Cylinder head and Valves/Valves GRIND VALVES Serviceable valves should be refaced to specified angle (A). Face angle on intake and exhaust valves is 29.25˚ ± 0.25˚. RG4755 -UN-19NOV89 CD,3274,G05,3 -19-24FEB92 CHECK VALVE SPRING TENSION VALVE SPRING COMPRESSION Free length . . . . . . . . . . . . . . . . . . . . approx. 54 mm (2.125 in.) T82054 -UN-08NOV88 Load with spring compressed to 46 mm (1.81 in.) . . . . . . . . . . . . . . . 240—280 N (54—62 lb) Load with spring compressed to 34.5 mm (1.36 in.) . . . . . . . . . . . . .
590—680 N (133—153 lb) CTM3274 (01JUL99) 05-16 Saran Liter Engines CD,3274,G05,19 -19-01FEB94 060799 PN=53 CHECK VALVES Thoroughly clean and inspect valves to help determine if they can be reused. Replace valves that are burned, cracked, eroded, or chipped. -UN-07NOV88 1. Measure valve stem diameter and compare with corresponding valve guide diameter to check clearance (See “Measure valve guides”, in this group). VALVE STEM DIAMETER SPECIFICATIONS T82053 Intake valve . . . . . . . . . . . . . . . . . . . . . . . . 7.864—7.884 mm (0.3096—0.3104 in.) Exhaust valve . . . . . . . . . . . . . . . . . . . . . . . 7.848—7.874 mm (0.3090—0.3100 in.) -UN-05DEC97 2.
Check for valve face runout and bent valves. Maximum permissible runout of valve face . . . . . . . . . . . . . . . . 0.038 mm (0.0015 in.) RG4234 CD,CTM125,032 -19-01DEC97 05 16