Honda Pilot: Valve Stem-to-Guide Clearance Inspection

Inspection

1. Valve - Remove

2. Valve - Inspect

3. Valve Stem to Guide Clearance - Inspect

1. Subtract the O.D. of the valve stem, measured with a micrometer, from the I.D. of the valve guide, measured with an inside micrometer or ball gauge. Take the measurements in three places along the valve stem and three places inside the valve guide. The difference between the largest valve guide measurement and the smallest valve stem measurement should not exceed the service limit.

Intake Valve Stem-to-Guide Clearance

  Standard (New): 0.020－0.045 mm (0.00079－0.00177 in)

  Service Limit: 0.045 mm (0.00177 in)

Exhaust Valve Stem-to-Guide Clearance

  Standard (New): 0.055－0.080 mm (0.00217－0.00315 in)

  Service Limit: 0.080 mm (0.00315 in)

4. All Removed Parts - Install

1. Install the parts in the reverse order of removal.

Valve InspectionWater Pump Inspection