Timing Chain: Service and Repair
Timing ChainService Repair No - 12.65.13
Special Service Tools
Removal
CAUTION: Extreme cleanliness must be exercised when handling these components.
NOTE: Make sure the timing chain free length is on the tensioner run of the chain before releasing the tensioner locking device.
1. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
2. Remove the cover and disconnect the battery ground cable.
3. Remove the crankshaft front oil seal.
4. Remove the RH engine mount.
5. Remove the timing cover.
6. Position and lock the crankshaft.
Special Service Tools: Locking Tool, Crankshaft
7. To depress the chain tensioner piston and lock it in position with a 2mm, or less, diameter pin.
Apply an even pressure in a counter clockwise direction.
Lift the piston ratchet clip.
Install a pin with 2mm, or less, diameter.
8. CAUTION: Mark the components to aid installation.
CAUTION: Extreme cleanliness must be exercised when handling this component.
Remove the timing chain tensioner.
9. Remove and discard the camshaft bore plugs.
10. Install the camshaft alignment special tool.
Special Service Tools: Locking Tool, Camshaft
11. Using the special tool, lock the camshaft drive sprockets.
Special Service Tools: Locking Tool, Camshaft Tool
12. Remove and discard the 2 camshaft sprockets bolts
13. Remove the sprockets and the chain.
Installation
1. Install the chain and the sprockets.
2. CAUTION: Do not tighten the camshaft sprocket bolts at this stage.
CAUTION: Make sure that new bolts are installed.
Install the sprocket retaining Torx bolts to the camshafts.
3. CAUTION: Make sure that the area around the component is clean and free of foreign material.
CAUTION: Extreme cleanliness must be exercised when handling these components.
Install the timing chain tensioner.
Torque:
10 Nm
4. Release the chain tensioner
5. Using the special tool, lock the camshaft drive sprockets.
Special Service Tools: Locking Tool, Camshaft Tool
6. Tighten the exhaust camshaft drive sprocket.
Torque:
Stage 1. 75 Nm
Stage 2. 90°
7. Tighten the inlet camshaft drive sprocket.
Torque:
110 Nm
8. Remove the camshaft alignment special tool.
9. CAUTION: Make sure that the area around the component is clean and free of foreign material.
CAUTION: The plugs must be installed dry.
Install new camshaft bore plugs.
10. Remove the crankshaft locking tool.
11. Install the crankshaft front oil seal.
12. Install the timing cover.
13. Install the RH engine mount.
14. Connect the battery ground cable and install the cover.