Timing Cover: Service and Repair

Engine Front Cover

Special Tool(s):

Material:

Removal

CAUTION: Do not loosen or remove the crankshaft pulley bolt without first installing the special tools as instructed in this procedure. The crankshaft pulley and the crankshaft timing sprocket are not keyed to the crankshaft. The crankshaft, the crankshaft sprocket and the pulley are fitted together by friction, using diamond washers between the flange faces on each part. For that reason, the crankshaft sprocket is also unfastened if the pulley bolt is loosened. Before any repair requiring loosening or removal of the crankshaft pulley bolt, the crankshaft and camshafts must be locked in place by the special service tools, otherwise severe engine damage can occur.

CAUTION: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan can cause engine failure.

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Maintenance/Service and Repair.
2. Depower the supplemental restraint system (SRS). For additional information, refer to Air Bag Systems.
3. Loosen the 3 coolant pump pulley bolts.
4. Remove the crankshaft pulley.
5. Disconnect the crankshaft position (CKP) sensor electrical connector.
^ Detach the 2 wiring harness retainers from the engine front cover.

6. NOTE: Whenever the CKP sensor is removed, a new part must be installed, using the alignment tool supplied with the new part.

Remove and discard the CKP sensor.

7. CAUTION: Use care not to damage the engine front cover or the crankshaft when removing the seal.

Using the special tool, remove the crankshaft front oil seal.





8. Remove the 3 bolts and the coolant pump pulley.
9. Remove the coolant expansion tank. For additional information, refer to Cooling System.
10. Remove the power steering pump.
11. Remove the engine mount. For additional information, refer to Engine Mount.
12. Slightly raise the engine for access to the accessory drive idler pulley.
13. Remove the accessory drive idler pulley. For additional information, refer to Drive Belts, Mounts, Brackets and Accessories.
14. Remove the bolts and the engine front cover.





Installation

1. CAUTION: Do not use metal scrapers, wire brushes, power abrasive disks or other abrasive means to clean sealing surfaces. These tools cause scratches and gouges which make leak paths.

Clean and inspect the mounting surfaces of the engine and the front cover.

2. NOTE: The engine front cover must be installed and the bolts tightened within 4 minutes of applying the silicone gasket and sealant.

Apply a 2.5 mm (0.10 in) bead of silicone gasket and sealant to the cylinder head and oil pan joint areas. Apply a 2.5 mm (0.10 in) bead of silicone gasket and sealant to the front cover.





3. Install the engine front cover. Tighten the bolts in the sequence shown, to the following specifications:
^ Tighten the 8-mm bolts to 10 Nm (89 lb-in).
^ Tighten the 13-mm bolts to 48 Nm (35 lb-ft).





4. Install the accessory drive idler pulley.
5. Lower the engine to the installed position.
6. Install the engine mount.
7. Install the power steering pump.
8. Install the coolant expansion tank.
9. Install the coolant pump pulley and the 3 bolts.
^ Do not tighten at this time.

10. NOTE: Remove the through-bolt from the special tool.

NOTE: Lubricate the oil seal with clean engine oil.

Using the special tool, install the crankshaft front oil seal.





11. Install the crankshaft pulley.

12. CAUTION: Only hand-tighten the bolt or damage to the front cover can occur.

Install a standard 6 mm (0.23 in) x 18 mm (0.7 in) bolt through the crankshaft pulley and thread it into the front cover.





13. Install the CKP sensor and the 2 bolts.
^ Do not tighten the bolts at this time.





14. Adjust the new CKP sensor with the alignment tool.
^ Tighten the 2 bolts to 7 Nm (62 lb-in).





15. Connect the CKP sensor electrical connector.
^ Attach the 2 wiring harness retainers to the engine front cover.

16. Remove the 6 mm (0.23 in) x 18 mm (0.7 in) bolt.





17. Tighten the coolant pump pulley bolts.
^ Tighten to 20 Nm (15 lb-ft).

18. Repower the SRS. For additional information, refer to Air Bag Systems.
19. Fill the power steering system.