Date: Mon, 8 May 95 12:04:38 PDT
Sender: Vanagon Mailing List <vanagon@vanagon.com>
From: Dave Kautz <dkautz@hpsidms1.sid.hp.com>
Subject: Re: 2 litre align-bore
Aaron Sedgmen writes:
Upon dismantling the case I discovered writing <VW logo and
some numbers> on one of the main bearing journals <no. 2> which
suggests to me that the case has not previously been align bored.
Does this logic hold true for those in the know?
-----------------------------------------------------------------------------
According to "How to Rebuild your Air-Cooled VW Engine" the writing you are
seeing on the case will correspond exactly to what is written on the back of
the bearing - It has been "printed" into the case by the pounding of the
crankshaft. It is an indicator of the need to do a line bore, not whether
one has been done already. The book also says to check for fretted material
on the case at the center journal parting lines as an indicator that a line
bore is required. When I took apart my 1800 it also showed the bearing
markings in the case but I saw no evidence of fretting. What I did find
disturbing was that I could rotate the #1 bearing slightly in the case
when it was still bolted together. This says to me that the case was
distorted enough that it wasn't "clamping" that bearing tightly. BTW,
it was a rebuilt from VWoA and hadn't been line bored.
Good Luck,
Dave
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