Valve Stem to Valve Guide Clearance

Special Tools:

Note: Valve stem diameter must be within specifications before checking valve stem to valve guide clearance.

1. Note: If necessary, use a magnetic base.





Install a Valve Stem Clearance Tool on the valve stem and install a Dial Indicator with Bracketry. Lower the valve until the Valve Stem Clearance Tool contacts the upper surface of the valve guide.
2. Move the Valve Stem Clearance Too] toward the indicator and zero the indicator. Move the Valve Stem Clearance Tool away from the indicator and note the reading. The reading will be DOUBLE the valve stem-to-valve guide clearance. Valves with oversize stems will need to be installed if out of specification.