[Vwdiesel] Pump

[Rudy]

I just changed Head Gasket, Timing Belt ect. on an 81 Rabbit, new seals on
Cold Start and Input Shaft.  Timed it around .98mm.  It idles fine and
smooth, when I start out and first step on the trottle it wants to rev
higher and back down and doesn't stay stable.  No other way to describe it.
 
It acts kind of like a gas car that is timed to far advanced.  It revs a
little ahead of the trottle if that makes any sense.  Once I get going at
speed or a little higher trottle position it seems to smooth out and goes
down the road fine.  Almost seems to me like the advance in the pump is
coming in to early or at least feels like it anyway.  I hope this makes
sense to someone.  Wondering if initial advance is set to high for this
pump.  ??
 
Rudy