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Date:         Wed, 29 Mar 2006 23:25:10 -0800
Reply-To:     Kim Springer <kimspringer@RCN.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Kim Springer <kimspringer@RCN.COM>
Subject:      Why Headers Crack
Content-Type: text/plain; charset="iso-8859-1"


Gang, 


I searched the archives and I can't believe I didn't turn anything up.


I heard an exhaust leak developing, and lo and behold, both of my headers had cracks...big ones.


Why did they crack?  Fatigue, heat differentials (is the temp between the manifold and cold air blowing buy under the car too much temp diff for the material), installed with too much stress initially?


I never had one fail on any of my aircooled VW's.


Anybody ever studied this?  Would it make sense to cover/insulate the new set?


New ones on the way....


KAS
'89 Tri*#7 2WD White
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