Date:         Tue, 7 Sep 2010 16:46:28 -0700
Reply-To:     Evan Mac Donald <evanm@ATT.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Evan Mac Donald <evanm@ATT.NET>
Subject:      Re: Fwd: Boston Bob on Connecting Rod Bolts
In-Reply-To:  <4c85911c.0b81dc0a.4f12.13ab@mx.google.com>
Content-Type: text/plain; charset=iso-8859-1



I did not send my rods to Bob before he passed. Since the business has passed 
into other hands, the rebuuilding of rods as a service is not listed 
anymore. Now, I need to find a different source for this job. Has anyone heard 
anything, good or bad about this outfit:

http://www.thesamba.com/vw/classifieds/detail.php?id=931786

I hope to get my rods out this time, before something bad happens again...

________________________________

<<Snip>>

>Evan
>1.9 and 2.1 rods are the same casting and are interchangeable with the
>exception of the bolt. The longer stroke 2.1 cranks in combination with the
>1.9 rod bolts can but do not always hit the camshaft
>The 2.1 rod bolt work well for 150K and I have seen these stretch to yield
>bolts reused with failing.
>2.1 rods distort over time by this I mean the big end is no longer round.
>The cap shifts and the big end gets smaller opposite the parting line.
>Another way to say that is if you draw a line down the rod from the small
>end threw the beam of the rod threw the big end the circle is smaller at
>that point. So just replacing the bolts is not the cure for the 2.1 rod
>problem. The big end needs to be resized to do this I have a cap grinder it
>trims a few thousandths off of the mating surfaces of both the rod and cap.
>After deburing the hole and installing new non stretch to yield bolts and
>reassembling the rod I torque the nuts and resize the big end with a sunnen
>rod hone. Machine shops have spec books to provide dimensions for the
>finished size.

>>snip<<