JohnInKansas
JohnInKansas SuperDork
2/19/20 5:16 p.m.

ISB 5.9, 1999.

Leaking kind of a lot of oil from the left side of the engine block, behind the injection pump by the look of it. Quick Google search of those symptoms says tappet cover gasket, they get old and brittle and crack, possibly with help from excessive crankcase pressure. 

Thoughts?

Jcamper
Jcamper Reader
2/23/20 12:12 p.m.

Mine is a 12 valve, so requires valve adjustment on the regular. Think I had similar issue 15 years ago or so? Replacements that are still fine/not seeping are grayish in color. 
jcamper

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