Cummins 4BT – Fuel Shut Off Solenoid Adjustment/ Replacement – Bosch P7100

Preparatory Steps:
• Label and disconnect the wiring.

10 mm
Remove the two hold-down capscrews and clip pin.
Remove and replace the fuel shut off solenoid.
Torque Value: 9 N*m [7 ft-lb]

Adjustment
Refer to Procedure (5-11), Shut Down Solenoid (In-Line Type Injection Pump) – Troubleshooting, for troubleshoot­ing the solenoid.
Turn the key to the “ on” position. This will energize the red (hold) wire and black (common) wire.
This is the low current hold-in coil and must be energized continuously during this adjustment.
NOTE: Do not turn the key to the “run” position at this time.
This will energize the white (pull-in) wire.

Move the shutoff lever by hand to the full run position.

10 mm, 16 mm
Check the plunger travel.
A = 66.9 mm [2.64 in] maximum
NOTE: Dimension A is measured from the bottom of the mounting bracket to the top of the pivot pin.
Adjust the solenoid linkage as necessary so that the plunger is magnetically held in now with the shutoff lever
in the absolute full run position. Turn the large hex on the end of the plunger to make adjustments.