59. Engine Block Plug Installation

Engine Block Plug Installation (C/K/G/C3500HD)

- Tools Required
- J 41712 Oil Pressure Sending Unit Socket





1. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent to the threads of the coolant hole plug.

Notice: Refer to Fastener Notice in Service Precautions.

2. Install the engine coolant hole plug into the block.
- Tighten the engine coolant hole plug to 60 Nm (40 lb ft).





3. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent to the threads of the engine block heater, if applicable.
4. Install the engine block heater into the block.
- Tighten the engine block heater to 50 Nm (37 lb ft).





5. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent to the threads of the oil gallery plugs.
6. Install the engine block top oil gallery plugs.
- Tighten the top oil gallery plugs to 20 Nm (15 lb ft).





7. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent to the threads of the oil gallery plug.
8. Install the engine block left side oil gallery plug.
- Tighten the left oil gallery plug to 30 Nm (22 lb ft).





9. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent to the threads of the oil gallery plugs.
10. Install the front oil gallery plugs.
- Tighten the front oil gallery plugs to 30 Nm (22 lb ft).





11. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent to the threads of the oil gallery plugs.
12. Install the rear oil gallery plugs.
- Tighten the rear oil gallery plugs to 30 Nm (22 lb ft).





13. Apply thread adhesive GM P/N United States 12345493, GM P/N Canada 10953488, or equivalent to the threads of the engine block oil cooler hose fittings.
14. Install the engine block oil cooler hose fittings.
- Tighten the engine block oil cooler hose fittings to 23 Nm (17 lb ft).





Important: Do not overtighten the knock sensor.

15. Install the left knock sensor to the engine block.
- Tighten the left knock sensor to 20 Nm (15 lb ft).





16. Install the left side knock sensor shield.
17. Install the left side knock sensor shield bolts.
- Tighten the left side knock sensor shield bolts to 12 Nm (106 lb in).





Important: Do not overtighten the knock sensor.

18. Install the right knock sensor to the engine block.
- Tighten the right side knock sensor to 20 Nm (15 lb ft).





19. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent to the threads of the engine block coolant drain hole plugs.
20. Install the engine block coolant drain hole plugs.
- Tighten the coolant drain hole plugs to 30 Nm (22 lb ft).





21. Apply sealer GM P/N United States 12377901, GM P/N Canada 10953504, to the outside diameter of the new camshaft rear bearing hole plug.





22. Install the NEW camshaft rear bearing hole plug to the proper depth of (A) 7.60 - 6.200 mm (0.299 - 0.244 inch).
23. Apply sealant GM P/N United States 12346004 GM P/N Canada 10953480, or equivalent to the threads of the oil pressure sensor.
24. Install the oil pressure sensor.
- Using the J 41712 tighten the oil pressure sensor to 30 Nm (22 lb ft).