66. Timing Chain and Sprocket Installation

Timing Chain and Sprockets Installation
^ Tools Required
- J 41478 Crankshaft Front Oil Seal Installer
- J 41665 Crankshaft Balancer and Sprocket Installer





1. Install the key into the crankshaft keyway, if previously removed.





2. Tap the key (122) into the keyway until both ends of the key bottom onto the crankshaft.





3. Install the crankshaft sprocket (207) onto the front of the crankshaft. Align the crankshaft key with the crankshaft sprocket keyway.





4. Use the J 41478 (1) and the J 41665 (2) in order to install the crankshaft sprocket.Install the sprocket onto the crankshaft until fully seated against the crankshaft flange.
5. Rotate the crankshaft sprocket until the alignment mark is in the 12 o'clock position.





6. Notice: Refer to Fastener Notice in Service Precautions.

Install the timing chain dampener (232) and bolts (231).
^ Tighten the timing chain dampener bolts to 25 Nm (18 ft. lbs.).





7. Important:
^ Properly locate the camshaft sprocket onto the locating pin of the camshaft.
^ The sprocket teeth and timing chain must mesh.
^ The camshaft and the crankshaft sprocket alignment marks MUST be aligned properly.Position the camshaft sprocket alignment mark in the 6 o'clock position.

Install the camshaft sprocket (205) and timing chain (208). If necessary, rotate the camshaft or crankshaft sprockets in order to align the timing marks.
8. Install the camshaft sprocket bolts (206).
^ Tighten the camshaft sprocket bolts to 25 Nm (18 ft. lbs.).





9. Inspect for proper alignment of the camshaft and crankshaft sprocket timing marks (1, 2).