Cylinder Head and Valves/Cylinder Head and Valves Specifications CYLINDER HEAD AND VALVES SPECIFICATIONS ITEM SPECIFICATION WEAR LIMIT Valve Lift at 0.00 mm (in.) Clearance Intake . . . . . . . . . . . . . . . . . . . 13.53—13.71 mm (0.533—0.540 in.) 12.65 mm (0.498 in.) Exhaust . . . . . . . . . . . . . . . . . . 14.52—14.70 mm (0.572—0.579 in.) 13.64 mm (0.537 in.) Valve Clearance With Engine Cold (Rocker Arm-to-Valve Tip): Intake . . . . . . . . . . . . . . . . . . . 0.331—0.431 mm (0.013—0.017 in.) Exhaust . . . . . . . . . . . . . . . . . . 0.457—0.559 mm (0.018—0.022 in.) Valve Spring Compressed Height: Valve Closed-Intake . . . . . . . . . . 52.5 mm @ 345—399 N (2.07 in.
@ 78—90 lb-force) Exhaust . . . . . . . . . . 54.5 mm @ 284—338 N (2.15 in. @ 64—76 lb-force) Valve Open-Intake . . . . . . . . . . . 38.1 mm @ 810—880 N (1.50 in. @ 182—198 lb-force) Exhaust . . . . . . . . . . 38.5 mm @ 797—867 N (1.52 in. @ 179—195 lb-force) Valve Head OD: Intake . . . . . . . . . . . . . . . . . . . 50.87—51.13 mm (2.003—2.013 in.) Exhaust . . . . . . . . . . . . . . . . . . 46.87—47.13 mm (1.845—1.856 in.) 05 5 Valve Stem OD: Exhaust . . . . . . . . . . . . . . . . . . 9.44—9.46 mm (0.3717—0.3724 in.) Intake . . . . . . . . . . . . . . . . . . . 9.46—9.49 mm (0.3724—0.3736 in.) Oversize Valve (Stem) Available . . .
0.08, 0.38, 0.76 mm (0.003, 0.015, 0.030 in.) Valve Guide ID . . . . . . . . . . . . . . 9.51—9.54 mm (0.3745—0.3755 in.) Valve Stem-to-Guide Clearance: Exhaust . . . . . . . . . . . . . . . . . . 0.051—0.102 mm (0.002—0.004 in.) Intake . . . . . . . . . . . . . . . . . . . 0.025—0.076 mm (0.001—0.003 in.) Valve Face Angle . . . . . . . . . . . . . 29.25˚ ±0.25˚ Valve Seat Angle . . . . . . . . . . . . . 30˚ ±0.50˚ Valve Seat Width: Exhaust . . . . . . . . . . . . . . . . . . 2.0—3.8 mm (0.79—0.150 in.) Intake . . . . . . . . . . . . . . . . . . . 1.4—3.8 mm (0.055—0.150 in.) Valve Seat Concentricity with Guide . . . . . . . . . . . . . . . .
0.051 mm (0.0020 in.) Valve Recess in Cylinder Head: Intake . . . . . . . . . . . . . . . . . . . 3.35—3.86 mm (0.132—0.152 in.) 4.62 mm (0.182 in.) Exhaust . . . . . . . . . . . . . . . . . . 1.19—1.70 mm (0.047—0.067 in.) 2.46 mm (0.097 in.) Maximum Valve Seat Runout . . . . . 0.051 mm (0.0020 in.) Maximum Valve Face Runout . . . . . 0.051 mm (0.0020 in.) CTM42 (24MAR95) 05-5 6076 Diesel Engines—S.N. (500000— ) RG,CTM42,G5,1 -19-14FEB95 160101 PN=48