How Do You Change An Impeller Outboard?
The impeller in an outboard is a rubber turbine that allows the water pump to circulate water through the motor to keep it cool. The impeller creates a vacuum in the pump body, drawing water through the engine body. Changing the impeller is a common maintenance procedure, as, over time, it can become cracked and worn. Any home mechanic can tackle this project in an afternoon. Step 1 Locate the four mounting screws on the bottom of the motor holding the lower shroud on. Use the screwdriver to remove the screws and disconnect the shroud. Step 2 Slide the lower shroud off of the motor and then clamp it in the vice. Locate the bell-shaped water pump housing and use the socket wrenches to remove the mounting bolts around the corners. Slide the housing up and off of the transmission shaft and use a set of pliers to pull the impeller out of the housing. Step 3 Place the new impeller into the housing and slide the housing back down the transmission shaft. Tighten the housing down with the moun
