[Vwdiesel] Fueling screw on VE pumps. --( Rabbits )

[H.Hagar]

Gavrik Peterson --- glad to see you involved. 

IMHO  it is going to take a lot of the better brains here to find a simple way of
explaining the incredible complex functioning of these little delights. But lets ask
everybody to come forward ---- all wet or not.   If I know you will all know-- that you can
take  to the bank.  I do not hold anything back.

Notice I said LOAD was involved.    How does the pump know load ? is can
tell the difference of throttle position and RPM  --  when the gap go bigger the
control sleeve is moved to cover bleed hole.  ---more fuel.  If screw is all the
way in ---it covers hole according to factory setting for that pump ---it is a stop
collar welded or staked on thread. (Maximum fuel) ---

Why do I keep calling it the fueling screw ? simple ---someone asked how do we
increase fuel delivery ---- for practical purposes it is the screw we adjust to get more 
or less fuel.    "Mixture".        It is a mechanical stop for linkage moving control sleeve.

It pushes only , it does not pull.      Because of all the springs and pivots involved
it becomes a Rubik's cube of injection.   I for one will not give up until I feel
the pump has been tamed.   We will make it.

Maximum load stop ?   fine --  maximum fuel ?  fine .  lots of ways to describe it
but I shall dig out the real Bosch name and translate it some day.

>So turn in the fueling screw and you increase fuel at any pedal position.

I don't think that this is true.
Gavrik


I say statement is pretty close -- is does increase fuel right across the range. even at idle-
that is why you have to reset idle stop.

Hagar.