[T3] do the late 73 T-3 fuel injected distributors havethetiming retard ?

[Dave Hall]

I can confirm that my '71 Squareback does have retarded spark timing on cyl
#3 compared with #1. I finally got round to checking it with the strobe
light, and would suggest #1 was firing about 3 mm (around 1/8") before #3.
I was only judging it by eye, moving the inductive pick-up from one lead to
the other a few times, and it was consistent.  I think that sounds about
right for 4 crankshaft degrees of retard on #3.  I didn't get out the timing
gauge, and I've not got a degree adjustment on the Timestrobe.

It's an original twin-carb Squareback, not messed about; I've not got the FI
Fastback running at the moment to compare, but I've no reason to suppose it
would be different, for the reasons below; likewise a '73 model.  Over to
you guys!

Dave (mythbuster!)
UK VW Type 3&4 Club
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-----Original Message-----
From: type3-vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
On Behalf Of Dave Hall
Sent: 28 August 2016 00:49
To: type3 at vwtype3.org
Subject: Re: [T3] do the late 73 T-3 fuel injected distributors have the
timing retard ?

Sorry to continue the myth, if it is a myth, but someone on here thought to
check the timing with the light on #1 lead, and then compared it with timing
on #3 and said he did indeed find retardation on #3.   It's easy enough to
do that, but I've never remembered to check it yet.  Since the reason I've
heard (only hearsay) is to do with the oil-cooler position, I don't see why
it wouldn't apply to all Type 3s if it applied to any.  Type 1 upright
engines have a different position for the oil cooler.  Later ones had a
'doghouse' arrangement to minimise the blanking effect of the oil cooler on
#3.

Another job to do some time - sooner the better in case I'm spreading false
rumours.  It's a good argument to persuade owners off 009 distributors. ;-)

Dave
UK VW Type 3&4 Club
===================



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