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08-21-2013, 01:32 PM
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Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,344
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Best baffle material to use
I need to replace some of the baffle material on my engine after about 400 hours and was wondering what is the best material to use. I have used the standard Vans supplied black rubber and it has held up pretty well with the exception that I think it has formed a curve to the point that is not sealing well against the cowl. I put a flash light inside and could see light coming thru then hooked up my vacuum shop as a blower and air was sipping thru, so I am thinking of replacing them.
Thoughts and ideas?
Thanks in advance
__________________
Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - Flying
Dues paid
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08-21-2013, 01:34 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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I used the orange stuff from Aircraft Spruce------like it 
I have a lot left over if you want to stop by and get some to play with. Also have a lot of the black stuff from Vans if you want it.
__________________
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."
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08-21-2013, 01:45 PM
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Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,344
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Thanks Mike, I really appreciate it.
If you don't mind, I will stop by to check it out.
sent PM.
__________________
Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - Flying
Dues paid
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08-21-2013, 02:48 PM
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Join Date: Jan 2005
Location: West Chester, Pa
Posts: 583
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I noticed that the orange stuff comes in different thicknesses.
Which thickness is best?
Thinking of upgrading my baffle seals
__________________
Jeff Vaughan
RV 12 N237VW ELSA
RV 7A N561EV Sold
West Chester Pa
2020 donation current
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08-21-2013, 05:30 PM
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Join Date: Jun 2007
Location: KPIE, sort of
Posts: 25
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__________________
Love the idea of a light -3
But an -8 is much more practical
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08-21-2013, 08:06 PM
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Join Date: Oct 2005
Location: Highland Village, TX
Posts: 1,519
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I used the McFarlane material on both sides and across the back during my initial build. After almost 500 hours, its holding up well on the sides but deformed quite a bit on the back.
I replaced the McFarlane with the thinner silicone material that ACS sells. I also replaced the Vans material that I used on the front-center baffle. The thin ACS material is much heavier than the stuff from Vans. If you get the baffle material from Spruce, I see no reason to use the thick stuff.
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Rick Aronow,
A&P
Flying 7A Slider;
RV-12 SOLD
Highland Village,TX
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08-21-2013, 08:30 PM
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Join Date: Oct 2005
Posts: 1,516
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Another vote for McFarlane
You won't regret the price and you'll love the product.
Apart from the quality make up of this baffle material, it is coated with some slick silicone material to minimize the transfer of vibrations to the cowl.
__________________
Ernst Freitag
RV-8 finished (sold)
RV-10 Flyer 600 plus hours
Running on E10 mogas
Don't believe everything you know. 
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08-22-2013, 07:01 AM
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Join Date: Sep 2012
Location: Prairieville, LA
Posts: 221
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Great Timing
I am at the baffle material time.
Baffles are on the engine but not trimmed yet.
Getting ready to start on cowling.
How much material needed.
Will the 3" do the job and if so how long of a piece.
Might as well do it improved the first time.
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Bert 
RV-9A ?Pearl?
Working on Instrument ticket
Donation Done for 2020
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08-22-2013, 10:35 AM
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Join Date: May 2007
Location: salem Oregon
Posts: 1,023
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I hear there are after market plenum top for the RV 7 & 9s. Anybody know where you can purchase them?
Ron
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08-22-2013, 10:58 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Ron, talk to Henry B about them.
__________________
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."
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