Cummins 4BT – High Pressure Fuel Line Replacement – Distributor Type Pumps

17 m m
Disconnect the high pressure fuel lines from the injectors and complete the following steps.
NOTE: Thoroughly clean area around fuel lines before removal.

10 mm
Remove the fuel line clamp capscrews from the intake cover.

14 mm and 17 mm
Remove the fuel lines from the fuel injection pump.
NOTE: Use two wrenches to prevent the delivery valve holder from turning.

10 mm
Assemble the fuel lines in the reverse order of removal.
Torque Value: 30 Nยปm [22 ft-lb]

Warning: Do not bleed a hot engine as this could cause fuel to spill onto a hot exhaust manifold creating a danger of fire.
Operate the engine and vent one line at a time until the engine runs smoothly.