How to divide ea888 valve spring?

What do you want to know about "how to divide ea888 valve springs"? The relevant contents are as follows:

The valve springs of ea888 engine are mostly separated in intake and exhaust, but they don't need to be separated in front and back. The main differences are as follows:

1, the intake is slightly thicker than the exhaust, mainly because the intake response is fast and the intake is sparse than the exhaust spring. The original factory has a paint label, with air intake at three o'clock and exhaust at five o'clock. The old model is green and red;

2. The valve spring is a small tool to ensure that the valve seats in time and fits tightly, so as to prevent the valve from jumping when the engine vibrates and destroy its sealing performance;

3. Valve springs are mostly made of high-quality alloy steel wires, and after heat treatment, the fatigue strength is improved. In order to avoid spring corrosion, the spring surface should be galvanized and phosphatized;

4. The two end faces of the spring must be smooth and perpendicular to the axis of the spring to prevent the spring from being skewed when working.