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Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 10593
Experience:  40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.
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Changed the water pump, bottom of motor won't go back on.

Customer Question

Changed the water pump, bottom of motor won't go back on. What is the trick?
Submitted: 7 months ago.
Category: Boat
Expert:  Tan replied 7 months ago.

Hello. My name is Tan.

Are you turning the flywheel or prop shaft while pushing the lower unit up? The lower unit has to be in fwd gear. Along with the control so the shift shaft aligns correctly.

The splines of the driveshaft have to align for the lower unit to go up all the way.

Post back with questions.

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