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Camshaft Timing Chains, From 03.2007






Camshaft Timing Chains, from 03.2007

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 clutch pressure plate.

- Remove the dual-mass flywheel. Refer to => [ Dual Mass Flywheel ] Dual Mass Flywheel.

- Remove the cylinder head cover. Refer to: Left => [ Left Cylinder Head Cover ] Left Cylinder Head Cover, right => [ 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 intake manifold.

- Remove 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 camshaft timing chains from the camshafts. Refer to => [ Camshaft Timing Chains, through 03.2007, Removing from Camshaft ] .

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

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

- Remove bolts - 1 - and - 2 - and remove left chain tensioner and left camshaft timing chain.





- Remove bolts - 1 - and - 2 - and remove right chain tensioner and right camshaft timing chain.





Installing

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 bolts which have been tightened to torque.

Replace the gasket.

CAUTION!
Risk of damaging valves and piston crowns.

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

- Press left and right camshaft timing chain guide rail inward - arrow - as far as stop and secure chain tensioner with Locking Pin (T40071).





- Clean oil strainer - 2 - in both chain tensioners if necessary.





- Place a new gasket - 3 - onto the rear of the chain tensioner - 1 -.

- Insert chain tensioner in left cylinder head and position camshaft timing chain according to mark applied during removal, as shown in illustration.

- Tighten bolts - 1 - and - 2 -.





- Insert chain tensioner in right cylinder head and position camshaft timing chain according to mark applied during removal, as shown in illustration.





- Tighten bolts - 1 - and - 2 -.

The rest of installation is in reverse order of removal, note the following:

- Mount the camshaft timing chains on the camshafts => [ Installing ] Camshaft Timing Chains, From 03.2007, Removing From Camshaft.

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

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

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

- Install intake manifold.

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

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

- Install dual-mass flywheel. Refer to => [ Dual Mass Flywheel ] Dual Mass Flywheel.

- Install clutch pressure plate.

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

Tightening specifications. Refer to => [ Camshaft Timing Chains, from 03.2007 Assembly Overview ] Camshaft Timing Chains, From 03.2007 Assembly Overview