Only Cub Cadets - Engine blow by thru crank case vent

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amflyer

07-19-2022 08:32 AM

Engine blow by thru crank case vent

I have a 12 horse engine that does not smoke thru the exhaust. But after about 30 mins of use the engine will start to very lightly smoke thru the crank case vent. Is a rebuild in my future? Engine doe not seem to be using oil. Any suggestions would be appreciated.

R Bedell

07-19-2022 08:37 AM

Quote:

Is a rebuild in my future?

IF........you want your engine to operate correctly.

Quote:

Engine doe not seem to be using oil

:Huh:

West Valley G

07-19-2022 10:11 AM

Had same issue on K301 a while back. It really wasn't using oil either.
Did a rebuild on it and the problem is fixed. I would say a rebuild is
in the future somewhere. Or at least pull the head and the breather
and see what you can see.

Ken

RoseHillFarmIHCC125

07-27-2022 03:08 PM

I had blow by on my K301 as well. I bought a rebuild kit from the guy that saves tractors, and consulted this forum. Great group here, they got me running like a top again.

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