Water Pump

COOLING SYSTEM 4-11

NOTE

○The impeller and water pump shaft have a left-handed thread, therefore they must be turned clockwise [A] to remove.

• Shift the transmission into 1st gear.
While applying the rear brake, remove the impeller [B].

• Pull the water pump housing [A] and gasket out of the right crankcase. Turn the water pump shaft [B] clockwise, and remove it.

Water Pump Installation

• When installing the water pump shaft or impeller, shift the transmission into 1st gear and apply the rear brake.

• Apply silicone sealant to the area [A] where the mating surface of the crankcase contacts the water pump hous­ing gasket.

Sealant - Kawasaki Bond (Silicone Sealant): 56019-120

• Apply high temperature grease to the lips of the water pump housing oil seal.

• Turn the water pump shaft or impeller counterclockwise, and tighten them.

Torque -Water Pump Shaft: 25 N-m (2.5 kgf-m, 18 ft-lb)

Water Pump Impeller: 9.8 N-m (1.0 kgf-m, 87 in-lb)

• Be sure to install the water pipe O-rings [A], and apply high temperature grease to them.

• Install the water pump cover with the water pipe, being careful of the two knock pins [B].

Torque-Water Pump Cover Bolts: 11 N-m (1.1 kgf-m, 95 in-lb)

Mechanical Seal Inspection

• Visually inspect the mechanical seal.

• If any one of the parts is damaged, replace the mechani­cal seal as a unit.

OThe sealing seat and rubber seal may be removed easily by hand.

[A] Impeller Sealing Seat Surface

[B] Rubber Seal

[C] Mechanical Seal Diaphragm

Water Pump Housing Disassembly