFII
KMYF, San Diego, Ca.
KEOS, Neosho, MO

Crew Lead on the
Grove Aero Super Legacy Reno Racer,
twin turbo, IO-540,
full EFII management system
!

"so I got that going for me... which is nice."
2017 Dues Paid"
Reply With Quote
  #10  
Old 09-14-2017, 03:22 PM
AviatorJ AviatorJ is offline
 
Join Date: Feb 2015
Location: Oklahoma City
Posts: 513
Default

John, what's on your firewall?
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