Timing Chain: Service and Repair

Timing Chain and Sprockets Replacement

- Tools Required
- J 5825-A Crankshaft Gear Installer
- J 5590 Crankshaft Gear Installer

Removal Procedure





1. Remove the engine front cover and the crankshaft position reluctor ring.

Important: Once the engine front cover is removed, do not re-Install it. Always Install a NEW engine front cover.





2. Rotate the crankshaft until:
- The number one cylinder is at Top Dead Center (TDC) of the compression stroke.
- The timing marks on both sprockets line up.





3. Remove the camshaft sprocket bolts.
4. Remove the camshaft sprocket and the camshaft timing chain.





5. Use the J 5825-A in order to remove the crankshaft sprocket.
6. Remove the woodruff key (crankshaft balancer) if necessary.

Installation Procedure





1. Install the woodruff key (crankshaft balancer)into the crankshaft, if removed.





2. Align the keyway of the crankshaft sprocket with the woodruff key (crankshaft balancer).
3. Use the J 5590 and a hammer in order to Install the crankshaft sprocket.
4. Make sure that the number 1 piston is still at TDC of the compression stroke.
5. Align the timing marks on both sprockets. Look to ensure that the crankshaft sprocket alignment mark is in the 12 o'clock position.





6. Install the camshaft sprocket and the timing chain. The camshaft sprocket alignment mark must be in the 6 o'clock position.

Notice: Refer to Fastener Notice in Service Precautions.

7. Install the camshaft sprocket bolts.
- Tighten the bolts to 25 Nm (18 ft. lbs.).
8. Be sure to align the camshaft and the crankshaft sprocket alignment marks.
9. Install the crankshaft position sensor reluctor ring and the engine front cover.