1986 85hp force 856X6L---Oil Plug retap

J

Joe217

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May 31, 2025
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Case had a brass countersunk oil plug with hex stripped. Ended up having to remove the plug by drilling........... Ended up tapping with 1/8npt........... then installed a stainless plug....... Do you guys know what type of anti-seize I should use?
I sanded the case and I am trying to figure out what type of paint I should use.. what do you think about interlux 2000e as a primer? What should I use as a finishing coat? Is a clear coat needed? I am waiting for a pump kit to arrive. The oil was green, any suggestions on what type of oil i should use?20250627_183941.jpg20250629_201229(1).jpg20250629_202519.jpg20250629_202526.jpg
 
jerryjerry05

jerryjerry05

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Over the years of owning lots of Forces, this spot caused the most aggravation.
It would weep oil no matter what I did to seal it.
I tried paste sealers(plumbers goo) thread tape and a few others.
Never really did fid a way.
My thoughts on Anti-seize, Yes use it. In salt water it doesn't work as good as it should.
When installing the plug just don't over tighten it.
The best fix I had found was re-tap a larger hole and use a screw with a washer. It sticks out a bit but a little silicone smoothed out around it stopped things from catching on the end that sticks out.
Hope this helps
 
tg3690

tg3690

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Nice work on that tapping job. I use yellow teflon tape on the threads that is made for natural gas lines and is oil resistant. Has worked well for me so far. I also use a hex head socket when removing or tightening the plug. Seems to fit better and less likely to slip and bugger up the plug, unlike an allen wrench.
 
J

Joe217

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May 31, 2025
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Thanks for the informative replies. Bought a quart of interlux 2000e primer...... is a two part primer..... it cannot be applied on top of one part paints......... so.... I am going to have to sand the entire gear case and propeller all the way to bare metal. The blue/green gear oil seems to be quicksilver gear oil for motors over 75hp.
 
tg3690

tg3690

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Before I painted my LU I considered leaving it bare aluminum. I polished it up good with some Flitz and it looked good. After one use it turned an ugly black color. I guess it is not the kind of aluminum that can resist tarnishing very well. So it got painted.
 
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