Timing Cover: Service and Repair
Engine Front Cover Replacement
Special Tools
* J 41476 Front and Rear Cover Alignment Tool
* J 41480 Front and Rear Cover Alignment
Removal Procedure
1. Remove the water pump. Refer to Water Pump Replacement (LH8) (Service and Repair).
2. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement (Service and Repair).
3. Disconnect the engine harness electrical connector (1) from the camshaft position (CMP) sensor wire harness electrical connector.
4. Remove the oil pan-to-front cover bolts (1).
5. Remove the front cover bolts (1).
6. Remove the front cover (2) and gasket (3).
7. Discard the front cover gasket.
8. Remove the crankshaft front oil seal.
9. If replacing the engine front cover perform the following steps, otherwise proceed to step 10 of the installation procedure.
10. Remove the CMP sensor wire harness bolts (1, 6).
11. Disconnect the CMP sensor wire harness from the CMP sensor.
12. Remove the CMP sensor wire harness (5).
13. Remove the CMP sensor (2).
Installation Procedure
Note:
* Do not use the crankshaft oil seal or the engine front cover gasket again.
* Do not apply any type of sealant to the front cover gasket, unless specified.
* The special tools in this procedure are used to properly align the engine front cover at the oil pan surface and to center the crankshaft front oil seal.
- All gasket surfaces should be free of oil or other foreign material during assembly.
The crankshaft front oil seal MUST be centered in relation to the crankshaft.
- The oil pan sealing surface at the front cover and engine block MUST be aligned within specifications.
- An improperly aligned front cover may cause premature front oil seal wear and/or engine assembly oil leaks.
1. Install the front cover gasket (3), front cover (2), and bolts (1).
2. Tighten the cover bolts finger tight. Do not overtighten.
Caution: Refer to Fastener Caution (Fastener Caution).
Note: Start the tool-to-front cover bolts. Do not tighten the bolts at this time.
3. Install the J 41480 .
Tighten the tool-to-engine block bolts to 25 Nm (18 lb ft).
Note: Align the tapered legs of the tool with the machined alignment surfaces on the front cover.
4. Install the J 41476 .
5. Install the crankshaft balancer bolt.
1. Tighten the crankshaft balancer bolt by hand until snug. Do not overtighten.
2. Tighten the J 41480 .
3. Tighten the engine front cover bolts to 25 Nm (18 lb ft).
6. Remove the tools.
7. Measure the oil pan surface flatness, front cover-to-engine block.
1. Place a straight edge across the engine block and front cover oil pan sealing surfaces.
Avoid contact with the portion of the gasket that protrudes into the oil pan surface.
2. Insert a feeler gage between the front cover and the straight edge tool. The cover must be flush with the oil pan surface or no greater than 0.5 mm (0.02 in) (a) below flush.
8. If the front cover-to-engine block oil pan surface alignment is not within specifications, repeat the cover alignment procedure.
9. If the correct front cover-to-engine block alignment cannot be obtained, replace the front cover.
10. Inspect the camshaft position (CMP) sensor O-ring seal (3) for cuts or damage. If the seal is not cut or damaged, it may be used again.
11. Lubricate the O-ring seal with clean engine oil.
12. Install the O-ring seal onto the sensor (2).
13. Install the sensor to the cover.
14. Install the CMP sensor wire harness (5) and bolts (1, 6).
Tighten the bolts to 12 Nm (106 lb in).
15. Connect the engine harness electrical connector (1) to the CMP sensor wire harness electrical connector.
16. Install a NEW crankshaft front oil seal. Refer to Crankshaft Front Oil Seal Replacement (Service and Repair).
17. Install the water pump. Refer to Water Pump Replacement (LH8) (Service and Repair).