Propeller shaft spinning when in neutral

[sailsmanship]

My starboard inboard prop shaft spins about 40 r.p.m. when in neutral while the port side does not. Could this be a sign of something going bad?

 

[Don S]

Re: Propeller shaft spinning when in neutral

It's usually normal "Out of the Water" with no load against the prop. If this happens in the water, you have a tranny problem.

 

[sailsmanship]

Re: Propeller shaft spinning when in neutral

This is in the water. If I shut down both engines, the starboard (bad side)shaft is hard to turn by hand, but you can, where as the port side turns quiet easy. Any suggestions where to look for a problem first?

 

[Don S]

Re: Propeller shaft spinning when in neutral

Any suggestions where to look for a problem first?

You haven't given a clue to what you are working on.
Look at the sticky at the top of this forum.

 

[sailsmanship]

Re: Propeller shaft spinning when in neutral

It is a 1989 Borg Warner Velvet Drive Model 10-17-006 , 1.52 : 1 Ratio
attached to a 5.7 Mercruiser

 

[RJLeuwen]

Re: Propeller shaft spinning when in neutral

The problem is in the tranny, most likely a warpped clutch plate.

RJ