[Vwdiesel] Black smoke - low power

[LBaird119 at aol.com]

In a message dated 8/11/2002 9:37:16 PM Pacific Daylight Time,
jrasite at eoni.com writes:

> So the question logically arises... Do I set the pump for the motor or
>  for the pump?  Vanagon spec (pump) .86mm +/- .02 or the Rabbit spec
>  (motor) .92mm

  Always time the engine for the pump it has.  If the orange sticker is still
on the vehicle, use the numbers it gives, providing it's the vehicle the pump
came from.   :)  I've seen .86mm for Rabbits, in Bentley but all the orange
stickers I've seen said .88mm.  I sort of seemed to remember different
numbers for the Vanagon.  Now I know for sure!  :)
>
>  And repeating an earlier question, should I pin the pump pulley to
>  assure TDC? (Rotate back, zero, rotate to TDC, pin, adjust timing.) The
>  TDC notch is a quarter inch wide! Parallax makes it difficult to
>  determine just exactly when it's at TDC.

  The TDC mark should be a "v" right above a "0".  It's a good, accurate
mark except for the parallax.  Unless, again the Vanagon is different!  ;D
You shouldn't need to pin the pump to adjust the timing.  You just loosen
the bolts and rotate it.  The pin fit has a little slop to it, so the best
check for TDC is the "v" mark.
  If you're using one of the "tabs" that are a few degrees to either side of
the "v" notch then your timing will be way off as Scot suspects.  If that's
the case, you might want to recheck your cam timing as well.
     Loren