[Vwdiesel] 81 Head Bolts

Rudy petersenrudy at hotmail.com
Sun Jun 17 15:11:04 EDT 2007


That's what it looks like to me!
Rudy

-----Original Message-----
From: Tony and Lillie [mailto:tonyandlillie1 at earthlink.net] 
Sent: Sunday, June 17, 2007 12:10 PM
To: Rudy
Subject: Re: [Vwdiesel] 81 Head Bolts

Are some of the 11mm heads shorter than others? I can't imagine that is the
case.

Tony

----- Original Message -----
From: "Rudy" <petersenrudy at hotmail.com>
To: <vwdiesel at vwfans.com>
Sent: Sunday, June 17, 2007 1:08 PM
Subject: Re: [Vwdiesel] 81 Head Bolts


>I found another Head in my shop yesterday with the same deep recessed Head
> Bolt lands and the same length from the Head surface to the Washer Land 
> and
> is off a known 11mm Head Bolt block.
>
> I've opened up the Bolt holes and widened the Washer Lands on some 11mm
> Heads to use on 12mm Engines which worked fine.
>
> My conclusion is that someone bored out the Bolt Holes and used an 11mm 
> Head
> on a 12mm Block and found a different Bolt and Washer configuration to fit
> the shorter distance from the Head surface to the Washer Land.  Confusing 
> to
> say the least.  Not all 11mm Heads can be used on a 12mm Block.  By the 
> way,
> these weird Bolts have 10.9 and Germany stamped on the head of the
> Bolt.........Rudy
>
> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
> Behalf Of LBaird119 at aol.com
> Sent: Friday, June 15, 2007 10:03 PM
> To: vwdiesel at vwfans.com
> Subject: Re: [Vwdiesel] 81 Head Bolts
>
>  Sounds like something that "fits" has been used, maybe by someone that
> didn't like stretch bolts.  I believe stretch bolt are all full-thread so
> that would make then non stretch.  Maybe they're stock bolts from a 
> fastener
> supplier, maybe they're from another engine.  They were too long so 
> spacers
> were used to keep them from bottoming out.  Someone went to a bit of 
> trouble
> measuring and figuring to use a substitute bolt.
>      Loren
>
>
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