Travis Wallace
New member
I have a 1960 Johnson 40. The prop is original. It's splineless w/shear pin. The motor overrevs and the boat slows when I give it a lot of throttle. My first thought was that the hub was spun, but...do these vintage props even have a rubber hub? If it's driven with a shear oin, why would it it need a rubber hub?
I removed and reinstalled the lower unit immediately prior to this symptom developing, so I'm concerned that I did something wrong and stripped the drive shaft or prop shaft. I'm new to mechanical work and I'm not sure how to proceed. Any thoughts/advice would be most appreciated!
Thank you!
I removed and reinstalled the lower unit immediately prior to this symptom developing, so I'm concerned that I did something wrong and stripped the drive shaft or prop shaft. I'm new to mechanical work and I'm not sure how to proceed. Any thoughts/advice would be most appreciated!
Thank you!