67. Timing Chain and Sprocket Installation

Timing Chain and Sprocket Installation


Tools Required
* EN 46330 Timing Chain Tensioner Retaining Pin
* J 41478 Crankshaft Front Oil Seal Installer
* J 41665 Crankshaft Balancer and Sprocket Installer
* J 45059 Angle Meter



Installation Procedure





1. Install the crankshaft sprocket key (1) if removed.




2. Tap the key (1) into the key way until both ends of the key bottom onto the crankshaft (2).




3. Install the crankshaft sprocket (1) onto the front of the crankshaft. Align the crankshaft key with the crankshaft sprocket key way.




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. Compress the timing chain tensioner guide (2) and install the EN 46330 (1).




6. Install the timing chain tensioner (2) and bolts (1).

Tighten the bolts to 25 N.m (18 lb ft).





7. Position the camshaft sprocket (2) so the timing mark is in the 6 o'clock position.
Important: The sprocket teeth and timing chain must mesh.



Important: The camshaft and the crankshaft sprocket alignment marks MUST be aligned correctly.



8. Install the camshaft sprocket (2), timing chain (3) and bolt (1).




9. Inspect the sprockets for correct alignment. The mark on the camshaft sprocket (1) should be located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be located in the 12 o'clock position.




10. Remove the EN 46330 (1).




11. Tighten the camshaft sprocket bolt.

Tighten a first pass to 75 N.m (55 lb ft).
Tighten an additional 50 degrees using J 45059 .