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Old 09-27-2001, 10:24 AM
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jsmith jsmith is offline
Join Date: Aug 2001
Location: At Sea
Posts: 1,729
M104 head gasket diagnosis

had my '93 300e-2.8 up on a lift for tranny fluid at my local indy. i asked him to look into the oil leaks and he thinks it is the head gasket. i have done a search and so far here are the symptoms that from what i gather are relevant:

-does not use oil aside from leak (3 in spots on floor overnight)
-no oil in coolant
-oil in plenum - saw this when i changed the plugs.

is the oil in the plenum a positive indication? can i wait until oil starts showing in the coolant? i saw a post that said that at this point it is still an external leak and won't harm the engine. i am just concerned about the oil in the plenum and whether that means that the valve guides etc. might get damaged too. btw, right now it has almost 53k miles.


Last edited by jsmith; 09-27-2001 at 10:31 AM.
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