TM 5-3895-383-24 (6) Injector push rod length............................. 225 mm (8.9 in) NOTE: Injector  push  rod  length  (6)  corresponds  to  an overall length measurement (top of cup to bottom of  ball)  as  taken  by  a  serviceman  with  a  scale. The  injector  push  rod  length  (6)  is  intended  to provide a means of identification. (7) Bore in lifter arm for shaft (new) ......................................................15.670 ± 0.012 mm (.6169 ± .0005 in) Diameter of shaft (new).......................15.620 ± 0.012 mm (.6150 ± .0005 in) Valves Type I Cylinder Head (standard vale springs and retainers) NOTE: Intake and exhaust valve stems are to be coated with 8T2998 Break-in Lubricant prior to installation in the cylinder head. NOTE: For removing and installation of valve guides and valve seat inserts, use 1U6685 Tool Group. (1) Exhaust valve. (2) Intake valve. (3) 7C4273 Spring for intake and exhaust valves. Free length ...............................................71.0 mm (2.80 in) Assembled length................................65.86 mm (2.593 in) Load at assembled length...............217 ± 22 N (49 ± 5 lb) Minimum operating length .....................50.7 mm (2.00 in) Load at minimum operating length ...................858 40 N (193 9 lb) (4) Height to top of valve guides .......................23.0 ± 0.5 mm (.906 ± .020 in) (5) Diameter of valve stems (new) ........................8.000 ± 0.008 mm (.3150 ± .0003 in) "Use again" minimum diameter of valve stems.....................................................7.965 mm (.3136 in) Bore in valve guides with guides installed in head .........................8.045 ± 0.010 mm (.3167 ± .0004 in) "Use again" maximum bore in valve guides with guides installed in head......................8.080 mm (.3181 in) (6) Diameter of valve head: Intake valve..................47.00 ± 0 .13 mm (1.850 ± .005 in) Exhaust valve ..............40.00 ± 0.13 mm (1.575 ± .005 in) (7) Angle of valve faces: Intake valve......................................... 29-3/4 1/4 degrees Exhaust valve ............................................ 45 1/4 degrees (8) Diameter of valve seat inserts: Intake valve............................................50.000 ± 0.013 mm (1.9685 ± .0005 in) Exhaust valve ........................................43.000 ± 0.013 mm (1.6929 ± .0005 in) Bore in head for valve seat insert: Intake valve............................................49.931 ± 0.013 mm (1.9658 ± .0005 in) Exhaust valve ........................................42.931 ± 0.013 mm (1.6902 ± .0005 in) Valve seat insert must be shrunk by reduced temperature before installing in head. (9) Angle of valve seat inserts: Intake valve....................................................30 ± 1 degrees Exhaust valve ................................................45 ± 1 degrees (10) Depth of bore in head for valve seat insert............................... 10.00 ± 0.13 mm (.394 ± .005 in) 5-9