Timing Chain and Sprocket
INSTALLATION PROCEDURE^ Tools Required
- J 36660 Torque Angle Meter
1. Turn the crankshaft so that the number one piston is at top dead center.
2. Turn the camshaft so that the timing mark is straight down (with the sprocket temporarily installed).
3. Assemble the timing chain on the sprockets. Ensure that the timing marks are in the closest together position.
4. Install the timing chain and the crankshaft sprocket.
5. Install the camshaft sprocket.
6. Install the camshaft sprocket bolt.
^ Tighten the bolt to 100 Nm (74 ft. lbs.). Use the J 36660 in order to tighten the bolt an additional 90°.
NOTICE: This bolt is designed to permanently stretch when tightened. The correct part number fastener must be used to replace this type of fastener. Do not use a bolt that is stronger in this application. If the correct bolt is not used, the parts will not be tightened correctly. The system or the components may be damaged.
NOTICE: Refer to Fastener Notice in Service Precautions.
7. Install the timing chain damper.
8. Install the timing chain damper bolt.
^ Tighten the bolt to 22 Nm (16 ft. lbs.).
9. Install the front cover. Refer to Engine Front Cover Replacement.
REMOVAL PROCEDURE
1. Remove the front cover. Refer to Engine Front Cover Replacement.
2. Align the timing marks on the sprockets. Position the sprockets as close together as possible.
3. Remove the timing chain damper.
4. Remove the camshaft sprocket bolt.
5. Remove the camshaft sprocket.
6. Remove the timing chain.
7. Inspect the following components:
^ Timing chain
^ Sprockets
^ All components for wear and/or damage