Yamaha 60hp 4 stroke screaching sound in gear

Jaco Scheepers

New member
Good day.

I have a screaching sound on the port outboard engine when I engage gear.

I have greased the shaft and the bush in the lower unit.
I have replaced the oil in the gearbox.
I have replaced the impeller.

Any one with some experience in this regard?
 

Guppigetta

New member
Hi Jaco. Does it only screech when you engage gears or all the time when in gear, like when you are travelling? If it is the latter then it could be prop shaft bearings are shot.
 

Jaco Scheepers

New member
Hi Guppygetta.

Its only when I engage gear and at low rpm.

As soon as I increase rpm, the screaching disapear.
 

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Guppigetta

New member
Maybe the dog clutches are worn. When you engage gears the dogs rub together before they go in. The faces of the dogs could be rough causing them to screech.
 
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