Re: [T3] Adjusting choke on PDSITs?

["Dave Hall" <dave@hallvw.clara.co.uk>]

According the the VW manual:-
If the carb is fitted, adjust the throttle stop screw so it just touches
the throttle lever when the choke flap is fully open. Then close the choke
and adjust the choke connecting rod so the throttle stop screw has a
clearance of 2.3mm (0.09") for manual transmission, or automatic with cam
step under the choke cover numbered 13,
or 3.2mm if it's automatic and the cam step is numbered 35 or has no mark
on it.

If the carb is off, close the choke flap, and adjust the rod so there is a
gap at the throttle valve of 0.7mm (0.027").

The carbs need balancing again after these adjustments.

Often there's a problem with the actual cover position which determines how
much choke there is to start with.
With a cold engine, remove the air cleaner and take a look in the carb top;
the choke flap should be open.  Move the accelerator open and release.  The
choke flap should now be closed.  If it isn't, there's a problem, or it's
hot where you are.
The cover may be rotated from its proper position, or the choke operating
lever is not hooked on the spring inside.  There is also an adjustment that
can be made in the choke operating cam.

Dave.
UK VW Type 3&4 Club
http://www.hallvw.clara.net/
----- Original Message -----
From: King, Robert <Robert.King@dsto.defence.gov.au>
To: <type3@vwtype3.org>
Sent: 08 November 1999 23:27
Subject: [T3] Adjusting choke on PDSITs?


> Greetings,
>
> A quick history - new engine is built and in the notch
> (complete with full flow) and running/idling beautifully when hot.
> Less happy with its performance when cold - it has some hestitation
> etc etc.
>
> I am hoping that I can solve this by a  choke
> adjustment.  Am I right in thinking that  moving
> the choke lever (the little
> gizmo hanging of the choke unit) towards the top of
> the rod that runs from the throttle linkage (at the base of
> the carb) produces 'more' choke by keeping the choke
> flap 'more' closed?
>
> Thanks
>
> RobK
> http://www.pipeline.com.au/users/hoopty
>
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