Replacing or servicing a valve spring requires a tool called a valve spring compressor, which is specially designed for spring compression. A valve spring must be removed with a proper step-by-step procedure because it is under extreme pressure when it is installed. Therefore, it is very dangerous to conduct an improper removal. It is not possible to fix a valve spring without a spring compressor. The steps to use a valve spring are given below.
Things You'll Need
Step 1: Placing the Cylinder Head
If you want to remove the valve spring from an assembled cylinder head using valve spring compressor, place the cylinder head on its side.
Step 2: Compressing the Spring
Place the U-shaped portion of the spring compressor on a valve spring retainer and screw it on the head of the cylinder to compress the spring.
Step 3: Removing the Retainers, Keepers and Valve
Remove the valve retainers and keepers while the spring is compressed. Next, remove the valve while slowly releasing the compressor.
Step 4: Installing the Valve Spring
To install the valve spring, keep the spring on top of the valve stem using a valve spring compressor.
Step 5: Installing the Valve Retainers and Keepers
Fix the valve retainer over the spring. Follow the procedure for the removal of the spring using the compressor, as mentioned earlier, but compress the spring down to the valve stem and fix valve keepers on both the sides of the valve.
Step 6: Removing the Spring Compressor
Remove the spring compressor after securing the valve keepers in place.