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1104C Perkins engine - Remove and refit the injection pump (MF 5400, 6400 tractors)

Removing the injection pump

Delphi DP210 pump

Take off the adjacent components. Check the position of the first cylinder piston in compression at Top Dead Centre. Loosen the lock screw (5). Turn the spacer (6) to allow the lock screw (5) to lock the pump pin. Turn the pump pin anti-clockwise until slight resistance is felt (Fig. 13). Tighten the lock screw to a torque of 17 Nm. The lock screw (5) must be tightened to prevent the pump pin from turning. The pump pin must not turn when the pump is removed.

Disconnect the fuel return line (1) (Fig. 13). Disconnect the fuel supply line (3). Disconnect the connector (2) of the injection timing solenoid (7). Remove the nut and retaining washer from the injection pump gear. Extract the pump gear (9) using a suitable puller. Do not try to extract the gear (8) by inserting a lever between the gear and the housing. Take out the nut and screw. If necessary, take out the screw (15) and the bracket (11) from the 1104 Perkins engine block. Take out the screws (13) to remove the injection pump. Remove the injection pump. Take off and discard the "O" ring (10).

Bosch VE10 pump

Take off the adjacent components. Check the position of the first cylinder piston in compression at Top Dead Centre. Mark and disconnect the fuel pipes (1) and (2) from the injection pump (Fig. 16). Plug the unions to keep dust out of the channels. Disconnect the injection timing system connector (3). Disconnect the 1104C Perkins diesel engine stop solenoid connector (4) (Fig. 16). Loosen the lock screw. Shift the spacer to allow the lock screw to lock the pump pin. Turn the pump pin anti-clockwise until slight resistance is felt. Tighten the screw to a torque of 31 Nm. The lock screw (6) must be tightened to prevent the pump pin from turning. The pump pin must not turn when the pump is removed.

Remove the nut (7) and retaining washer from the injection pump gear (8). Extract the pump gear (9) using a suitable puller. Do not try to extract the gear (8) by inserting a lever between the gear and the housing. Take out the nut (13) and screw (11) (Fig. 18). If necessary, remove the bracket (10) and its screws from the 1104 engine block. Take out the screws (12) to remove the injection pump. Remove the injection pump. Take off and discard the "O" ring (9).

Refitting the injection pump (4-cylinder Perkins engine)

Delphi DP210 pump

The injection pump must be locked in rotation by the lock screw (5) during reassembly. Do not loosen this screw before being instructed to do so. If the lock screw has been loosened or if the pump shaft has turned, contact a Perkins agent. Check the position of the first cylinder piston in compression at Top Dead Centre. Do not lubricate the "O" ring (10) (Fig. 19): it should be dry fitted. Fit a new "O" ring (10) on the injection pump. Position the injection pump on the housing. Refit the screws (13). Tighten the screws to 25 Nm. Refit the screw (15) and bracket (11) if removed.

Check that the bracket properly supports the pump alone. Tighten the screw (15) to 44 Nm. Refit the screw (12) and the nut (14). Ensure the contact faces between the pump shaft and injection pump gear are clean. Lubricate the threads of the pump shaft. The nut (8) should turn freely until it reaches the gear. Position the injection pump gear on the pump shaft. Refit the washer and nut (8). Turn the pump gear anti-clockwise until there is no backlash. Tighten the nut to a torque of 24 Nm. Reconnect all electrical connectors to the pump. Remove all dustproof plugs and ensure the channels and unions are clean.

Refit the previously removed fuel channels (1) (3) and (4) (Fig. 20). Loosen the lock screw (5). Move the spacer (6) so that it no longer blocks the pump pin by tightening the screw (5). Tighten the screw to a torque of 12 Nm. The spacer (6) must be correctly positioned and the screw (5) correctly tightened to prevent contact between the injection pump shaft and the screw (5). Tighten the nut (8) to a torque of 88 Nm. Reassemble the adjacent components (injection channels, front cover plate, fan, belts, crankshaft pulley).

Bosch VE10 pump

Check the position of the first cylinder piston in compression at Top Dead Centre. Lightly lubricate a new "O" ring (9) with silicone oil. Fit the new seal (9) to the pump. Position the injection pump on the housing. Refit the screws (12). Tighten the screws to 25 Nm. Refit the screw and bracket (10) if removed. Check that the bracket properly supports the pump alone. Tighten the screw to a torque of 44 Nm. Refit the screw (11) and the nut (13). Ensure the contact faces between the pump shaft and injection pump gear are clean. Lubricate the threads of the pump shaft. The nut (7) should turn freely until it reaches the gear (8) (Fig. 23).

Position the injection pump gear on the pump shaft. Refit the washer and nut (7). Turn the pump gear anti-clockwise until there is no backlash. Tighten the nut to a torque of 24 Nm. Reconnect all electrical connectors to the pump (Fig. 24). Remove all dustproof plugs and ensure the channels and unions are clean. Refit the previously removed fuel channels (1) (2) (Fig. 24).

Loosen the lock screw (6). Move the spacer (5) so that it no longer blocks the pump pin by tightening the screw (6). Tighten the screw to a torque of 12 Nm. The spacer (5) must be correctly positioned and the screw (6) correctly tightened to prevent contact between the injection pump shaft and the screw (6). Tighten the nut (7) to a torque of 88 Nm (Fig. 23). Reassemble the adjacent components (injection channels, front cover plate, fan, belts, crankshaft pulley).