Removal and disassembly
Note: Before draining engine oil and engine coolant, inspect engine oil and coolant leakage between the water pump and crankcase. If engine oil is leaking, visually inspect the oil seal and O-ring. If engine coolant is leaking, visually inspect the mechanical seal and seal washer. (8-15)
- Remove the secondary gear case cover. (3-6)
- Drain the engine coolant. (2-20)
- Drain the engine oil. (2-17)
- Remove the water outlet pipe mounting bolts.
- Disconnect the water hoses.
- Remove the water pump 1 and disconnect the water hose 2.
- Remove the water pump cover 3.
- Remove the impeller securing bolt by holding the impeller with a water pump pliers.
- Remove the mechanical seal ring 4 and rubber seal 5 from the impeller.
- Remove the impeller shaft 6, washer 7 and O-ring 8.
- Remove the mechanical seal with the special too l.
- 09921-20240: Bearing remover set (12 mm)
Note: If there is no abnormal condition, the mechanical seal removal is not necessary.
Caution: The removed mechanical seal must be replaced with a new one.
- Remove the oil seal 9.
Note: If there is no abnormal condition, the oil seal removal is not necessary.
Caution: The removed oil seal must be replaced with a new one.
Inspection
Mechanical seal
- Visually inspect the mechanical seal for damage, with particular attention given to the sealing face.
- Replace the mechanical seal that shows indications of leakage. Also replace the seal ring if necessary.
Oil seal
- Visually inspect the oil seal for damage, with particular attention given to the lip.
- Replace the oil seal that shows indications of leakage.
Impeller shaft journal
- Visually inspect the journal for damage or scratch.
- Replace the water pump body if necessary.
Seal washer
- Visually inspect the seal washer for damage, with particular attention given to the sealing face.
- Replace the seal washer that shows indications of leakage.
Case
- Visually inspect the case for damage or scratch.
- Replace the case if necessary.
Reassembly and installation
- Install the oil seal with the special tool.
- 09913-70210: Bearing installer set (∅22)
Note: The stamped mark on the oil seal faces mechanical seal side.
- Apply a small quantity of the SUZUKI SUPER GREASE "A" to the oil seal lip.
- 99000-25010: SUZUKI SUPER GREASE "A" or equivalent
- Install the new mechanical seal using a suitable size socket wrench.
Note: On the new mechanical seal, the sealer А has been applied.
- Apply SUZUKI SUPER GREASE "A" to the impeller shaft and O-ring.
Caution: Use the new O-ring to prevent engine oil leakage.
- 99000-25010: SUZUKI SUPER GREASE "A" or equivalent
- Install the impeller shaft 1, washer 2 and O-ring 3 to the water pump body.
- Install the rubber seal 4 into the impeller.
- After wiping off the oily or greasy matter from the mechanical seal ring, install it into the impeller.
Note: The paint marked side В of mechanical seal ring faces the rubber seal.
- Install the washer 5 and seal washer 6 onto the impeller securing bolt 7.
Note: The metal side C of seal washer and the curved side D of washer face the impeller securing bolt head.
- Install the impeller 8 and its securing bolt onto the shaft.
- Tighten the impeller securing bolt to the specified torque.
- Impeller securing bolt: 8 Nm (0.8 kgf·m, 6.0 lb·ft)
Note: Before installing the impeller securing bolt, apply a small quantity of the THREAD LOCK to it.
- 99000-32050: THREAD LOCK "1342" or equivalent