Left Timing Chain Cover

Left Timing Chain Cover

Special tools, testers and auxiliary items required

• Hand drill with plastic brush attachment

• Protective eyewear

• Sealant, refer to the Parts Catalog

Removing

- Remove the left intermediate pipe. Refer to => [ Left Intermediate Pipe ] Left Intermediate Pipe.

- Remove the Exhaust Gas Recirculation (EGR) cooler switch-over valve 2 (N381) - 3 -.

- Remove the bolts - arrows -.






- Push the left rear coolant pipe to the side and remove the coolant hose - 2 -.

• Ignore - 1 -.

- Remove the bolts - 3 - and - 4 - and remove the exhaust gas recirculation pipes.






• Ignore - 1 and 2 -.

- Remove the bolts - 1 through 4 - and remove the left timing chain cover.






Installing

• Tightening specifications, refer to => [ Turbocharger Overview ] Turbocharger Overview, => [ Exhaust Gas Recirculation Overview ] Exhaust Gas Recirculation Overview.

• Replace the bolts for the left timing chain cover.

- Remove old sealant from the grooves in the timing chain cover as well as from the sealing surfaces.

Risk of contaminating lubricating system.

• Cover open parts of engine.

Risk of eye injury.

• Wear protective eyewear.

- Remove the sealant residue on the cover for the timing chain, cylinder block and cylinder head, for example using a rotating plastic brush.






- Clean the sealing surfaces; they must be free of oil and grease.

• Note the expiration date of the sealing compound.

- Cut the tube nozzle at the front marking (nozzle diameter approximately 1.5 mm).






The lubrication system could be plugged with excess sealant.

• Do not apply sealant bead thicker than specified.

- Apply a sealant bead to the clean sealing surface of the left timing chain cover as shown in the illustration.

• The groove - 1 - of sealing surface must be completely filled with sealant.






• The sealant bead must be 1.5 to 2.0 mm above the sealing surface.

- Install the seal - 2 -.

• Note the expiration date of the sealing compound.

- Cut the tube nozzle at the front marking (nozzle diameter approximately 1.5 mm).






- Apply a 3 mm diameter sealant bead to the transitions between the cylinder head and lower timing chain cover - arrows - as illustrated.






The lubrication system could be plugged with excess sealant.

• Do not apply sealant bead thicker than specified.

• The timing chain cover must be installed within 5 minutes after applying the sealant

- Position the left timing chain cover and tighten the bolts. Refer to => [ Left Timing Chain Cover, Tightening Specifications and Sequence ] Timing Chain Covers Overview.






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

- Install the left rear coolant pipes. Refer to => [ Left Rear Coolant Pipe ] Left Rear Coolant Pipe.

- Install the left intermediate pipe. Refer to => [ Left Intermediate Pipe ] Left Intermediate Pipe.