Crankshaft seal 12 HP sea King

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OLCAH
Posts: 257
Joined: Wed Mar 11, 2015 9:38 pm

Crankshaft seal 12 HP sea King

Postby OLCAH » Tue Feb 13, 2018 3:03 pm

Working on a 1956 Sea King 12 HP and opened the crankcase to replace the lower crankshaft seal to prevent future water leakage. The crankshaft is lightly rusted and slightly pitted in the seal area. Other than that seal area the motor internals look fine. It ran well when I tried it on the water in September.

If bearings were needle type I would be looking for a crankshaft but this motor has bronze bearings. I am thinking of just taking fine wet or dry to smooth the seal area up a bit and then put in a new seal. Anyone have experience with this approach? I would appreciate any advice.

Thank you.

FrankR
Posts: 3244
Joined: Tue Mar 10, 2015 6:32 pm
Location: Florida

Re: Crankshaft seal 12 HP sea King

Postby FrankR » Tue Feb 13, 2018 8:10 pm

Should be ok if the pits aren't too bad. Too bad, I just took a crank to the scrap yard last week. Yeah, I know, don't ever do that.

OLCAH
Posts: 257
Joined: Wed Mar 11, 2015 9:38 pm

Re: Crankshaft seal 12 HP sea King

Postby OLCAH » Wed Feb 14, 2018 8:51 am

I will give it a try. Thank you Frank.


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