11 51 000 Removing and installing/replacing water pump (N62/N62TU)

Follow instructions for working on cooling system, refer to 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM. .

Drain and dispose of coolant from radiator.

Installation: 

Vent cooling system and check for leaks. Refer to 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR LEAKS .

Remove fan cowl.

Remove electric fan, refer to 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (N62) .

Remove alternator drive belt. Refer to 11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU) .

Unlock and detach plug connections (1).

Release screw and remove vacuum line holder.

Unlock and detach all coolant hoses on water pump.

Release screws and remove belt pulley (2).

Fig 1: Releasing Screws And Removing Belt Pulley

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Remove vibration damper. Refer to 11 23 010 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER (N62) .

Release screws and remove water pump (1). Refer to 11 51 000 REMOVING AND INSTALLING WATER PUMP (N62) .

Fig 2: Releasing Screws And Removing Water Pump

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Installation: 

1. Check adapter sleeve (1) for correct seating and damage; replace if necessary.
2. Clean sealing faces (2).

Fig 3: Cleaning Sealing Faces

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Installation: 

Clean sealing surfaces.

Replace sealing rings (1 and 2).

Fig 4: Replacing Sealing Rings

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Installation: 

Replace both coolant pipes (1) and coat sealing surfaces with anti-friction rubber coating.

Thin coolant pipe (1) only with water-cooled alternator.

Fig 5: Replacing Both Coolant Pipes

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1. Convert coolant thermostat.
2. Modify coolant temperature sensor.

Assemble engine.

Check cooling system for leaks and correct operation.