Every head stud i have seen brake was due to some surface pittting that extended into the core of the stud mostly at the base of the stud Bob Donalds Boston Engine http://www.bostonengine.com ----- Original Message ----- From: "jbange" <hfinn@INGRATES.NET> To: <vanagon@GERRY.VANAGON.COM> Sent: Wednesday, May 11, 2005 11:14 AM Subject: Re: Broken stud, anyone has a good one?
> >Hi guys, >>I just did it. The longest kind broke. > > So, regarding broken head studs: why do they break? Corrosion is one way, > from what I read, but what about the ones that break when they're still > shiny, the ridges from the lathe still perfect? Is it a simple "weak part" > issue, with years of heating and cooling leading inevitably to breakage > because one of the sixteen studs just couldn't hack it? Or is it maybe the > result of the initial official VW "over-torque fix" for leaky heads? Is it > perhaps sometimes a result of overheating putting too much strain on them? > |
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