Water Pump

REMOVAL AND DISASSEMBLY

NOTE:
Be sure to drain the coolant before disassembly of the cooling system components.

1. Drain the engine oil

2. Remove:
•Water pump drive gear cover 1 
•Water pump drive gear 2
Water pump drive gear bolt 3 is locked with LOCTITE®.
•Spacer 4

3.  Remove:
• Water pump joint 1 
• O-rings 2

4.  Disconnect bypass hose 3

5. Remove:
• Radiator pipe 1
• Clutch cam shaft lever 2
• Clutch cover 3

5. Remove:
• Water pump cover 1
• O-ring 2
• Circlip 3
• Driven gear 4
• Dowel pins 5
• Circlip 6
• Impeller shaft 7

INSPECTION

1. Eliminate deposits from the impeller and water pump housing.

2. Inspect:

• Oil seal 1 
• O-ring 2 

Replace if worn or damaged.

3. Inspect:

• Impeller 1
• Driven gear 2 
Replace if cracked, worn or damaged.

ASSEMBLY AND INSTALLATION

1. Install: 
• Oil seal (Mechanical seal) 1 Use Water Pump Seal Installer (90890-04078) 2 and Handle (90890-04058).

2. Assembly: 
• Water pump Reverse the disassembly procedures.

Water Pump Cover: 10 Nm (1.0m-kg, 7.2ft-lb)

3. Install:
• Clutch cover Refer to CHAPTER 3 "ENGINE ASSEMBLY AND ADJUSTMENT"

• Water pump joint 1 (With new O-rings 2)

Water Pump Joint: 10Nm(1.0mkg, 7.2ft-lb)

4. Connect the bypass hose

5. Install: 
• Spacer 1
• Water pump drive gear 2
• Water pump drive gear cover 3 
• Radiator pipe 4 (With new O-ring)

Water Pump Drive Gear: 12Nm (1.2m.kg, 8.7ft-lb) LOCTITE®
Water Pump Drive Gear Cover: 8Nm (0.8 m-g, 5.8 ft-lb)