right behind the prop, on the same shaft
The impeller on a 9.8 Mercury outboard boat motor can be easily changed. Remove the retaining bolt. The impeller will come off. Reverse the process to install the new impeller.
The water pump impeller on a 7.5 hp Mercury outboard, is located on top of the gearcase, and is driven by the driveshaft.
What year? It may require special tools.
Synthetic Rubber
You will probably have to drop the lower end of the outboard. Its sound hard but really it is usually quite simple. The pump is nothing more than rubber impeller on a brass collet.
To replace the impeller on a 35hp Mercury outboard motor, first, ensure the engine is off and disconnect the battery. Remove the lower unit by unscrewing the bolts and disconnecting the shift linkage. Take out the old impeller from the water pump housing, clean the area, and then install the new impeller, ensuring it is oriented correctly. Reassemble the lower unit and reconnect the battery before testing the motor.
To change the water pump impeller on a 2001 Mercury 115 HP outboard, first, remove the lower unit by disconnecting the shift linkage and unbolting the lower unit from the powerhead. Once the lower unit is removed, take off the water pump cover by unscrewing the screws and carefully lift the old impeller out. Install the new impeller, ensuring it is oriented correctly, and reassemble the water pump cover and lower unit. Finally, reconnect the shift linkage and secure the lower unit back to the powerhead.
Propeller is external (outboard motor on a boat) Impeller is internal (vehicle water pump).
The impeller on an ESKA outboard motor is typically located within the water pump assembly, which is situated at the lower unit of the motor. To access it, you usually need to remove the lower unit from the motor. The impeller is housed inside a plastic or metal housing that can be disassembled for maintenance or replacement. Proper care and regular checks of the impeller help ensure optimal cooling and performance of the outboard motor.
Change the water pump impeller, they get old and need replacing every 5 years or so depending on wear.
This is how to fix the impeller on a Chrysler 25 HP outboard motor. Disconnect the coupling that's on the outside of the leg, flip the housing and twist in impeller.
What year is Mercury Outboard with serial # 5863149