Crankshaft Gear/Sprocket: Service and Repair

REMOVAL
1. Remove the engine front cover.





2. Align the timing marks on the sprocket so that they are as close together as possible.
3. Remove the timing chain dampener.





4. Remove the camshaft sprocket bolt.
5. Remove the timing chain.
6. Remove the camshaft sprocket.

NOTE: If crankshaft sprocket does not come off easily, a light blow on the edge of the sprocket (with a plastic mallet) should dislodge the sprocket.

7. Remove the crankshaft sprocket.
8. Clean the timing chain.
9. Clean the sprockets.
10. Inspect all the components for wear or damage.
11. If the balance shaft timing has been disturbed.
12. Use the following steps if the pistons have been moved in the engine:
a. Turn the crankshaft in order to set the number one piston is at top dead center.
b. With the sprocket installed, turn the camshaft in order to have the timing mark straight down.

INSTALLATION
1. Install the timing chain onto the sprockets with the timing marks in their closest together position.
2. Install the timing chain and sprockets.
3. Install the camshaft sprocket bolt. Tighten the camshaft sprocket bolt to 100 Nm (74 ft. lbs.). Use the Torque Angle Meter in order to rotate the bolt 90 degrees.
4. Install the timing chain dampener.
5. Install the timing chain dampener bolt. Tighten the dampener bolt to 22 Nm (16 ft. lbs.).

NOTE: Rotate the engine two revolutions and check the timing marks. Ensure the marks are aligned.

6. Install the engine front cover.