slredstorm62
Seaman
- Joined
- Jul 28, 2009
- Messages
- 66
my 87 mercruiser has a knock but i think its in the outdrive. possible u-joint? can i check u joints while in the water or do i have to pull the outdrive off? and would loose u-joints make a constant knocking noise or is the driveshaft only move when boat is put in gear