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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 28659
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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I have an Onan b43 16 horse. In the process of replacing a

Customer Question

I have an Onan b43 16 horse. In the process of replacing a worn out lovejoy be tween the motor and the pump. I think the motor got turned back wards. It now turns over very hard. Will turn over slowly with the plugs out.the starter seems to be laboring very hard and drains the battery rapidly. Any ideas?
Thanks, john
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.

I wonder if the pump is not loading the engine! I think you need to disconnect the pump and see why pump is hard to turn?

Expert:  Curtis B. replied 1 year ago.

Did you find problem? Maybe a valve problem if not the pump?