61. Engine Block Plug Installation

Engine Block Plug Installation

^ Tools Required
- J 41712 Oil Pressure Switch Socket






1. Install a NEW oil filter bypass valve.

Caution:
Refer to Safety Glasses Caution in Service Precautions.

1. Install the oil filter bypass valve into the oil gallery bore until slightly below flush with the surface of the engine block.
2. Using a pointed punch, stake the engine block area around the oil filter bypass valve.Stake in 3 locations 120 degrees apart.





2. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the outside diameter of the NEW front engine oil gallery plugs.
3. Install the NEW front engine block oil gallery plugs. A properly installed front engine oil gallery plug must be installed slightly below flush with the front face of the engine block.





4. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent, to the outside diameter of the NEW engine block core hole plugs.
5. Install the NEW engine block core hole plugs. A properly installed engine block core hole plug must be installed flush or below the bottom of the chamfer (1) of the engine block core hole.





6. Install the crankshaft rear oil seal housing locator spring type S pin, if required.





7. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the outside diameter of the NEW expansion cup plug.
8. Install the NEW expansion cup plug into the balance shaft rear bearing hole.





9. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the outside diameter of the NEW expansion cup plug.
10. Install the NEW expansion cup plug into the camshaft rear bearing hole.





11. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the threads of the engine block right rear oil gallery plug, the engine block left rear oil gallery plug, and the engine block left side oil gallery plug.

12. Install the engine block right rear oil gallery plug, the engine block left rear oil gallery plug, and the engine block left side oil gallery plug.
^ Tighten the engine block left side oil gallery plug and the engine block right rear oil gallery plug to 20 Nm (15 lb ft).
^ Tighten the engine block left rear oil gallery plug to 30 Nm (22 lb ft).

Notice:
Refer to Fastener Notice in Service Precautions.






13. Install the transmission locator dowel straight pins, if required.





14. Install the left side cylinder head locator dowel pins, if required.The installation height should be 6.3-6.5 mm (0.248-0.256 inch) (a).





15. Install the right side cylinder head locator dowel pins, if required.The installation height should be 6.3-6.5 mm (0.248-0.256 inch) (a).





16. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the threads of the engine block coolant drain hole plugs.
17. Install the engine block coolant drain hole plugs.
^ Tighten the engine block coolant hole plugs to 20 Nm (15 lb ft).





18. If reusing the engine oil pressure sensor fitting, apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the threads of the engine oil pressure sensor fitting.

19. Install the engine oil pressure sensor fitting.
^ Tighten the engine oil pressure sensor fitting to 15 Nm (11 lb ft).

Important:
Do not loosen the engine oil pressure fitting after the initial torque has been obtained.


20. Rotate the engine oil pressure sensor fitting clockwise to the proper position (1), 50 degrees from the centerline (2).

Important:
Do not rotate the engine oil pressure fitting clockwise more than 359 degrees after the initial torque has been obtained.






21. If reusing the engine oil pressure gage sensor, apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the threads of the engine oil pressure gage sensor.
22. Install the engine oil pressure gage sensor using the J 41712.
^ Tighten the engine oil pressure gage sensor to 30 Nm (22 lb ft).





23. Install the knock sensor (2).
24. Install the knock sensor retaining bolt (1).
^ Tighten the knock sensor to 25 Nm (18 lb ft).