What are the valve spring installation methods shared with you by the valve spring seat manufacturer?

The method for distinguishing between upper and lower valve springs is as follows: for general valve springs, the density decreases, the thickness rises, the size falls, and the size rises. If the size is large, the density sample does not divide between the upper and lower parts. The installation method for valve springs is as follows:

1. During installation, the dense side of the spring should face downward, mainly to prevent spring resonance and improve stability. Generally, many repair workers do not follow the normal process of installation, because there will not be too many problems after installation, so they do not care. It is recommended to install in a regular manner;

2. Don't look at the markings. The spiral density at both ends of the valve spring is different. If you look closely, you will find that you only need to place the dense end underneath. The main valve components of the engine valve train include: valves, valve springs, valve studs/caps, and camshafts;

3. Valves are divided into exhaust valves and intake valves. The valve seat of the exhaust valve is much smaller than the valve seat of the intake valve, and cannot be installed after reversing. You should be asking if the valve spring is reversed. If the valve spring reverses, it will definitely have a certain impact, resulting in inaccurate match

How does the valve spring seat manufacturer inspect the springs?

The valve spring for intake and exhaust is still very good. The exhaust valve spring, the intake valve short spring. Just remember this. Inspection steps:

1. Check the free length of the valve spring. Use a caliper to measure the free length of the valve spring, and the value should meet the standard value of. If not, replace it;

2. Check the perpendicularity of the valve spring. Use a square and a flat ruler to check the perpendicularity of the valve spring. The value is consistent with the standard value, otherwise it must be replaced;

3. Check the preload of the valve spring. The preload of the valve spring is tested using a dynamometer and the value meets the standard. If the preload is lower than the standard value, replace the valve spring;

4. To prevent damage, valve spring seat manufacturers often compress the spring.

What are the correct placement methods for valve spring seats?

The correct way to place the valve spring is to secure the valve spring with a lock and circlip. The valve spring is a cylindrical spiral spring, with one end supported on the cylinder head (body) and the other end supported on the spring seat at the valve stem end. The elastic seat is fixed to the end of the valve stem with a locking tab:

1. One end of the valve spring is supported in the cylinder head or cylinder body, and the other end is supported on the valve spring seat. The spring seat and the end of the valve stem are fixed with a lock. To prevent resonance during valve spring operation,

2. When installing the spring seat manufacturer, for variable pitch springs, the smaller end of the pitch should face the cylinder head. For high-power engines, each valve is equipped with internal and external springs of different sizes, which are coaxially installed outside the valve conduit;

3. The use of dual springs not only improves the working reliability of the valve springs, but also reduces the height and size of the springs, thereby reducing the engine height. When using a dual spring structure, the spiral direction of the spring coil should be reversed to prevent the broken spring coil from sticking into another spring coil.