Nissan 9.9b2 thrust problem

[KEIL]

Nothing wrong with the engine. When I accelerate the boat barley moves both forward and backward. When engaged in gear with the motor off the prop will spin. Is this a clutch problem or is there some sort of rubber or nylon gasket that works like a shear pin.

 

[racerone]

Try another prop.

 

[KEIL]

Don't think it is the prop is there any sort of shear pin mechanism?

 

[racerone]

Try another prop.

 

[pvanv]

You likely have a spun prop hub. No shear pin, but sheared rubber allows you to "limp" home. To test, either install a spare prop, or mark a radial line across the hub, and see if it has moved in relation to the splines after operating the prop.

 

[newb197]

Is supposed to spin when off in gear but should have some ratcheting feeling to it. How big is the boat?

 

[KEIL]

does have ratcheting small 14 ft alumincraft crappy jon jr.. Is the sheared rubber inside the prop.Does that mean I just need to get a new prop?I was barely able to limp home engine ran fine.

 

[pvanv]

A new prop is in order.