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spuggy spuggy is offline
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Join Date: Jul 2003
Location: Glorious Pac NW
Posts: 2,772
Alan, do you have the Bosch Technical Instruction manual? (yellow cover)

Dunno if it helps, but from p20:

The control pressure acts through a
damping restriction on the control
plunger and thereby develops the force
which opposes the force of the air in the
air-flow sensor. In doing so, the restric-
tion dampens a possible oscillation of the
sensor plate which could result due to
pulsating air-intake flow.


(my emphasis).



So even if you do have lumpy cams, the damping should take care of it. Assuming you've checked/set the WCP to the correct value, it can only be the damping function of the control plunger in the fuel distributor not working as designed, no?
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'77 S with '78 930 power and a few other things.
Old 11-28-2007, 04:39 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #18 (permalink)