Camshaft Timing Chains

Camshaft Timing Chains

Special tools, testers and auxiliary items required

• Locking Pin (T40071)

Removing

• The transmission is removed.

- Remove timing chain lower cover. Refer to => [ Lower Timing Chain Cover ] Lower Timing Chain Cover.

- Remove the cylinder head covers. For the left side, refer to => [ Left Cylinder Head Cover ] Left Cylinder Head Cover and for the right side, refer to => [ Right Cylinder Head Cover ] Right Cylinder Head Cover.

- Remove the affected camshaft timing chain from the camshafts. Refer to => [ Camshaft Timing Chains, Removing from Camshafts ] Camshaft Timing Chains, Removing From Camshafts.








If the running direction is reversed on a used camshaft timing chain, it could be destroyed.

• Paint arrows to mark the left and right camshaft timing chain running direction so they can be installed again. Do not mark the camshaft timing chain with a punch, notch or something similar.

- Remove the (T40071) and the left camshaft timing chain.

- Remove the bolts - 1 and 2 - and the right chain tensioner.






- Press the timing mechanism chain tensioner guide rail in the direction of the - arrow - and secure the chain tensioner using a (T40071).






- Remove the drive chain sprocket bolt - 1 -.

- Remove the drive chain sprocket and remove the right camshaft timing chain.

Installing

• Tightening specifications, refer to => [ Camshaft Timing Chains Overview ] Camshaft Timing Chains Overview.

• If the tensioning element was removed from the chain tensioner, note installation position: Hole in housing floor faces toward chain tensioner, piston faces toward tensioning rail.

• Replace the bolts which are being tightened with an additional turn.

Risk of damaging valves and piston crowns.

• If camshafts are rotated, crankshaft may not rest with any piston at "TDC".

- Position the left camshaft timing chain according to the markings made during removal as shown in the illustration.






- Press the guide rail for the left camshaft timing chain tensioner down and secure the chain tensioner using a (T40071).

- Guide the camshaft timing chain upward toward the cylinder head. Pay close attention to the markings when removing.






- Install the drive chain sprocket. Refer to => [ Installation Location of the Mounting Pins for the Right Camshaft Timing Chain Drive Sprocket ] Timing Mechanism Drive Chain Overview.

- Tighten the mounting pin bolts - 1 -.

- Remove the (T40071).

• Ignore - arrow -.

- Insert the chain tensioner at the right cylinder head and position the camshaft timing chain.






- Fasten bolts - 1 and 2 -.

Install in reverse order of removal paying attention to the following:

- Position the camshaft timing chain on the camshafts. Refer to => [ Camshaft Timing Chains, Removing from Camshafts ] Camshaft Timing Chains, Removing From Camshafts.

- Install timing chain lower cover. Refer to => [ Lower Timing Chain Cover ] Lower Timing Chain Cover.