Explorer Sport Trac 4WD V8-4.6L (2008)
Valve: Service and Repair
Valve Stem to Valve Guide Clearance
Valve Stem to Valve Guide Clearance
NOTE: The 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 Guide Clearance Gauge on the valve stem and install a Dial Indicator Gauge with Holding Fixture. Lower the valve until the
clearance gauge contacts the upper surface of the valve guide.
2. Move the clearance gauge toward the indicator and zero the indicator. Move the clearance gauge away from the indicator and note the reading.
The reading will be DOUBLE the valve stem-to-valve guide clearance.
