23:55
Faizan
Repairing a Johnson Evinrude 9.9 Outboard motor is needed to keep the motor running effectively. The water pump of the Johnson Evinrude motor should be rebuilt at least once a year, depending on how much you use the outboard motor. The Johnson Evinrude 9.9 outboard water pump is similar to most other outboard motors with the pump sitting on the top of the gear case. You can rebuild the water pump with a few common tools in about an hour or two.
Unfasten the nuts underneath the top lip of the Johnson 9.9 outboard motor lower gear case with an open-end wrench and remove the upper engine housing off the gear case. Place the gear case in a vise and unfasten the bolts on the top of the water pump with a socket wrench.
Lift the water pump housing off the top of the gear case and remove the gasket and impeller from inside the pump housing. Take the water spout off the top of the pump housing and remove the gasket and metal plate from the top of the gear case.
Remove the keyway from the top of the gear case and clean any remaining oil deposits from the top of the gear case as well as along the base of the motor shaft with a clean dry cloth. Clean the inside of the water pump housing of oil deposits with the clean dry cloth.
Apply a thin layer of marine grease on the top of the gear case as well as along the inside of the water pump housing. Place a new keyway in the top of the gear case and set a new metal plate and rubber gasket over the top of the gear case where the water pump sits.
Set the new impeller upside-down in the water pump housing and place a new rubber gasket around the bottom lip of the pump housing. Place the water pump housing assembly over the motor shaft and set the assembly on the top of the gear case.
Secure the water pump assembly to the top of the gear case with bolts and remove the gear case from the vise. Slide the upper motor housing over the top of the gear case and fasten the housing to the gear case with the nuts.
Unfasten the nuts underneath the top lip of the Johnson 9.9 outboard motor lower gear case with an open-end wrench and remove the upper engine housing off the gear case. Place the gear case in a vise and unfasten the bolts on the top of the water pump with a socket wrench.
Lift the water pump housing off the top of the gear case and remove the gasket and impeller from inside the pump housing. Take the water spout off the top of the pump housing and remove the gasket and metal plate from the top of the gear case.
Remove the keyway from the top of the gear case and clean any remaining oil deposits from the top of the gear case as well as along the base of the motor shaft with a clean dry cloth. Clean the inside of the water pump housing of oil deposits with the clean dry cloth.
Apply a thin layer of marine grease on the top of the gear case as well as along the inside of the water pump housing. Place a new keyway in the top of the gear case and set a new metal plate and rubber gasket over the top of the gear case where the water pump sits.
Set the new impeller upside-down in the water pump housing and place a new rubber gasket around the bottom lip of the pump housing. Place the water pump housing assembly over the motor shaft and set the assembly on the top of the gear case.
Secure the water pump assembly to the top of the gear case with bolts and remove the gear case from the vise. Slide the upper motor housing over the top of the gear case and fasten the housing to the gear case with the nuts.
Posted in: boating
