Cylinder head and Valves/Valve seats CHECK VALVE RECESS After lapping valve seat or remachining combustion face, install refaced or new valves in cylinder head and check valve recess (A). VALVE RECESS SPECIFICATIONS RG4756 -UN-06DEC88 T81869 -UN-07NOV88 Intake . . . . . . . . . . . . . . . . . 0.61—1.11 mm (0.024—0.044 in.) Wear tolerance . . . . . . . . . . . . . . . . . . . 1.63 mm (0.064 in.) Exhaust . . . . . . . . . . . . . . . . 1.22—1.72 mm (0.048—0.068 in.) Wear tolerance . . . . . . . . . . . . . . . . . . . 2.26 mm (0.089 in.) When maximum valve recess is reached, replace valve seat inserts. 05 13 CD,3274,G05,13 -19-01FEB94 CTM3274 (01JUL99) 05-13 Saran Liter Engines 060799 PN=50