Chapter 31, Problem 1RQ

What is the procedure for grinding valves?

To determine

Write the procedure for grinding valves.

Explanation of Solution

The procedure for grinding valves is as follows:

• A valve stem is first lightly ground and chamfered to confirm that the valve will sit in the holder.
• The valve face is then ground to the appropriate angle with a valve grinder.
• The valve seat is ground in the head.
• Check and correct the heights of the valve spring installed and valve stem.
• Once complete cleaning is done, the cylinder head is attached to the new valve stem seals that are installed.