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Valve Guides Valve Movement Wobble Method Measure the guide-to-stem clearance with a dial indica- tor while rocking the stem in the direction of normal Intake Valve Stem-to-Guide Clearance: (0.002 - 0.004 in) Service Limit: 0.16 mm (0.006 in) Exhaust Valve Stem-to-Guide Clearance: (0.004 - 0.006 in) Service Limit: 0.22 mm (0.009 in) Valve extended 10 mm out from seat. If the measurement exceeds the service limit, recheck Alternate Method ance is to subtract the O.D. of the valve stem, measured with a micrometer, from the I.D. of the valve guide, mea- measurements in 3 places along the valve stem and three places inside the valve guide. The difference between the largest guide measurement and the small- Intake Valve Stem-to-Guide Clearance: (0.001 - 0.002 in) Service Limit: 0.08 mm (0.003 in) Exhaust Valve Stem-to-Guide Clearance: (0.002 - 0.003 in) Service Limit: 0.11 mm (0.004 in) Main Menu Table of Contents |