Dennis1979
Recruit
- Joined
- Mar 7, 2013
- Messages
- 1
I recently bought a 1977 mercury 70 hp. Had it on the water several times with no problems. The last time I had the motor on the water (w/ aluminum V bottom fishing boat) I had several people in the boat and the water was rough that day. I plained out running about 25- 30 according to the GPS, the boat stopped with a sudden rev of the motor like I spun a hub. After taking it to shop it was confirmed that the drive shaft was wore out at the splins. My question is I am replacing the drive shaft, should I be worried about the splines in the motor or the crank. If I replace the drive shaft will I continue to have problems with spinning the shaft out?