[T3] Huston, we have ignition! (was RE: Some Spark but no Fire (was RE: Updatewith a Bowl Full of Rust Flakes))

Dave Hall dave at hallvw.clara.co.uk
Wed Jul 27 10:07:05 PDT 2011

Oops!  The VW timing info says to time it dynamically at TDC with the vac
pipe OFF for that earlier FI engine.  Does the pipe off make much
difference?  If the pipe is left on, will that show some advance or does it
come in later on?  

I guess it's just coincidence that I have dual vac on both my 71 twin carb
and 72 FI.

Anyway, sticking to the factory method has got to be right.  The last VW
engine I timed statically was on the '59 Beetle, when no-one had a strobe
light anyway!

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: 27 July 2011 12:48
To: type3 at vwtype3.org
Subject: Re: [T3] Huston,we have ignition! (was RE: Some Spark but no Fire
(was RE: Updatewith a Bowl Full of Rust Flakes))

On 27 Jul 2011 at 11:38, Dave Hall wrote:

> If you time it statically - without a light - the first mark to the 
> right of TDC should be close.  That's 7.5 deg BTDC.  As you have a 
> light, why not time it correctly, as the factory recommends?  That's 
> what most of us  do, and no-one's had a problem following the factory

He's got a US FI '71, which has no vac retard, so statically or dynamically,
it should be set to TDC. Dynamically just tends to be slightly more

(I'm afraid the 7.5 reference is just going to be confusing.)

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

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