A valve spring compressor
A valve spring compressor is used to remove collets in a car. The tool compresses the valve springs in the cylinder head of the car allowing the collets to be removed.
Valve pocketing is when a valve is hammering the valve seat.mostly due to miss adjusted valve spring/wrong valve spring/to strong of a valve spring or valve stem to short.Makes the valve seat deeper.
Without a spring, the lock would never unlock. Therefore, a lock of a door required a spring.
If only one spring were used on each valve, the valve would surge and bounce because of the natural vibration frequency of the spring.
valve spring compresser
how many positions does a spring offset valve have
you need to compress the spring with a valve spring compressor tool, and then remove the valve keepers, and retainer.
The valve spring is the spring that closes the valve in the engine head after the cam lobe or rocker opens it . If the valve didn't close, many things would happen , the main one being the motor would not fire .
To take the lock plate off requires a lock plate spring compressor. With the spring compressor in place and the spring slightly compressed remove the circlip that holds the lock plate on. Then release the spring compressor and the lock plate simply slides off.
The Spring Lock - 1912 was released on: USA: 7 September 1912
The purpose of the valve spring is to maintain contact between the components in the valve train, so the valve motion will follow the cam profile.