Operation CHARM: Car repair manuals for everyone.

Valve, Intake/Exhaust

Clearance
To Guide
Intake 0.020-0.069 mm (0.000787-0.002717 inch)
Exhaust 0.045-0.095 mm (0.001772-0.003740 inch)
* Lash 0.25-0.65 mm (0.009843-0.025590 inch)
Face
Angle 45.5°
Margin Thickness
Exhaust and Intake, Minimum 0.794 mm (1/32 inch)
Runout, Maximum 0.05 mm (0.00197 inch)
Head Diameter +
Intake 44.5 mm (1.752 inch)
Exhaust 34.0 mm (1.339 inch)
Stem Diameter
Standard
Intake 6.995-6.975 mm (0.2754-0.2746 inch)
Exhaust 6.970-6.949 mm (0.2744-0.2736 inch)
Oversize, 0.380 mm (0.015 inch)
Intake 7.376-7.356 mm (0.2904-0.2895 inch)
Exhaust 7.351-7.330 mm (0.2894-0.2886 inch)
Oversize, 0.760 mm (0.30 inch)
Intake 7.757-7.737 mm (0.3054-0.3046 inch)
Exhaust 7.732-7.711 mm (0.3044-0.3036 inch)
Stem Refinishing, Max 0.254 mm (0.010 inch)
Valve Lift @ Zero Lash (Theoretical)
Intake 12.0 mm (0.4724 inch)
Exhaust 12.0 mm (0.4724 inch)


* Lifter collapsed and on camshaft base circle.
+ Gauge diameters: 42.5 & 32.0 mm (1.6732 & 1.2598 inch)