Left and Right Timing Chain Covers

Left and Right Timing Chain Covers

Special tools, testers and auxiliary items required

• Hand drill with plastic brush attachment

• Protective eye-wear

• Sealant

Removing

• During installation, all cable ties must be re-installed at the same location.

- Remove the rear engine cover - top arrows -.





- Remove the affected secondary air injection combination valve. Refer to => [ Secondary Air Injection Left Combination Valve ] Secondary Air Injection Left Combination Valve or => [ Secondary Air Injection Right Combination Valve ] Secondary Air Injection Right Combination Valve

Left timing chain cover:

- Remove the bolts - arrows - and disconnect the ignition coil connectors on the left cylinder head.





CAUTION!
Risk of violating emissions legislation.

• Do not open the hose connection - 2 - for the crankcase ventilation.

- Remove the left cylinder head cover with the crankcase ventilation hose still connected. Refer to => [ Left Cylinder Head Cover ] Left Cylinder Head Cover.

• Ignore - 1 and 4 -.

- Disconnect the electrical connectors - 3 - on the Camshaft Adjustment Valve 1 (N205) and Camshaft Adjustment Valve 1 (Exhaust) (N318), while following the note below.

• The connecting bracket - 3 - on the camshaft adjustment valve electrical connectors - 1 - and - 2 - prevents them from being exchanged and must not be removed from the connectors.





- To disconnect, press both connectors - arrows - and remove them both together from the Camshaft Adjustment Valve 1 (N205) and Camshaft Adjustment Valve 1 (Exhaust) (N318).

- Free up electrical wires.

- Remove bolts - 1 through 8 - and remove the left timing chain cover.





Right timing chain cover:

- Remove bolts - 1 through 8 - and remove the right timing chain cover.





Installing





CAUTION!
Risk of eye injury.

• Wear safety glasses.

CAUTION!
Risk of contaminating lubricating system.

• Cover open parts of engine.

- Remove the sealant residue on the covers 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 2.0 mm).





CAUTION!
The lubrication system could be plugged with excess sealant.

• Do not apply sealant bead thicker than indicated.

- Apply the sealant bead - arrow - to the clean sealing surfaces on the left timing chain cover as shown in the illustration.

• Thickness of sealant bead: 2.5 mm.

• Covers for timing chain must be installed within 5 minutes after applying sealant.

- Position the left timing chain cover and tighten the bolts in the sequence - 1 to 8 -. Refer to => [ Left Timing Chain Cover, Tightening Specifications
and Sequence ] Timing Chain Covers Assembly Overview.





- Apply the sealant bead - arrow - to the clean sealing surfaces on the right timing chain cover as shown in the illustration.





• Thickness of sealant bead: 2.5 mm.

- Position the right timing chain cover and tighten the bolts in the sequence - 1 to 8 -. Refer to => [ Right Timing Chain Cover, Tightening Specifications
and Sequence ] Timing Chain Covers Assembly Overview.





Further installation is performed in reverse order.