Oil Seepage - this bolt -'88 VR

[Peder_y2k]

'88 VR - slow oil seepage at this bolt head. Never been removed and still tight. What is the fix?

-Pete, in Tacoma WA USA

[dingy]

That is the outer main bolt on the right side crank bearing.

You can remove one bolt at a time, clean all surfaces involved. Then apply seaer and re torque bolt. There are not any seals on those bolts between case & bolt.

Gary

[skydoc_17]

Hey Pete,

Dingy is absolutely correct. Because the bolt is metal, and the case is aluminum, the dissimilar metals expand and contract at two different rates. The oil "wicks" down the threads, and out from under the bolt head. As dingy said, remove one bolt at a time, I use Carb. Cleaner to get into the threaded case, I wrap a shop towel around the straw from the Carb. Cleaner. (don't get sloppy with the Carb. Cleaner or it will remove paint and the clear coat on the case) Coat the bolt threads with the blue gasket sealer, and retighten the bolt. It is surprising how much nicer your engine will look with this point of leakage corrected.

Earl

[Prairiehammer]

EARL!

How the heck have you been? Haven't noticed you around here much lately.

How is Jean doing?