Valve Stem To Valve Guide Clearance

VALVE STEM TO VALVE GUIDE CLEARANCE


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

1. Install a Valve Guide Clearance Gauge 303-004 on the valve stem and install a Dial Indicator Gauge with Holding Fixture 100-002. Lower the valve until the clearance gauge contacts the upper surface of the valve guide.


NOTE: If necessary, use a magnetic base.






2. Move the Valve Guide Clearance Gauge toward the indicator and zero the indicator. Move the Valve Guide Clearance Gauge away from the indicator and note the reading. The reading will be DOUBLE the valve stem-to-valve guide clearance.


NOTE: See Specifications for the specification.