[Vwdiesel] Injection pump screw ???

[Gary Shea]

[2002-09-19 14:07 -0400] Travelbike at aol.com (Travelbike at aol.com) wrote:
> I have a 84 1.6 NA Rabbit.  On the injection pump,  above and slightly to the
> right of  the fuel cutoff valve is a screw which has a lock nut so it can't
> be turned without lossening the nut.  Any idea what this is for ??  It is not
> the idle or rpm max screw.
>
> Again thanks

That is the max-fueling screw, it is like a jet change in a carburetor
in that a change to the max-fueling screw has an effect throughout the
rpm range.  It is fairly sensitive -- an eighth of a turn is likely to
have a noticeable effect.

        Gary