High Quality Diesel Head Rotor 1 468 336 607 VE Injector Head Rotor Spare Part

The jamming of the rack of the high-pressure diesel pump is generally caused by two reasons. One is caused by the plunger coupling being seized, and the other is caused by the limited transmission of the rack and ring gear. If the plunger is stuck due to wear and tear, the plunger is generally stuck at the highest position. Because the plunger moves up under the action of the camshaft, and goes down under the action of the spring force. The camshaft is driven by the shaft, and the mechanical force is relatively large. The plunger wears and bites, and is forced to go up under the action of the mechanical force. Finally, the spring force is insufficient. And stuck in the highest position. If the plunger coupling of the second cylinder is stuck at the highest position, according to the working principle of the high-pressure diesel pump, it can be known that the inlet and return holes of the high-pressure diesel pump are connected at this time, indicating that the diesel pumping is stopped. There should be no pulsation in the high-pressure diesel pipe, and the cylinder is stalled and the exhaust The smoke temperature is the lowest, which is inconsistent with the actual situation. Preliminary judgment is that the second cylinder rack is not stuck due to the plunger coupling being seized, but only due to the rack and ring gear transmission. Try to avoid diesel engine throttle operation to prevent damage to the throttle rack due to excessive force and mechanical damage caused by excessive load on a single cylinder. At the same time, stop the engine for maintenance as soon as possible. Pay special attention to the occurrence of multi-cylinder throttle rack stuck at the high throttle position. The main engine of the clutch must prevent the car from overrunning if the clutch main engine is disengaged. Stop the car and turn the car to check whether the roller of the high-pressure diesel pump of the third cylinder fits well with the camshaft.