Fuel injection pump 55 kW 320/06933 JCB 444, genuine

Fuel injection pump 55 kW 320/06933 is a genuine JCB part for the machines with the JCB Dieselmax 444 engine. According to the product card, the pump is for the 55 kW engine version.

The plungers, rotors and valves inside the pump, working thousands of times a minute, are made with clearances of a few microns. The pump is therefore opened only in a clean room, and its internal settings are made in a fuel injection workshop with a test bench, where its delivery, timing and pressures are measured. These values are needed for the engine to give its rated power and meet emission limits. Field adjustments to the pump can make the engine overheat and its parts wear early. The pump setting is only changed in a competent workshop. The label on the pump is kept, as it is used to confirm the part number.

Specifications

Compatibility

According to the product card, 320/06933 is a fuel injection pump. The card also lists 320/06874, 9520A510G, 9520A511G. Fit is confirmed by the part number. Other parts are in Fuel injection pumps.

Fitting

Before removing the pump, turn the engine until the timing marks line up and mark the position of the pump gear. Cap the fuel line ends at once. Fit the new pump in the timed position following the engine maker's instructions and tighten the connections with new seals to the specified torque. Then bleed the fuel system, without cranking for long on the first start. Once the engine runs, check for fuel leaks, idle, smoke and power, and read the fault codes on electronic systems. In the first hours, keep an eye on fuel consumption and exhaust smoke.