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Old 10-09-2019, 06:38 PM
E. D. Eliot E. D. Eliot is offline
Join Date: Dec 2005
Location: San Pedro
Posts: 1,013
Default Number two exhaust pipe

Wondering about whether or not to replace my number two exhaust pipe on my still not finished 12 or wait until just before first flight? Hoping to get a pi-rep on the replacement pipe from people who have purchased and flown the Van's replacement pipe.

It kind of looks like the consequences of not installing the Van's replacement pipe could be lethal.

I'd hate to buy and install the Van's replacement pipe only to find out that a better replacement pipe had been developed even before I make my first flight. Any pi-reps or suggestions as far as waiting to purchase and install the replacement pipe? Thanks to those who reply.
Building finally
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Old 10-10-2019, 06:49 AM
John-G John-G is offline
Join Date: Jan 2012
Location: Northeast Ohio
Posts: 643


I too have the version of the #2 exhaust pipe that requires replacement. I've had the new replacement pipe for weeks and have just been waiting to perform the swap when doing an oil change .... likely today.

I'm guessing there will not be a need for another replacement for the #2 exhaust pipe ... so if I were you, just make the change now while it is easy for you and don't look back. You will have peace of mind during your first flight and that will be one less distraction for you to worry about.

Happy building,
RV-12 Wings, Empennage, Fuselage, Finishing, Avionics and Powerplant kits all completed
Now Flying!!

Dues paid until September 2020
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Old 10-10-2019, 09:44 AM
NinerBikes NinerBikes is offline
Join Date: Dec 2018
Location: Granada Hills
Posts: 596

Or install a CO detector in the cab and run the original header until it breaks or cracks.
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Old 10-10-2019, 09:56 AM
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Piper J3 Piper J3 is offline
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 1,895

And one of these...

Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 562

LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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Old 10-10-2019, 10:26 AM
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rvbuilder2002 rvbuilder2002 is offline
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 8,827

Originally Posted by NinerBikes View Post
Or install a CO detector in the cab and run the original header until it breaks or cracks.
A broken exhaust system in an aircraft can be a very serious thing.

I would not recommend this approach........
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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Old 10-11-2019, 06:59 AM
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mike newall mike newall is offline
Join Date: Jan 2005
Location: Yorkshire, England
Posts: 1,972

We cut some patches from bent tubing and welded them on as per the modified exhaust.

So we created our own 'new pipe'.
"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q

Donated in 2019
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Old 10-11-2019, 07:31 PM
RFSchaller RFSchaller is offline
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,725

I had an exhaust pipe shear on my first home built, a WAR FW-190. It was a lousy design with too much unsupported weight cantilevered at the end. When it broke the exhaust impinged directly on the stainless steel firewall which caused the wood structure behind it to start charring even though there was a layer of fiber flax insulation. I figured out it happened when my cockpit started to smell like a BBQ pit. Fortunately I was in my 40 hour test phase and about 10 miles from an airport. I learned a lot from that project, but I was glad to sell it to my German cousin - his wife was not thrilled.
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Old 10-11-2019, 08:19 PM
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Jeff Vaughan Jeff Vaughan is offline
Join Date: Jan 2005
Location: West Chester, Pa
Posts: 583

Simple replacement. Do it move on
Jeff Vaughan
RV 7A N561EV Sold
West Chester Pa

2020 donation current
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