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Thanks for the reply. I did some more research and figured out that i had re-installed the shift cam upside down when I did all that work on it. Ironic because that cam accidentally falling off the bottom of the shaft was the reason I had to take the gear box apart in the first place. I did...
Recently acquired 1983 Mercury OB, 80 HP, S/N 6235449. Had to take apart the lower unit to reinstall the shift cam and replaced the tapered bearings and a few seals and o-rings while I was in there. When I reinstalled the lower unit with the control handle in fwd and the lower shift rod in...
QBhoy,flying scott, jimmbo. great minds think alike :cool:. I tested the impeller by hand right after I installed it and it rotated fine but something down there tightened up while it sat waiting on parts. I slid the water pump up the shaft and the drive shaft and prop shaft turned in sync...
Thanks for the replies. The lower unit is removed from the boat and clamped in a vice in my shop. That's where all this happened. The drive shaft and water pump are still attached to it (sticking out the top of the gear box). It's not just hard to move its stuck solid except for the slight...
1983 Mercury OB, 80 HP, S/N 6235449. I removed the lower unit and replaced the impeller. Before I reinstalled it I checked to see if it was in forward. When I put the shift shaft in forward gear. The prop will ratchet when turned clockwise but locks when turned ccw. It does the opposite when...
