VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.


Go Back   VAF Forums > Model Specific > RV-10
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 05-21-2018, 08:52 AM
X747 X747 is offline
 
Join Date: Nov 2015
Location: Reno, Nevada
Posts: 11
Default RV10 Cowling Heat Shield

I have experienced blistering on the interior of the lower cowling from the exhaust stacks. Any suggestions for a permanent fix.
Reply With Quote
  #2  
Old 05-21-2018, 11:25 AM
Mike S's Avatar
Mike S Mike S is offline
Senior Curmudgeon
 
Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,109
Default

Vans has a heat shield product that is designed for this.

Adhesive backed alum foil.

Big thing is to get the inner cowl surface clean, and smooth. A wet coat of epoxy brushed on is a good way to do it. Sand as needed, roll on foil.
__________________
Mike Starkey
VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
Reply With Quote
  #3  
Old 05-21-2018, 12:23 PM
az_gila's Avatar
az_gila az_gila is offline
 
Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
Smile

Quote:
Originally Posted by Mike S View Post
Vans has a heat shield product that is designed for this.

Adhesive backed alum foil.

Big thing is to get the inner cowl surface clean, and smooth. A wet coat of epoxy brushed on is a good way to do it. Sand as needed, roll on foil.
And then seal the edges with a narrow brushed coat of epoxy or red RTV.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
Reply With Quote
  #4  
Old 05-21-2018, 07:43 PM
AviatorJ AviatorJ is offline
 
Join Date: Feb 2015
Location: Oklahoma City
Posts: 975
Default

Quote:
Originally Posted by Mike S View Post
Vans has a heat shield product that is designed for this.

Adhesive backed alum foil.

Big thing is to get the inner cowl surface clean, and smooth. A wet coat of epoxy brushed on is a good way to do it. Sand as needed, roll on foil.
Just did this... hope it works, used aluminum tape on the edges as well.
__________________
Justin
RV-10, N10JW
Flying since 2/14/2019
http://operationrv10.blogspot.com/
Reply With Quote
  #5  
Old 05-21-2018, 11:26 PM
Lenny Iszak's Avatar
Lenny Iszak Lenny Iszak is offline
 
Join Date: Sep 2008
Location: Palm City, FL
Posts: 381
Default exhaust shields

In addition you could use some of these where the exhaust pipes get close to the cowling.

http://www.aircraftspruce.com/catalo...clickkey=20271
__________________
Lenny Iszak
Palm City, FL
2014 RV-10, N311LZ - 775 hrs
OnSpeed development team
Reply With Quote
  #6  
Old 05-21-2018, 11:43 PM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,639
Default

For maximum protection, you can use fiberfrax and top it off with the aluminum foil. I had used this in my lower cowl and was amazing how cool the bottom cowl felt to touch even after just shut down of the engine.

http://www.aircraftspruce.com/catalo...SABEgLn__D_BwE
__________________
Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - SOLD
N258SM RV14A - IO390EXP119 - in progress
Dues paid
Reply With Quote
  #7  
Old 05-22-2018, 06:48 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 6,322
Default

Quote:
Originally Posted by Bavafa View Post
For maximum protection, you can use fiberfrax and top it off with the aluminum foil. I had used this in my lower cowl and was amazing how cool the bottom cowl felt to touch even after just shut down of the engine.

http://www.aircraftspruce.com/catalo...SABEgLn__D_BwE
If the pipe is really close, the mechanical heat shield on the pipe may hit, mine did. I turned to this method, it is recommended. Kinda like a bandaid, but sealed around the full perimeter.
__________________
Bill

RV-7
Reply With Quote
  #8  
Old 05-22-2018, 09:00 AM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 6,721
Default

I used simple foil tape on the lower cowl interior to reflect heat on my 6A. In close vicinity to the exhaust pipes themselves I used the heat reflective material that I used on the firewall (thermocool, I believe - It is a layer of reflective foil with a layer of fiberglass + adhesive). In other areas, I used a good qualilty (read: thicker than the cheap stuff) aluminum tape. My exhaust gets very close to the cowl and have had no heat related paint issues on my cowl in 500 hours. I extended the foil to cover any area within 6" of linear distance from any exhaust pipe.

Larry
__________________
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019

Last edited by lr172 : 05-22-2018 at 09:06 AM.
Reply With Quote
  #9  
Old 05-24-2018, 08:55 AM
Bill.Peyton's Avatar
Bill.Peyton Bill.Peyton is offline
 
Join Date: Sep 2009
Location: St. Louis, MO
Posts: 1,885
Default

ACS adhesive backed insulation



[IMG]photo 1 by Bill Peyton, on Flickr[/IMG]
__________________
Bill Peyton
RV-10 - 1285 hours
N37CP
First Flight Oct 2012
Aviation Partners, LLC


WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

Last edited by Bill.Peyton : 05-24-2018 at 08:58 AM.
Reply With Quote
  #10  
Old 05-25-2018, 01:04 PM
bkthomps bkthomps is offline
 
Join Date: Jan 2010
Location: Destin
Posts: 1,546
Default

i also highly recommend getting some teflon tape, and lining the sections where the baffling material rubs against the cowl, you will be amazed at the reduced vibrations transmitted to the airframe
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 05:45 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.