Timing Chain: Service and Repair

REMOVAL
1. Disconnect negative cable from battery.
2. Remove the fan and shroud.
3. Remove the serpentine drive belt.
4. Remove the crankshaft vibration damper.
5. Remove the timing case cover.





6. Rotate crankshaft until the "0" timing mark is closest to and on the center line with camshaft sprocket timing mark (Fig. 89).
7. Remove the oil slinger from the crankshaft.





8. Remove the camshaft sprocket bolt and washer (Fig. 90).
9. Remove the crankshaft sprocket, camshaft sprocket and timing chain as an assembly.
10. Installation of the timing chain with the timing marks on the crankshaft and camshaft sprockets properly aligned ensures correct valve timing. A worn or stretched timing chain will adversely affect valve timing. If the timing chain deflects more than 12.7 mm (1/2 inch) replace it.

INSTALLATION
Assemble the timing chain, crankshaft sprocket and camshaft sprocket with the timing marks aligned (Fig. 89).
1. Apply Mopar Silicone Rubber Adhesive Sealant to the keyway in the crankshaft and insert the key. With the key in the keyway on the crankshaft, install the assembly on the crankshaft and camshaft.
2. Install the camshaft sprocket bolt and washer (Fig. 90). Tighten the bolt to 68 Nm (50 ft. lbs.) torque.
3. To verify correct installation of the timing chain, rotate the crankshaft 2 revolutions. The camshaft and crankshaft sprocket timing mark should align (Fig. 89).
4. Install the crankshaft oil slinger.
5. Replace the oil seal in the timing case cover.
6. Install the timing case cover and gasket.
7. With the key installed in the crankshaft keyway, install the vibration damper.
8. Install the serpentine drive belt.
9. Install the fan, hub assembly and shroud.
10. Connect negative cable to battery.