Timing Chain: Service and Repair

Removal
1. Drain the cooling system and crankcase. Remove oil pan and radiator.
2. Remove the cylinder front cover and water pump, drive belt, and camshaft sprocket. Refer to Timing Cover: Service and Repair.
3. Use Clutch Aligner T71P-7137-H or equivalent to remove the crankshaft sprocket.

Installation
1. Align the keyway in the sprocket with the key. Then, slide the gear onto the shaft, making sure that it seats tight against the spacer.
2. Install cab retaining bolt and washer. Tighten to specification.
3. Check the camshaft end play. If not within specifications, replace the thrust plate.

Installing Crankshaft Gear:

4. Align the keyway in the crankshaft with key in the crankshaft, and align the timing marks. Install the gear using the tool shown.
5. Install the cylinder front cover. Install the oil pan and radiator. Refer to Timing Cover: Service and Repair, and Engine Lubrication: Oil Pan: Service and Repair.
6. Fill and bleed the cooling system and crankcase.
7. Start the engine and adjust the ignition timing.
8. Operate the engine at fast idle and check all hose connections and gaskets for leaks.