Oil Leak

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Clifford Jay Lockrow
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Oil Leak

Post by Clifford Jay Lockrow » Fri Jun 28, 2013 12:08 pm

My engine is new with about 125 miles on it. I have an oil leak from the bolts that are in the boss that are on the left side of the engine (distributor side) these are plugs for the oil line that runs the length of the engine. There are two bolts in the front, two between the oil pump and dizzy and of course the last one is where the oil guage attaches. The bottom ones started to leak profusely for no reason. What I have done is this. I backed off each bolt about two turns. Took some cotton string coated with permatex and wound it around the bolt just under the head of the bolt. Tightened it up and so far it is holding. Has anyone else ever had this problem? It was oozing out of there pretty good and covering the garage floor. Did someone leave out a gasket or somethig? Anyone any ideas????? Thanx

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Steve Simmons
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Re: Oil Leak

Post by Steve Simmons » Fri Jun 28, 2013 12:46 pm

I installed those plugs with Permatex Aviation sealer. It's a gooey black sealer that never hardens. They haven't leaked a drop since the rebuild several thousand miles ago. Other areas of the engine aren't so dry of course...
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Rick Waters
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Re: Oil Leak

Post by Rick Waters » Wed Jul 03, 2013 9:41 pm

Whatever you do to solve this problem, make sure that the plugs will not back out, for if they do, your engine will lose all of it's oil in short order.

Are not these tapered pipe threads? I wonder how the factory sealed the threads?
Rick Waters, TC 7881 in Vancouver

Owned since 1988, Driven many happy miles!

Eric Worpe
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Re: Oil Leak

Post by Eric Worpe » Fri Jul 26, 2013 2:29 am

I believe the original bolts had a short unthreaded shank which allowed the bolt to both seal and lock itself when screwed in due to the interference fit.

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