Lostfisher
Petty Officer 2nd Class
- Joined
- Nov 2, 2009
- Messages
- 147
One of my buddies just bought a new,used boat. with a 75 hp 1962 johnson on it. He is having a problem with the lower unit on the motor. He will be driving between 5-15MPH and all of the sudden he hears a bang and his boat feel like it is being hit from behind, as if he were in a bumper car.. I thought maybe it was the prop slipping so I scored a few lined in the prop hub and the prop itself. He took the boat back and gave me a call yesterday telling me it was still happening and he checked the prop and the lines still match. Does anyone know what this could be. I am thinking the clutch dog is slipping or something is going on in the gears.