[Vwdiesel] diaphram kits

[LBaird119 at aol.com]

> Does anyone know the part number for the diaphragm kit for the later vacuum
> pumps? I have an 85 Golf with a vacuum pump that looks different than my
two
> 81 Caddy's. The 85 doesn't have the large round area where the diaphragm
goes.
>  Looking down from top the area where I expect the diaphragm would be looks
> like it is shaped more like a home plate in baseball or sort of pentagonal.
> Anyway, it isn't round.

  Isn't it more or less a barrel shape with an odd shaped top?  All cast iron
and steel instead of aluminum?  Those don't have diaphragms, or valves.
They're a rotary pump, like a smog pump or the "lift" pump in the VE pump.
If it's not pulling a strong vacuum, first look for leaks or a bad brake
booster.
If the pump's worn, like mine was, you'll need to face the lid and grind down
the body a bit to match up with the rotor.  The rotor could most likely need
faced lightly as well.
     Loren