How to disassemble the valve spring? Valve spring common failure
First, a few words about cars. The valve spring is located between the cylinder head and the spring seat at the end of the valve stem. Its function is to ensure that the valve can be closely fitted with the valve seat or valve seat ring when the valve is closed, and to overcome the inertial force generated by the valve mechanism when the valve is opened, so that the transmission components can always be adjusted by the CAM without being separated from each other. So how to remove the valve spring? How much do you know?
Valve spring disassembly method: disassembly.
The valve spring is a small tool that ensures the valve is immediately seated and tightly fitted, preventing the valve from jumping when the engine vibrates and damaging its sealing performance.
1. Screw the threaded connection end of the valve spring compressor into the cylinder body;
2. Press the pressure head of the valve spring compressor on the valve spring;
3. Hold the handle with your hand and press down until the handle is level. At this point, you can install the air door lock clamp.
How to remove valve springs: Valve springs often experience failure.
1. Under the long-term action of high temperature and periodic high-frequency alternating force, the valve spring is easy to wear and deform after a period of time. In this case, the spring elasticity will be weakened and reduced, affecting the valve closure is not tight, the machine engine power is reduced, and it is difficult to set up when starting. If the car stops at the intersection, will the friends think about the travel situation at that time?
2. The valve spring ring is affected by poor quality, weak elasticity or deflection or valve spring fracture. When the engine is idling, the "clicking" sound can be clearly heard at the valve chamber cover, and sometimes there is a buzzing sound. In severe cases, the acceleration performance of the car is reduced, and the phenomenon of starting difficulties and the work of individual cylinders is not smooth.
3. When the elasticity of the oil outlet valve spring is weakened. It will cause serious leakage of high pressure oil, drop the remaining pressure in the high pressure oil pipe, the oil valve can not be quickly seated, the oil supply becomes short and unstable, and the engine can not work or "travel". In addition, it can also make the injector start to spray weak, simple oil cut off, and there is a drop phenomenon. Then it will affect the engine overheating, combustion deterioration, exhaust smoke and other necessary environmental pollution.
