Timing Chain: Service and Repair

Timing Chain and Sprockets Replacement

^ Tools Required
- J 22102 Front Cover Aligner and Seal Installer
- J 42846 Crankshaft Protector Button

Removal Procedure





1. Remove the engine front cover.
2. Align the timing marks on the camshaft and crankshaft sprockets.
3. Remove the camshaft sprocket bolts.
4. Remove the camshaft sprocket and timing chain.





5. Install the J 42846 (1) into the end of the crankshaft.
6. Remove the crankshaft sprocket using a suitable three jaw puller.
7. Clean and inspect the timing chain and sprockets.

Installation Procedure





1. Use the J22102 in order to Install the crankshaft sprocket. Align the keyway of the sprocket with the crankshaft pin.
2. Remove the J22102.
3. Rotate the crankshaft until the crankshaft sprocket alignment mark is in the 12 o'clock position.





Important:
^ Install the camshaft sprocket with the alignment mark in the 6 o'clock position.
^ The sprocket teeth must mesh with the timing chain in order to prevent damage to the camshaft retainer.
^ Do not use a hammer to install the camshaft sprocket onto the camshaft. To do so may damage the camshaft.

4. Install the camshaft sprocket and timing chain.





5. Look to ensure that the crankshaft sprocket is aligned at the 12 o'clock position and the camshaft sprocket is aligned at the 6 o'clock position.

Notice: Refer to Fastener Notice in Service Precautions.

6. Install the camshaft sprocket bolts.
6.1. Tighten the camshaft sprocket bolts a first pass to 30 Nm (22 ft. lbs.).
6.2. Tighten the camshaft sprocket bolts a final pass to 30 Nm (22 ft. lbs.).
7. Install the engine front.