Valve Guide - Clearance, Diameter

Valve Guide (Unit: mm (inch))

Outer diameter
Standard: 10.023 - 10.034 (0.3946 - 0.3950)
Service: 10.223 - 10.234 (0.4025 - 0.4029)

Inner diameter (Finished size) 6.000 - 6.018 (0.2362 - 0.2369)

Cylinder head valve guide hole diameter
Standard: 9.975 - 9.996 (0.3927 - 0.3935)
Service: 10.175 - 10.196 (0.4006 - 0.4014)

Interference fit of valve guide 0.027 - 0.059 (0.0011 - 0.0023)

Stem to guide clearance
Intake
Standard: 0.020 - 0.053 (0.0008 - 0.0021)
Maximum tolerance 0.08 (0.0031)

Exhaust
Standard: 0.040 - 0.073 (0.0016 - 0.0029)
Maximum tolerance 0.1 (0.004)

Valve deflection limit
Intake (Maximum Tolerance) 0.24 (0.0094)
Exhaust (Maximum Tolerance) 0.28 (0.0110)

Projection length "L" 12.6 - 12.8 (0.496 - 0.504)