Accord SE Coupe L4-2156cc 2.2L SOHC MFI (1997)
Valve Guide: Testing and Inspection
VALVE MOVEMENT
1. Measure the guide-to-stem clearance with a dial indicator while rocking the stem in the direction of normal thrust (wobble method).
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Intake Valve Stem-to-Guide Clearance:
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Standard (New): 0.04-0.09 mm (0.002-0.004 inch)
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Service Limit: 0.16 mm (0.006 inch)
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Exhaust Valve Stem-to-Guide Clearance:
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Standard (New): 0.11-0.16 mm (0.004-0.006 inch)
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Service Limit: 0.24 mm (0.009 inch)
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If measurement exceeds the service limit, recheck using a new valve.
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If measurement is now within service limit, reassemble using a new valve.
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If measurement still exceeds limit, recheck using alternate method below, then replace valve and guide, if necessary.
NOTE: An alternate method of checking guide to stem clearance is to subtract the Outer Diameter of the valve stem, measured with a
micrometer, from the I.D. of the valve guide, measured with an inside micrometer or ball gauge.
2. Take the measurements in three places along the valve stem and three places inside the valve guide.
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The difference between the largest guide measurement and the smallest stem measurement should not exceed the service limit.
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Intake Valve Stem-to-Guide Clearance:
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Standard (New): 0.020-0.045 mm (0.0008-0.0018 inch)
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Service Limit: 0.08 mm (0.003 inch)
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Exhaust Valve Stem-to-Guide Clearance:
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Standard (New): 0.055-0.080 mm (0.0022-0.0031 inch)
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Service Limit: 0.12 mm (0.005 inch)
