Left or Right Upper Timing Chain Cover

Left or Right Upper 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

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

• The sealant for the cover is very strong. Pry off the cover very slowly and evenly so that it does not bend.

- Remove the engine compartment cover. Refer to => [ Engine Compartment Cover ] Service and Repair.

- Remove the rear engine cover - 2 - upward.






- Remove the affected Secondary Air Injection (AIR) combination valve, refer to one of the following:

• => [ Secondary Air Injection Combination Valve, Left ] Secondary Air Injection Combination Valve, Left.

• => [ Secondary Air Injection Combination Valve, Right ] Secondary Air Injection Combination Valve, Right.

Left Cover:






- Remove the bolts - 1 through 8 - and the brackets - arrows A and B -.

- Carefully remove the left timing chain cover.

Right Cover:






- Remove the nuts - arrows - and move the bracket - 1 - and wiring harness to the side.

- Remove the bolts - 1 through 8 -.






- Carefully remove the right timing chain cover.

Installing

For tightening specifications, refer to the following:

• => [ Timing Chain Covers Overview ] Timing Chain Covers Overview.

• => [ Left Timing Chain Cover Bolt Tightening Sequence and Specification ] Timing Chain Covers Overview.

• => [ Right Timing Chain Cover Bolt Tightening Sequence and Specification ] Timing Chain Covers Overview.

• Replace the O-rings.

Risk of contaminating the lubricating system.

• Cover open parts of the engine.

- Remove any old sealant from the sealing surfaces.

Risk of eye injury.

• Wear protective eyewear.

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






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

• Be sure to check the expiration date of the sealant.






- Cut the sealant tube nozzle at the front mark (nozzle diameter approximately 2 mm).






The lubrication system could be plugged with excess sealant.

• Do not apply the sealant bead thicker than indicated.

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

• Thickness of sealant bead: 2.5 mm

• 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 Bolt Tightening Sequence and Specification ] Timing Chain Covers Overview.






- Position the right timing chain cover and tighten the bolts, refer to => [ Right Timing Chain Cover Bolt Tightening Sequence and Specification ] Timing Chain Covers Overview.






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

- Install the AIR combination valve, refer to one of the following:

• => [ Secondary Air Injection Combination Valve, Left ] Secondary Air Injection Combination Valve, Left.

• => [ Secondary Air Injection Combination Valve, Right ] Secondary Air Injection Combination Valve, Right.