D348 VEHICULAR ENGINE Caterpillar


Fuel Injection Valves

Usage:



Remove Fuel Injection Valves

preparatory step:

a) remove valve covers

1. Remove the inner fuel injection line (1).

2. Remove fuel injection valve retaining nut (2).

3. Remove the fuel injection valve assembly from precombustion chamber. Remove the valve from body.

Install Fuel Injection Valves

1. Install the fuel injection valve finger tight on the body. Install the valve assembly in precombustion chamber.

2. Install the valve retaining nut (2) and tighten to an initial torque of 85 ± 5 lb. ft. (11,8 ± 0,7 mkg). Hand tighten retaining nut to a final torque of 105 ± 5 lb. ft. (14,52 ± 0,7 mkg).

3. Install the inner fuel injection line. Tighten retaining nuts to 30 ± 5 lb. ft. (4,1 ± 0,7 mkg).

concluding step:

a) install valve covers

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