mecury 25hp 1992 free spinning

[teelaw64]

when you shut off motor you can here it spinning prop makes clicking noise like bad bearing noise

 

[teelaw64]

Re: mecury 25hp 1992 free spinning

makes clicking noise even when using trolling motor u can hear it clicking

 

[GA_Boater]

Re: mecury 25hp 1992 free spinning

Put it in neutral before shutting it off. You're hearing the dog clutch clicking as the get worn down because the water flow is turning it backwards with no forward drive.

 

[racerone]

Re: mecury 25hp 1992 free spinning

If he leaves it in forward gear while trolling would the prop turn backwards ??

 

[GA_Boater]

Re: mecury 25hp 1992 free spinning

Mine does or if it happens to stall in a no wake a very low speeds, it does. Clickety click until I shift to neutral or the boat slows down enough.

He can find out by leaving it in forward while trolling and reduce speed. If the clicks slow down, that's exactly what's happening.

 

[oldman570]

Re: mecury 25hp 1992 free spinning

The water flow pressure from the forward movement of the boat will hit the back of the prop blades as cause the prop to move as if it were turning as it would in FWD. This is why Mercury designed the clutch dog as such. Otherwise the prop would be some what of a brake when the motor is shut down from WOT to idle, and would have a tendency to throw the people and contents in the boat forward. This and the water would want to come over the transom and into the boat more so on a fast shutdown. When towing a boat as such, it is my practices to put the control in the REV position so the air flow can not turn the prop at all, thus causing unneeded ware to the bearings and/or the clutch dog.Next time when following a boat down the highway, look at the prop and you will be able to see what happens if the motor is in NUT or FWD gear when being towed. Works the same way when in the water. Place the control in NUT and the clicking will stop.
JMO
Oldman570