[Vwdiesel] Injector pump leak 91 TD

[Will Taygan]

I believe the later 1.6TD pumps have a rpm increase AS WELL AS a timing
advance at idle when you pull the cold start lever.  Somewhere I read
this for the later a2s.  I've got a '91 eco where the rpm increase is
obvious.

Make sure your cold start lever is IN for timing adjustments.

Will in Alaska.

On Thu, 2011-06-16 at 09:05 -0600, Owen Scott wrote:
> Hey Folks,
> 
> So the last couple of days I noticed a strong fuel smell in my 91 Jetta TD.
> I popped the hood with it idling and noticed it was leaking from the point
> indicated in the picture to the tune of 2-3 drips per second.
> 
> I thought I read once that this "part" is used to control somethign with the
> cold start system. Is that the case? Can I fix this easily? My preference
> would be to fix in place, but I do have a parts car with a non-leaky pump,
> should I just swap that on?
> 
> I have noticed that once the engine warms up the car idles around 1600-1700
> RPM with cold start pulled out which is obviously alot higher than it
> should. It drops down to normal range (900ish) when the cold start is pushed
> in. So if it does have to do with the cold start system I'm wondering if the
> PO was monkeying with this (just bought a week ago - no leak then). I
> remember him asking me when I was looking at it if I knew how to adjust the
> idle on "these things". I said I didn't know as I've never had to on the 5
> or so I've owned, and didn't asked if he'd tried....but looking I would
> assume its that rod w/ the spring on the back of the pump connected to where
> you attach the cold start handle....
> 
> Any thoughts/comments appreciated!
> 
> Thanks,
> 
> Owen
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