I've got a 79 Bayliner 17ft with a mercusier 140 Power Trim (#5199784}. The vert drive shaft sheared just below the upper splines. The splined part is still in upper unit. I figure to replace the lower unit but I'm not shure about what will match up.
Also I havent been able to find out the gear ratio on mine.
I think I can perform the repair with a little help. I welcome any advise and/or tips.
Thanks in advance
HOPING TO BE BOATING SOON!!!!
This would be from my experience with farm equipment. Splines can wear and somewhat lock together because they can twist so part of the alludes are lined up and farther down the shaft after a twist the inner splined shaft does not line up with the outer part. Not sure that is worded for the best u understanding but if it is wore and broken the way I am thinking it will not be much fun to take apart.
I managed to get all the bellows removed. Took care of the water, gimbel bearing and u-jounts. The shift cable is in very good condition so I plan to reuse. The cable bellows was in the worse shape.
Today I start installing the new QuickSilver bellows.
I managed to locate a good used alpha-1, Gen-1 Lower unit. I should get by weeks end.
I recieved the lower unit I ordered, got the bellows installed and got everything put back together. Test floated with no water leaks and she fired right up and ran great.
Thanks for the advice everyone.