i was following the rebuild here and now a few months later the vacuum pump housing has broken where the diaphragm's center bolt lines up on the "front plate" where the check valves live. the bolt came free and it just punched a hole in the metal.

anyone have this happen? i'm guessing i was trying to make sure i didn't overtighten, but think it must have been loose and fell out, despite the loctite.

i'll have some pics later, but am trying to find out if a late (piston) style pump is compatible with my 1980 300D that has the early (diaphragm) pump. i have a pump from a 1979 300SD down in Oregon with the single-line out. otherwise i'll see about welding it up or buying a new one.

thanks for any help on this.
-noah

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1980 300D (non-turbo, 421k miles)
1984 300TD (turbo, 305k miles)
1985 Vanagon (170k miles)