Hi,

I have some oily goop on the front of my engine block. The funny thing is, it seems to come from the top of my vacuum pump.

I don't leak PS fluid, and the valvecover gasket in this area doesnt leak. No signs of a leak at the headgasket, so I have to believe, since the majority of gunkis from atop the vacuum pump, that it is the culprit.

Has anyone seen them leak from the top, where it mates to the block? The pump works great, and Ive never had an issue with oil in the vac lines, or low vac performance.

Can I just remove the pump and replace the gasket, or is it a very complex task?

Thanks very much,

JMH

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)

What is the possibility that the vacuum pump is sucking trans fluid from a faulty trans modulator valve...

Just trying to speculate...

trans fluid level hasnt changed since I replaced the fluid and filter about 12k ago.

modulator was a bit oily inside the cap last time I was tinkering with it... I ought to replace it for good measure, I guess.

Thanks,

JMH

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)