Timing Cover: Service and Repair

Engine Front Cover Replacement

Tools Required
^ J37228 Seal Cutter

Removal Procedure





1. Disconnect the negative battery cable.
2. Remove the water pump.
3. Remove the crankshaft front oil seal.
4. Remove the right wheelhouse panel.
5. Disconnect the Crankshaft Position (CKP) sensor electrical connector.





6. Remove the CKP sensor bolt and sensor.
7. Remove the CKP sensor spacer bolts and spacer.
8. Remove and discard the O-rings from the sensor and the spacer.





9. Remove the upper oil pan to engine front cover bolts.





10. Remove the engine front cover bolts.
11. Separate the engine front cover from the cylinder block and upper oil pan using J37228.

12. Important: Do not bend the turbocharger coolant pipe.

Remove the engine front cover.





13. If necessary, remove the pressure relief valve O-ring.
14. Clean and inspect the front cover.

Installation Procedure





1. If necessary, install a NEW pressure relief valve O-ring.

Notice: Refer to Fastener Notice in Service Precautions.

2. Lubricate the O-ring with engine oil.
Tighten the valve to 39 Nm (29 ft. lbs.).





3. Apply a 2 - 3 mm (1/8 inch) wide by 0.5 - 1.5 mm (1/16 inch) high, bead of sealant GM P/N 97720043 (Canadian P/N 88901148), or equivalent to the engine front cover sealing surface to the engine block.
4. Apply a 2 - 3 mm (1/8 inch) wide by 0.5 - 1.5 mm (1/16 inch) high, bead of sealant GM P/N 97720043 (Canadian P/N 88901148), or equivalent to the engine front cover sealing surface to the upper oil pan.





5. Install the engine front cover.
6. Install the engine front cover bolts.
Tighten the bolts to 25 Nm (18 ft. lbs.).





7. Install the upper oil pan to engine front cover bolts.
Tighten the bolts to 21 Nm (15 ft. lbs.).





8. Install a NEW O-ring to the CKP sensor spacer.
9. Lubricate the O-ring with clean engine oil.

Important: The crankshaft position sensor spacers are machined with different timing positions. However, if the crankshaft position sensor spacer requires replacement, replace with a grade "C" spacer.

10. Install the CKP sensor spacer and bolts.
Tighten the bolts to 10 Nm (89 inch lbs.).
11. Install a NEW O-ring to the CKP sensor.
12. Lubricate the O-ring with clean engine oil.
13. Install the CKP sensor and bolt.
Tighten the bolt to 10 Nm (89 inch lbs.).





14. Connect the CKP sensor electrical connector.
15. Install the right wheelhouse panel.
16. Install the crankshaft front oil seal.
17. Install the water pump.
18. Connect the negative battery cable.