1985 40 hp Johnson slips under load

oien

Recruit
Joined
Apr 8, 2009
Messages
2
Hello, I have been reading a lot in the forum about a spun hub on the prop when the motor spins up under load. It`s fine for about 15 minutes, seems like it`s getting worse after a while. Bought the prop one year ago new and should be fine. The problem is not very big yet, but getting nervous. Is it other things than a spun hub on the prop that can be the problem?
 

Vic.S

Rear Admiral
Joined
May 4, 2004
Messages
4,690
Re: 1985 40 hp Johnson slips under load

Mark the end of the propshaft and the prop.

Run it until it slips if the marks no longer line up then the prop hub is slipping!
 

oien

Recruit
Joined
Apr 8, 2009
Messages
2
Re: 1985 40 hp Johnson slips under load

Thanks, I will get a shop to change the hub. Talked to a pro that said that its not uncommon for even reasonable new props to spin on the hub. :rolleyes:
 
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