C3.3 Industrial Engine Caterpillar

Fuel Injection Lines - Remove and Install

Usage:

C3.3 E3K

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Dispose of all fluids according to local regulations and mandates.

Turn the fuel supply to the OFF position.
Turn the battery disconnect switch to the OFF position.
If the engine is equipped with a cover for the fuel injectors, remove the cover for the fuel injectors. Refer to Disassembly and Assembly, "Fuel Injector Cover - Remove and Install".
Remove the breather tube from the valve mechanism cover. Refer to Disassembly and Assembly, "Crankcase Breather- Remove and Install".
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Illustration 1 g01379043

Typical example
Disconnect fuel injection lines (2) at fuel injectors (1).
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Typical example
Disconnect fuel injection lines (2) at fuel injection pump (3). Ensure that connections (4) do not turn.
Plug and cap all open ports, fuel injection lines and all tube assemblies.

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Inspect the fuel injection lines for damage. Replace any components that are damaged.
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Illustration 3 g01379043

Typical example

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Illustration 4 g01379045

Typical example
Remove the caps from fuel injection pump (3) and from fuel injectors (1). Remove the caps from fuel injection lines (2).
Install fuel injection lines (2). Loosely connect the nuts at both ends of the fuel injection lines.
Tighten fuel injection lines (2) at fuel injector (1) to a torque of 27 N·m (19.9141 lb ft).
Tighten fuel injection lines (2) at fuel injection pump (3) to 27 N·m (19.9141 lb ft). Ensure that the connection (4) does not turn.
Note: Ensure that each fuel injection line does not contact any other fuel injection line or any other engine component.
Install the breather tube to the valve mechanism cover. Refer to Disassembly and Assembly, "Crankcase Breather- Remove and Install".
If the engine is equipped with a cover for the fuel injectors, install the cover for the fuel injectors. Refer to Disassembly and Assembly, "Fuel Injector Cover - Remove and Install".
Turn the fuel supply to the ON position.
Turn the battery disconnect switch to the ON position.
Remove the air from the fuel system. Refer to the Operations and Maintenance Manual, "Fuel System - Prime".