I'm stumped and frustrated ! U-joint bellows went bad on my '89 17' fiberglass Lazer so checked gimbal bearing and it was spinning rough and ordered a new one. Also ordered an alignment tool but that box came empty with a hole in the end. Rather than wait for the replacement tool, I pulled the bearing without checking the existing alignment, before installing the new bearing, made sure the tool (91-805475A1) fit nicely inside the engine shaft, installed the bearing and the tool marked 3/16" off to the left (from the behind the boat) and a tad high of the engine shaft, adjusted height and that centered the mark up and down but still way off to the left or in other words when I pull the tool out without turning it, there are spline and half circle marks in the grease on the right side of the end of the tool. I removed the front engine mount (to boat) bolts and moved the mount in quarter inch increments as much as 1" to the right with no change, then did the same to the left with no improvement. I checked the transom plates for movement and tightness to the hull and it checked OK, the transom is solid and shows no sign of the plates having movement from damage, etc.. The engine to transom plate bolts and spring pockets were tight allowing no movement right or left. I actually pulled the new bearing and reinstalled it cocked a little bit, right side ahead of the left...checked it when half way installed and the tool fit further into the shaft by about an inch leaving no grease marks on the end and would spin easily, pushed the bearing all the way in tight on the right side but not quite on the left and the tool would not insert that inch and still marks an 1/8" off to the left.
The motor is an '89? MCM 3.0 LTR *130*HP per the spark arrestor/carb cover ( 140 HP / 3.0ltr R / Mr / Alpha per the serial# 0C621830 search) Transom serial# 0C787685 and drive serial# 0C800668 are all listed on the carb cover, the serial numbers match those on the transom and drive. The motor has always had some serious shake at idle, don't know but suspect misalignment as the cause.
I'm lost as what to do next and hope some one has some answers or ideas.....please !
The motor is an '89? MCM 3.0 LTR *130*HP per the spark arrestor/carb cover ( 140 HP / 3.0ltr R / Mr / Alpha per the serial# 0C621830 search) Transom serial# 0C787685 and drive serial# 0C800668 are all listed on the carb cover, the serial numbers match those on the transom and drive. The motor has always had some serious shake at idle, don't know but suspect misalignment as the cause.
I'm lost as what to do next and hope some one has some answers or ideas.....please !