Duramax LLY – GLOW PLUG AND INJECTION NOZZLE INSTALLATION

1. Install glow plugs in each cylinder head (Figure 2-178).
Tighten plugs to 8-12 lb-ft (11-16 Nโ€ขm).

2. Install gasket on each injector nozzle (Figure 2-179).

3. Install injector nozzles in cylinder heads finger tight.

4. Tighten nozzles to 44-60 lb-ft (60-81 Nโ€ขm) torque with installer tool Jโ€“29873.

5. Connect return hoses between nozzles and install hose clamps.

6. Install plug on rear nozzle and install hose clamp.