Timing Mechanism Drive Chain

Timing Mechanism Drive Chain

Special tools, testers and auxiliary items required

• Locking Pin (T40071)

Removing

• Engine and transmission separated, refer to => [ Engine and Transmission, Separating ] Engine and Transmission, Separating, engine on the scissor lift platform (VAS 6131 A) or secured by the engine/transmission holder, refer to => [ Engine, Securing to Engine and Transmission Holder ] Engine, Securing to Engine and Transmission Holder.

• Engine oil drained.

- Remove the drive plate. Refer to => [ Drive Plate ] Drive Plate.

- Remove the cylinder head cover. Refer to => [ Left Cylinder Head Cover ] Left Cylinder Head Cover, refer to => [ Right Cylinder Head Cover ] Right Cylinder Head Cover.

- Remove left and right timing chain covers. Refer to => [ Left and Right Timing Chain Covers ] Left and Right Timing Chain Covers.

- Remove the intake manifold.

- Remove the oil filter housing. Refer to => [ Oil Filter Housing ] Oil Filter Housing.

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

- 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.

- Push drive chain tensioner guide rail in direction of - arrow - and secure chain tensioner using (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 then remove guide rail.

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

- Remove timing mechanism drive chain.

Installing

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

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

- Route timing mechanism drive chain according to marks applied to drive chain sprockets during removal.

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

- Install chain tensioner and tighten bolts - 2 -.

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

- 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 => [ Installing ] Camshaft Timing Chains.

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

- Install the transmission-side crankshaft shaft seal. Refer to => [ Crankshaft Seal, Transmission Side ] Service and Repair.

- Install the oil filter housing. Refer to => [ Oil Filter Housing ] Oil Filter Housing.

- Install the intake manifold.

- Install left and right timing chain covers => [ Installing ] Left and Right Timing Chain Covers.

- Install the cylinder head cover. Refer to => [ Left Cylinder Head Cover ] Left Cylinder Head Cover, refer to => [ Right Cylinder Head Cover ] Right Cylinder Head Cover.

- Install drive plate. Refer to => [ Drive Plate ] Drive Plate.

- After installing the engine, fill with oil and then check the level.

Tightening Specifications