22/02/21
What are the common reasons for the failure of the oil pump
Generally speaking, the mechanical oil transfer pump is very reliable. Even if it fails, it is often the diaphragm rupture that causes insufficient oil transfer. Sometimes the rocker arm or spring of the oil pump is worn out excessively, which will also cause insufficient oil delivery. The fault is easier to identify. The old-fashioned oil pump can be repaired, but the new-style oil pump cannot be disassembled, so it should be replaced once it fails.
Reasons for the failure of the fuel pump:
Generally speaking, the mechanical oil transfer pump is very reliable. Even if it fails, it is often the diaphragm rupture that causes insufficient oil transfer. Sometimes the rocker arm or spring of the oil pump is worn out excessively, which will also cause insufficient oil delivery. The fault is easier to identify. The old-fashioned oil pump can be repaired, but the new-style oil pump cannot be disassembled, so it should be replaced once it fails.
Repair method:
Generally speaking, the mechanical oil transfer pump is very reliable. Even if it fails, it is often the diaphragm rupture that causes insufficient oil transfer. Sometimes the rocker arm or spring of the oil pump is worn out excessively, which will also cause insufficient oil delivery. The fault is easier to identify. The old-fashioned oil pump can be repaired, but the new-style oil pump cannot be disassembled, so it should be replaced once it fails.
1. First, check whether the push rod that drives the diaphragm in the pump mechanism is damaged. Gently block the oil inlet of the oil pump with your fingers, and try to start the engine. If you feel suction at this time, it can prove that the push rod is intact.
2. The fingertips do not feel sucked, indicating that the push rod is damaged, and the fuel injection pump should be replaced as a whole.
Note: When the electric fuel injection pump is working, if there is a strong pumping sound, it means that the pump is in good condition. If there is no such pumping sound, it means that the fuel supply pump is faulty.
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