The long time VW production rebuilder that looked at my last failure agrees.
The giveaway is the rod had heat bluing on it, and sparks were probably
flying for those last seconds.  All that heat stretches the bolts and
loosens the rod nuts.  When the cap comes off  . . .

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Dennis Haynes

I would say the bearing failed first and then the excess forces broke the
bolts.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Pat
Sent: Sunday, September 09, 2012 10:20 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Low compression, more test results

There's a lot of info out there on this.
According to this link, the valves will always rotate a little.
Also has some opinions on AMC heads and WBX rod bolts.
http://www.shoptalkforums.com/viewtopic.php?f=37&t=134867

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Tom Stone
Sent: Sunday, September 09, 2012 3:31 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Low compression, more test results

"Back in the old beetle days "swivel feet" adjusting screws were also used
to reduce valve rotation.

Dennis"

I thought valve rotation was essential to keeping valves from burning.  I
had a bad experience with burned valves in an air-cooled '76 bus back in the
day and the root cause I was given was that the valve wasn't spinning on its
seat.  Not true?

Tom

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