For the integral cylinder head (nonreplaceable guide), there are three different methods of repairing the valve guides.
What are the methods that can be used to fix a worn or damaged valve guide?
The methods that can be used to fix a worn or damaged valve guide are:
- To accommodate pressed fit, integral guides can be bored out.
- Insert guides may be squeezed out and replaced.
- To fit valve stems, cast iron guides can be knurled and then reamed.
What is a Valve Guide?
For most types of reciprocating engines, a valve guide is supplied in the cylinder head for each poppet valve.
It works in tandem with the valve spring to positively position the valve so that it can make adequate contact with the valve seat.
Learn more about Valve Guides:
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