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-4
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 07-06-2022, 01:23 PM
riobison riobison is offline
 
Join Date: Jul 2011
Location: Oliver BC & Red Deer Alberta Canada
Posts: 459
Default Tube from my ram air to my airbox is on its last legs.

On my RV 4 with an o360 the tube from my ram air on the cowl to my airbox is on its last legs.

It appears to be a 1/8"+- sheet of silicone wrapped around into shape to fit and riveted into place on the airbox.

Would anyone have any idea on where to get this or other practical options? Would the one from a Citabria fit if cut to length?

Thanks

Tim
Reply With Quote
  #2  
Old 07-06-2022, 04:48 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 3,735
Default

If you are ok with fiberglass work, you can do something like this. This uses a 3” SCAT hose between the airbox and the cowl engine air inlet. I suggest you figure out what size SCAT hose works best for your inlet and modify the airbox accordingly.

Carl
Reply With Quote
  #3  
Old 07-06-2022, 05:02 PM
Sam Buchanan's Avatar
Sam Buchanan Sam Buchanan is offline
been here awhile
 
Join Date: Dec 2004
Location: North Alabama
Posts: 4,582
Default

Quote:
Originally Posted by riobison View Post
On my RV 4 with an o360 the tube from my ram air on the cowl to my airbox is on its last legs.

It appears to be a 1/8"+- sheet of silicone wrapped around into shape to fit and riveted into place on the airbox.

Would anyone have any idea on where to get this or other practical options? Would the one from a Citabria fit if cut to length?

Thanks

Tim
The material is common baffle seal. Cut, roll, and rivet as necessary.

http://https://www.aircraftspruce.com/catalog/appages/siliconecowlseals5.php
__________________
Sam Buchanan
RV-6

Last edited by Sam Buchanan : 07-06-2022 at 05:05 PM.
Reply With Quote
  #4  
Old 07-07-2022, 07:20 AM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 7,293
Default

Quote:
Originally Posted by Sam Buchanan View Post
The material is common baffle seal. Cut, roll, and rivet as necessary.

http://https://www.aircraftspruce.com/catalog/appages/siliconecowlseals5.php
It may not be. I just built and installed a new 360 scoop and a new FAB for a 6A owner and the new FAB kits now include silicone (3/32 I think) for the seal around the cowl inlet. I believe it is an improvement over the rubber baffle seal, due to it's flexibility and ability to hold it's shape over time.

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

Last edited by lr172 : 07-07-2022 at 07:25 AM.
Reply With Quote
  #5  
Old 07-07-2022, 10:28 AM
riobison riobison is offline
 
Join Date: Jul 2011
Location: Oliver BC & Red Deer Alberta Canada
Posts: 459
Default 1/8 strip of silicone

I've just looked again on Vans web site and not able to find that seal or hose for it. Looking further it does appear to be a 2" wide strip of maybe 1/8" silicone or use of baffle seal.

Thanks

Tim
Reply With Quote
  #6  
Old 07-07-2022, 10:53 AM
Ralph Inkster Ralph Inkster is offline
 
Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,837
Default

I can't remember what Jack used in there. Maybe baffle material, maybe custom.
Either way, you could make the replacement by squeegeeing Permatex red silicone sealer into fiberglass cloth, trim it to your dimensions & attach it similar to the original.
__________________
Ralph
built a few RVs, rebuilt a few more, hot rodded more, & maintained/updated a big bunch more
Reply With Quote
  #7  
Old 07-07-2022, 10:55 AM
Ralph Inkster Ralph Inkster is offline
 
Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,837
Default

Also Tim -
I have some Vans baffle material here if you happen to be passing by...

Ralph
__________________
Ralph
built a few RVs, rebuilt a few more, hot rodded more, & maintained/updated a big bunch more
Reply With Quote
  #8  
Old 07-07-2022, 04:57 PM
Ralph Ketter's Avatar
Ralph Ketter Ralph Ketter is offline
 
Join Date: May 2005
Location: La Luz, NM
Posts: 57
Default Silicone SEAL-00009

Quote:
Originally Posted by riobison View Post
On my RV 4 with an o360 the tube from my ram air on the cowl to my airbox is on its last legs.

It appears to be a 1/8"+- sheet of silicone wrapped around into shape to fit and riveted into place on the airbox.

Thanks

Tim
The updated FAB-360 instructions calls out silicone Vans P/N SEAL-00009
https://store.vansaircraft.com/seal-...eal-00009.html Currently $7.50
__________________
Ralph Ketter
La Luz, NM

RV-6 Flying
Reply With Quote
  #9  
Old 07-07-2022, 06:22 PM
Scott Hersha Scott Hersha is offline
 
Join Date: Jan 2005
Location: Cincinnati, OH
Posts: 2,285
Default

My recent FAB kit for my RV6 included the silicone piece for the intake scoop. There was more material than I needed, but not enough to make it twice. I made the seal according to the plans. The first time I put my lower cowling on, the silicone seal tore in two places. It tears easily. It doesn’t seem like a good material to use for this application to me. I made a new seal out of regular baffle seal material, and it has performed just fine.
__________________
SH
RV6/2001 built 2000/sold 2005
RV8 Fastback/2008 built/sold 2015
RV4/bought 2016/sold/2017
RV8/2018 built/Sold(sadly)
RV4/bought 2019/sold2021
RV6/Used kit purchased 2021 building
Cincinnati, OH/KHAO
JAN2022
Reply With Quote
  #10  
Old 07-08-2022, 11:28 AM
riobison riobison is offline
 
Join Date: Jul 2011
Location: Oliver BC & Red Deer Alberta Canada
Posts: 459
Default

The filtered Airseal was not very clear nor is there a foto and another $50+ shipping so I dropped that idea.

Thanks for the offer Ralph.

I was able to procure a 12"*12"*1/8" neoprene here in Red Deer for under $5.00. Did a temp install last night to make sure it would work as the 1/8 is a little stiffer then the old existing piece. Everything seemed to fit on perfect so now I'm off to get some rivets. Seems like I have every sized rivet except the ones I need.

Thanks everyone

Tim
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 08:52 PM.


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.