Timing Cover: Service and Repair

Engine Front Cover













Engine Front Cover (View 1 of 2)









Engine Front Cover (View 2 of 2)









Removal

NOTICE: 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 or severe engine damage can occur.

NOTICE: 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 Jacking and Lifting Service and Repair.

2. Depower the vehicle high voltage electrical system. For additional information, refer to High Voltage Traction Battery High-Voltage Traction Battery Systems Depowering.

3. Remove the accessory drive belt and tensioner. For additional information, refer to Accessory Drive - Hybrid Accessory Drive Belt Tensioner.

4. Remove the crankshaft pulley. For additional information, refer to Crankshaft Pulley Crankshaft Pulley.

5. Remove the engine mount. For additional information, refer to Engine Mount Removal and Replacement.

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

Using the Oil Seal Remover, remove the crankshaft front seal.





7. Remove the 3 bolts and the coolant pump pulley.

8. Disconnect the Crankshaft Position (CKP) sensor electrical connector.

9. Remove the 2 bolts and the CKP sensor.





10. Remove the A/C tube bracket bolt from the strut tower.

11. Disconnect the vehicle high voltage electrical connector from the DC/DC converter and detach the wiring retainer.

12. Remove the bolts and the engine front cover.





Installation

1. NOTICE: 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 (0.09 in) bead of silicone gasket and sealant to the cylinder head and oil pan joint areas. Apply a 2.5 mm (0.09 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. Connect the vehicle high voltage electrical connector to the DC/DC converter and attach the wiring retainer.

5. Install the A/C tube bracket bolt to the strut tower.
- Tighten to 6 Nm (53 lb-in).

6. NOTE: Remove the through bolt from the Camshaft Front Oil Seal Installer.

NOTE: Lubricate the oil seal with clean engine oil.

Using the Camshaft Front Oil Seal Installer, install the crankshaft front seal.





7. Install the coolant pump pulley and the 3 bolts.
- Tighten to 20 Nm (177 lb-in).

8. Install the engine mount. For additional information, refer to Engine Mount Removal and Replacement.

9. Install the crankshaft pulley. For additional information, refer to Crankshaft Pulley Crankshaft Pulley.

10. NOTICE: 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.





11. Install the CKP sensor and the 2 bolts.
- Do not tighten the bolts at this time.





12. Using the Crankshaft Sensor Aligner, adjust the CKP sensor.
- Tighten the 2 CKP bolts to 7 Nm (62 lb-in).





13. Connect the CKP sensor electrical connector.

14. Remove the 6 mm x 18 mm bolt.





15. Install the accessory drive belt and tensioner. For additional information, refer to Accessory Drive - Hybrid Accessory Drive Belt Tensioner.

16. Repower the vehicle high voltage electrical system. For additional information, refer to High Voltage Traction Battery High-Voltage Traction Battery Systems Depowering.