Timing Chain: Service and Repair
Timing Drive ComponentsRemoval
1. Remove the engine front cover.
2. Compress the timing chain tensioner and remove the tensioner.
1. Compress the timing chain tensioner.
2. Remove the bolts and timing chain tensioner.
3. Remove the right-hand timing chain guide.
4. Remove the timing chain.
5. Remove the bolts and the left-hand timing chain guide.
CAUTION: Do not rely on the Camshaft Alignment Plate to prevent camshaft rotation. Damage to the tool or the camshaft can occur.
If necessary, remove the bolts and the camshaft sprockets.
- Use the flats on the camshaft to prevent camshaft rotation.
Installation
1. Remove the Camshaft Alignment Plate 303-376.
2. CAUTION: Do not rotate the camshafts. Damage to the valves and pistons can occur.
If the camshaft sprockets were not removed, use the flats on the camshafts to prevent camshaft rotation and loosen the sprocket bolts.
3. If removed, install the camshaft sprockets and the bolts. Do not tighten the bolts at this time.
4. Install the left-hand timing chain guide and bolts.
5. Install the timing chain.
6. Install the right-hand timing chain guide.
7. Install the timing chain tensioner and release the piston.
1. Install the timing chain tensioner and the bolts.
2. Remove the drill rod to release the piston.
8. Install the Camshaft Alignment Plate.
9. CAUTION: Do not rely on the Camshaft Alignment Plate to prevent camshaft rotation. Damage to the tool or the camshafts can result.
Using the flats on the camshafts to prevent camshaft rotation, tighten the camshaft drive gears.
10. Install the front cover.