TM 5-3805-260-24VALVE SEATS AND INSERTSINTAKE VALVE (with valve seat insert)(1)Diameter of the valve seatinsert ......................2 15000005 in (54 6100.013 mm)(2)Bore In head for valve seatinsert ......................2 1470 0005 In (54 534 0.013 mm)(2)Depth of bore in head for valveseat insert. .......................... .442 .002 in (11.23 0.05 mm)(3)Maximum permissible width of the face of thevalve seat insert ..................120 in (3 05 mm)(4)Distance from head of valve to cylinder head face:Maximum permissible (valve closed) ........................068 in (1 73 mm)Minimum permissible (valve closed) .........................036 in (0 91 mm)(5)Angle of the face of the valve seat insert ..................301/2 1/2(6)Outside diameter of the face of the valveseat insert ...........................2.045 005 in (52.23 0.13 mm)Maximum permissible ........2 065 in (52 45 mm)(7)Angle to grind face of seat insert (to get a reductionof maximum seat diameter) ......................................15EXHAUST VALVE(1)Depth of bore in head for valveseat insert ............................442 .005 in (1123 0 13 mm)(2)Diameter of valveseat insert .......................... 1.9120 0005 in (48 565 0.013 mm)(3)Bore in head for valveseat insert ..........................1.9090 0005 in (48 489 0.013 mm)Maximum permissible width of the faceof the valve seat insert ....... ....................................105 in (2 67 mm)(4)Distance from head of valve to cylinder head faceMaximum permissible (valve closed) .........................085 in. (2 16 mm)Minimum permissible (valve closed) .........................050 in (1 27 mm)(5)Angle of the face of the valve seat insert ..................451/2 1/2(6)Outside diameter of the face of thevalve seat insert.................1.735 .005 in (44.07 0.13 mm)Maximum permissible .........1.760 in (44 70 mm)(7)Angle to grind face of seat insert (to get a reductionof maximum seat diameter) ...................................... 15°1-14
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