Timing Gear Housing
REMOVAL1. Disconnect the battery negative cables.
2. Raise vehicle on hoist.
3. Remove the oil pan and suction tube.
4. Partially drain engine coolant into container suitable for re-use.
5. Lower vehicle.
6. Remove radiator upper hose.
7. Disconnect coolant recovery bottle hose from radiator filler neck and lift bottle off of fan shroud.
8. Disconnect windshield washer pump supply hose and electrical connections and lift washer bottle off of fan shroud.
9. Remove the fan shroud-to-radiator mounting bolts.
10. Remove viscous fan/drive assembly. The fan drive nut has left handed threads. Refer to Cooling System for the correct procedure.
11. Remove cooling fan shroud and fan assembly from the vehicle.
12. Remove the accessory drive belt. Refer to Drive Belts, Mounts, Brackets and Accessories for the correct procedure.
Fig. 114
13. Remove the cooling fan support/hub from the front of the engine (Fig. 114).
14. Raise the vehicle on hoist.
Fig. 115
15. Remove the crankshaft damper (Fig. 115).
16. Lower the vehicle.
Fig. 116
17. Remove the gear cover-to-housing bolts and gently pry the cover away from the housing (Fig. 116). taking care not to mar the gasket surfaces.
18. Remove the fuel injection pump. Refer to Powertrain Management for the correct procedure.
19. Disconnect the camshaft position sensor connector.
20. Raise the tappets and remove the camshaft.
Fig. 117
21. Remove the gear housing and gasket (Fig. 117).
22. Clean the gasket material from the cylinder block.
INSTALLATION
1. Install a new gasket and the gear housing (Fig. 117). Tighten the bolts to 24 Nm (18 ft. lbs.) torque.
2. Connect the camshaft position sensor connector.
3. Install the injection pump. Refer to Powertrain Management for the correct procedure.
Fig. 118
4. Install the camshaft. Align the crankshaft, camshaft, and injection pump gear marks as shown in (Fig. 118).
5. If a new housing is installed, the camshaft position sensor must be transferred to the new housing.
6. Obtain a seal pilot/installation tool from a crankshaft front seal service kit and install the pilot into the crankshaft front oil seal.
7. Apply a bead of Mopar Silicone Rubber Adhesive Sealant or equivalent to the gear housing cover. Be sure to surround all through holes.
Fig. 119
8. Using the seal pilot to align the cover (Fig. 119), install the cover to the housing and install the bolts. Tighten the bolts to 24 Nm (18 ft. lbs.) torque.
9. Remove the seal pilot.
10. Raise the vehicle.
11. Trim any excess gear housing gasket to make it flush with the oil pan rail.
12. Using a new gasket, install the oil pan and suction tube.
13. Install the crankshaft damper (Fig. 115) and tighten bolts to 125 Nm (92 ft. lbs.) torque.
14. Lower vehicle.
15. Install the fan support/hub assembly (Fig. 114) and tighten bolts to 24 Nm (18 ft. lbs.) torque.
16. Install the accessory drive belt. Refer to Drive Belts, Mounts, Brackets and Accessories for the correct procedure.
17. Install the cooling fan and shroud together. Start fan nut and fan shroud-to-radiator bolts by hand.
18. Tighten fan drive nut to 57 Nm (42 ft. lbs.) torque.
19. Tighten fan shroud-to-radiator bolts to 11 Nm (95 in. lbs.) torque.
20. Install the windshield washer reservoir to the fan shroud and connect the washer pump supply hose and electrical connection.
21. Install the coolant recovery bottle to the fan shroud and connect the hose to the radiator filler neck.
22. Install the radiator upper hose and clamps.
23. Add engine oil.
24. Add coolant.
25. Connect the battery cables.
26. Start engine and inspect for leaks.