Timing Mechanism Drive Chain

Timing Mechanism Drive Chain

Special tools, testers and auxiliary items required

• Socket (T40058)

• Locking Pin (T40071)

Removing

• Engine remove, transmission separated from the engine. Refer to => [ Engine and Transmission, Separating ] Engine and Transmission, Separating.

• Secure the engine to the scissor lift platform (VAS 6131 A) or to an engine/transmission holder. Refer to => [ Engine, Securing to Engine and Transmission Holder ] Engine, Securing to Engine and Transmission Holder.

- Remove the camshaft timing chains. Refer to => [ Camshaft Timing Chains ] Camshaft Timing Chains.

- Remove the power take-off drive chain. Refer to => [ Power Take-Off Drive Chain ] Power Take-Off Drive Chain.

- Press the drive chain tensioner guide rail in the direction of the - arrow - and secure the chain tensioner with a (T40071).





CAUTION!
Risk of destroying due to reversed running direction on a used drive chain.

• Mark the drive chain running direction with arrows using paint for installation later. Do not mark the drive chain with a punch, notch or something similar.

- Remove the bolts - 1 - and the guide rail.

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

- Remove the timing mechanism drive chain.

Installing

• Tightening specifications, refer to => [ Timing Mechanism Drive Chain Assembly Overview ] Timing Mechanism Drive Chain Assembly Overview.

Installation is in reverse order of removal, note the following:

• Replace bolts which have been tightened to an additional torque.

- Position the timing mechanism drive chain according to the markings made on the drive chain sprockets during removal.

- Install the guide rail and tighten the bolts - 1 -.





- Install the chain tensioner and tighten the bolts - 2 -.

- Press the drive chain tensioner guide rail in direction of - arrow - and remove the (T40071).

- Install the power take-off drive chain. Refer to => [ Power Take-Off Drive Chain ] Power Take-Off Drive Chain.

- Install the camshaft timing chains. Refer to => [ Camshaft Timing Chains ] Camshaft Timing Chains.