[T3] 034 on Squareback

[Dave Hall]

ISTR Bob reported that using the timing light on #1 and #3 showed it to be
true for his distributor, but MMCBW (My Memory Could Be Wrong!).

If it started in March 1966 that would cover most of the Type 3s still on
the road.  Maybe it was found to be a problem when VW introduced the 1600
engines.

Dave.
UK VW Type 3&4 Club
===================
-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Jim Adney
Sent: 21 January 2014 16:32
To: type3 at vwtype3.org
Subject: Re: [T3] 034 on Squareback

On 21 Jan 2014 at 7:44, Brian Fye wrote:

> I run 009 and 050 units on my type 3s.  I have never found any 
> evidence that #3 is worse off.  I believe that having your tin without 
> the foam around the cooler is a bigger issue.

Good point. The OG foam has all disintegrated by now. If it's left out,
there's a large space above the oil cooler where air can slip by and escape
without doing any cooling at all. Quite a few years ago I found a good foam
substitute that holds up better than the OG stuff. 
I have a supply of it and can make replacements for engines where it is
missing.

I have a Service Bulletin from Robert Bosch, dated March 1966, that
describes which VW distributors were made with the retarded #3 cam lobe. The
bulletin seems to imply that this is somewhat new, as of this date. The
retardation is 2 dist degrees, or 4 crankshaft degrees. The affected
distributors were:

0 237 137 005, 006, 007, 008, 009, 010, 012, 014

0 231 147 002, 006, 007

I'm afraid I don't have any later Bosch info on this. It's probably worth
mentioning that Gene Berg mentions in one of his writeups that he's never
come across a VW distributor with the retarded #3 cam lobe, so it's clear
that it wasn't done universally.

--
*******************************
Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
*******************************

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