[T3] 034 on Squareback

[Jacob Adam Schroeder]

So if I understand this correctly . . . because any retardation of #3 is
based on the cam lobe, then running an electronic ignition (like Pertronix)
would also not have the retardation.  This would be because the points are
opened/closed by sensors on the plate and the special rotor (probably
evenly distributed across their rotor).  Is my logic correct?


On Tue, Jan 21, 2014 at 8:42 AM, Dave Hall <dave at hallvw.clara.co.uk> wrote:

> 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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