Timing Chain & Sprockets Replacement

REMOVAL
1. Remove timing chain cover and gasket using extreme caution to avoid damaging oil pan gasket.
2. Aline camshaft and crankshaft centerline. Remove camshaft sprocket attaching bolt and remove timing chain and camshaft sprockets.

Crankshaft Sprocket Removal:

3. Use Puller 6444 and Jaws 6820 to remove crankshaft sprocket.

INSTALLATION

Crankshaft Sprocket Installation:

1. Line up key in crankshaft with keyway in sprocket, press on crankshaft timing sprocket, use tools C-3688, C-3718 and MB-990799, seat sprocket against crankshaft shoulder.
2. Turn crankshaft to line up the timing mark with the crankshaft and camshaft centerline.
3. Put chain on camshaft sprocket.

Alignment Of Timing Marks:

4. Take chain and camshaft sprocket, align timing marks and install chain and cam sprocket onto crankshaft sprocket. Check to see that timing marks are on the centerline of the crankshaft and camshaft centerline.
5. Install the camshaft bolt. Tighten the bolt to 61 Nm (45 ft. lbs.) torque.
6. Check camshaft end play. The end play should be 0.051-0.152 mm (0.002-0.006 inch) with a new thrust plate and up to 0.254 mm. (0.010 inch) with a used thrust plate. If not within these limits install a new thrust plate.
7. Install timing chain cover.