[Vwdiesel] Diesel injector pump questions.

[82 Diesel Westy]

Sounds like that could be your problem, with all the
work you did and you still have the issue, I would
look at the pump for sure, not blow by.

Bryan, NJ
--- LBaird119 at aol.com wrote:

>   There's always the possibility that your rings
> aren't well seated 
> after sitting while doing all the work. 
>   If you have a bad injector or more they could be
> soaking the 
> inside of the chamber and it's "afterburning."  
>   I had a similar problem sometimes on my Rabbit and
> on top of 
> the pump there are a couple little "fingers" under
> the return 
> spring.  If I wired one of them to stay where it
> sits while in the 
> idle position, it stopped the problem.  No clue just
> what or why 
> but it did fix it.  This was also after having the
> pump rebuilt but 
> it was doing it before as well.
>   Generally if the fueling is turned up too high
> then the car doesn't 
> want to return to idle quickly or will idle high for
> a bit before 
> dropping.  It usually doesn't want to take off.
>   Return line restriction might cause this as well. 
> It seems like the 
> VW pump goes "up" in fueling or timing as the
> internal pressure 
> rises.  GM pumps go down so a constant starve out is
> from a 
> plugged return line.  Worth checking that one.
>      Loren
> 
> 
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