67C3K11 2-8123456789Rocker arm shaftOutside diameter mm (in) 15.971–15.991 (0.6288–0.6296)Rocker armInside diameter mm (in) 16.000–16.018 (0.6299–0.6306)ValveValve clearance (cold)Intake mm (in) 0.20 ± 0.05 (0.008 ± 0.002)Exhaust mm (in) 0.30 ± 0.05 (0.012 ± 0.002)Head diameter (A)Intake mm (in) 31.9–32.1 (1.256–1.264)Exhaust mm (in) 25.9–26.1 (1.020–1.028)Face width (B)Intake mm (in) 1.84–2.97 (0.0724–0.1169)Exhaust mm (in) 1.98–3.11 (0.0780–0.1224)Seat contact width (C)Intake and exhaust mm (in) 0.9–1.1 (0.035–0.043)Margin thickness (D)Intake mm (in) 0.6–1.0 (0.024–0.039)Exhaust mm (in) 0.7–1.1 (0.028–0.043)Stem diameterIntake mm (in) 5.475–5.490 (0.2156–0.2161)Exhaust mm (in) 5.460–5.475 (0.2150–0.2156)Stem runout limitIntake mm (in) 0.030 (0.0012)Exhaust mm (in) 0.016 (0.0006)Guide inside diameterIntake and exhaust mm (in) 5.500–5.512 (0.2165–0.2170)Stem-to-guide clearanceIntake mm (in) 0.010–0.037 (0.0004–0.0015)Exhaust mm (in) 0.025–0.052 (0.0010–0.0020)Valve springFree length mm (in) 39.85 (1.5689)Tilt limit mm (in) 1.7 (0.067)CylinderBore size mm (in) 64.985–65.015 (2.5585–2.5596)Item Unit ModelF30AMHD F40BMHD F40BWHD F40BEDMaintenance specification
