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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 27062
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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I change lower oil seal on vert shaft on 20HP Kolher command

Customer Question

I change lower oil seal on vert shaft on 20HP Kolher command pro. Smoke now comes from top of engine on shutdown. Smell like oil is burning while running. 2002 model 914 hours. Is there an oil seal on top. Instead of having a dealer rebuild, should I just replace engine?
Submitted: 6 months ago.
Category: Small Engine
Expert:  Curtis B. replied 6 months ago.

Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!

Expert:  Curtis B. replied 6 months ago.

There is a oil seal on the top, under the flywheel. It can be leaking. or a valve cover gasket will also leak and show as smoke on top when shutdown/ As for replacement, you would have to go to a different series of engine.

Customer: replied 6 months ago.
Curtis, no oil leak around valve covers. My next step will be to pull the flywheel and replace that seal. ANy tricks to pulling the fly wheel? Would you happened to know the seal P/N?
Expert:  Curtis B. replied 6 months ago.

KH-24-032-19-S---- Seal-Oil

Expert:  Curtis B. replied 6 months ago.

Flywheel removal. link above.

Expert:  Curtis B. replied 6 months ago.

Service manual link above.

Customer: replied 6 months ago.
Ok thanks for the help Curtis.
Expert:  Curtis B. replied 6 months ago.

Please use the 5 star rating system to close the question and get me credit! Thanks.