Thread: How deep fitted depth of crankshaft seal V8?

As long as it fits in the hole in the timing case square, it can really be fitted at any depth.
I am referring to a V belt 3.9 . I have measured the crank pulley vs the timing cover and really if its not pushed right through it is OK.

Regards Philip A

I get varying successes with viton front timing case and crank pulley seals. I sometimes revert to the older neoprene when such sealing issues arise.

In any case the object is to make sure the seal is square in the case and you haven't got it positioned where the seal lip might run on any tram line that might have been worn on the pulley stub by the old seal.
Its is also advisable to "dull" the pulley stub seal surface with a scotchbrite pad or some 100 grit emery tape.
This gives the seal lip(s) something to "bite on" and explains why new components are often gas vapour blasted to aid seal bed down upon start up.

I use engine assembly lube which has a lithium grease base, but may just use engine oil to lube the component to avoid seal lip damage.

Dennis, Zedcars

Originally Posted by PhilipA

As long as it fits in the hole in the timing case square, it can really be fitted at any depth.
I am referring to a V belt 3.9 . I have measured the crank pulley vs the timing cover and really if its not pushed right through it is OK.

Regards Philip A

sorry Phillip, I was refering to rear crank, the main seal. Rave says fit dry.
I fitted it square just it's deeper seated than the one I took out
cheers, Mario

Originally Posted by zedcars

I use engine assembly lube which has a lithium grease base, but may just use engine oil to lube the component to avoid seal lip damage.

Dennis, Zedcars

Interesting about the lube,

Rave for Disco 1 V8 says "use engine oil" on the seal.

Then contradicts it in Rave Disco2 V8 says to "fit dry"