Broken header - cause?

[Karl G. Mueller]

Chuck,

Using the header brace available from Central Hobbies helps to avoid
braking of the flared end. I been running this brace on a Y.S.140L and
never had the flared end brake. In a new set up where I had no space to
allow for a header brace I broke the flanges on 2 headers after only
a few flights. Give the header brace a try. It worked for me.

Karl G. Mueller
kgamueller at rogers.com

----- Original Message ----- 
From: "Chuck Czarnik" <CCzarnik at arclp.com>
To: <discussion at nsrca.org>
Sent: Sunday, October 12, 2003 10:00 AM
Subject: Broken header - cause?



After re-working my exhaust system my AAP header broke on the first start
up.  The flare on the end where it screws into the engine broke off and it
started leaking there.

I have the pipe secured at the front and back, with about 5" of teflon
connected to the header.  Engine is YS 140 sport on Hyde ARI.  So, did I
kill it with a pipe mouted too stiff, or do these things break there anyway?

Trying to decide if I have more work to do so I won't tear up another one.

Thanks for any help! Chuck

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