How to Adjust the Third Ring Long Hao Guosi Oil Pump

Adjusting the oil pump of a four-cylinder diesel engine There is an oil quantity adjusting screw on the mechanical oil pump, but this screw is sealed with lead seal when the engine leaves the factory. The working medium entering the cylinder is pure air. Due to the small resistance of the intake system of diesel engine, the intake terminal pressure PA = (0.85 ~ 0.95) P0, which is higher than that of gasoline engine. The final intake temperature ta = 300 ~ 340 k, which is lower than that of gasoline engine.

Note that the fuel pump is an extremely critical component in the gasoline injection system. Once the fuel pump fails, the car will have various bad symptoms.

Data expansion

Maintenance suggestion

1. Most electric fuel pumps are installed in the oil tank. Some vehicles access the panel, and the replacement pump can be deleted without disassembling the fuel tank.

2. The fuel pump in the fuel tank is immersed in the fuel to help them keep cool, which will destroy the fuel pump.

3. When replacing the fuel pump, replace the fuel filter.

4. The fuel filter is blocked or the electrical system drives the fuel pump, which may lead to symptoms similar to fuel pump failure. Make sure there is something wrong with the pump before replacement.

5. Gasoline burns easily to avoid fire and personal injury.