CL L4-2156cc 2.2L SOHC F22B1 MFI (1997)
Valve Guide: Testing and Inspection
VALVE TO GUIDE CLEARANCE
Valve Movement
Measure the guide-to-stem clearance with a dial indicator while rocking the stem in the direction of normal thrust (wobble method).
Intake Valve Stem-to-Guide Clearance:
Standard (New): 0.04-0.09 mm (0.002-0.004 in.)
Service Limit: 0.16 mm (0.006 in.)
Exhaust Valve Stem-to-Guide Clearance:
Standard (New): 0.11-0.16 mm (0.004-0.006 in.)
Service Limit: 0.24 mm (0.009 in.)
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If measurement exceeds the service limit, recheck using a new valve.
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If measurement is now within the service limit, reassemble using a new valve.
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If measurement still exceeds the limit, recheck using the alternate method below, then replace the valve and guide, if necessary.
Alternate Method
An alternate method of checking guide to stem clearance is to 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 guide measurement and the smallest stem measurement should not exceed the service limit.
Intake Valve Stem-to-Guide Clearance:
Standard (New): 0.020-0.045 mm (0.0008-0.0018 in.)
Service Limit: 0.08 mm (0.003 in.)
Exhaust Valve Stem-to-Guide Clearance:
Standard (New): 0.055-0.080 mm (0.0022-0.0031 in.)
Service Limit: 0.12 mm (0.005 in.)
