Cherokee 4WD L6-4.0L VIN S (1998)
3. Install the gasket and water pump. The silicone bead on the gasket should be facing the water pump. Also, the gasket is installed dry. Tighten
mounting bolts to 30 Nm (22 ft. lbs.) torque. Rotate the shaft by hand to be sure it turns freely.
4. Connect the radiator and heater hoses to the water pump.
5. Install power steering pump and bracket.
6. Position water pump pulley to water pump hub.
7. Install shroud and fan together and install four nuts to water pump hub studs. Tighten nuts to 27 Nm (20 ft. lbs.) torque.
8. Install and tighten upper fan shroud nuts to 4 Nm (31 inch lbs.).
9. Connect electric fan connector (if equipped).
CAUTION: When installing the accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to the water pump
rotating in the wrong direction.
10. Install and tension accessory drive belt.
11. Install upper radiator hose.
12. Fill cooling system with coolant and check for leaks.
13. Connect battery negative cable.
14. Start and warm the engine. Check for leaks.
REMOVAL-4.0L ENGINE (LHD/RHD)
1. Disconnect battery negative cable.
2. Drain the cooling system.
3. Disconnect electric cooling fan connector.
4. Remove electric cooling fan/shroud assembly (if equipped).
5. Remove viscous fan shroud bolts (2).
Fig.23 Water Pump Pulley Bolts
6. Loosen (but do not remove at this time) the four water pump pulley-to-water pump hub mounting bolts and the four viscous fan to idler pulley
nuts.
NOTE: The accessory drive belt must be removed prior to removing the fan (if installed at pump) or fan pulley.
7. Remove accessory drive belt.
8. Remove the four viscous fan to idler pulley nuts and remove the fan and shroud together.
CAUTION: After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored
horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
9. Remove the four water pump pulley bolts and remove the pulley.
