Usage:
(1) Guide bore (installed) ... .3736-.3756 in.(9,489-9,540 mm)
Maximum permissibe bore (worn) ... .3766 in.(9,566 mm)
(2) Valve guide projection above head ... .875 in.(22,22 mm)
(3) Depth-valve seat insert bore ... .447-.451 in.(11,38-11,45 mm)
(4) Diameter-inlet valve seat insert ... 2.1280-2.1290 in.(54,051-54,077 mm)
Bore in head for seat insert ... 2.1250-2.1260 in.(53,975-54,001 mm)
Diameter-exhaust valve seat insert ... 2.0030-2.0040 in.(50,876-50,902 mm)
Bore in head for seat insert ... 2.0000-2.0010 in.(50,800-50,826 mm)
(5) Angle-valve seat face ... 30°
(6) Maximum permissible width (valve seat) exhaust ... .095 in.(2,40 mm)
Maximum permissible width (valve seat) inlet ... .095 in.(2,40 mm)
(7) Closed valve projection-maximum permissible:
Inlet valves ... .138 in.(3,51 mm)
Exhaust valves ... .128 in.(3,25 mm)
(8) Valve seat face diameter:
Inlet seat minimum permissible ... 1.934 in.(49,12 mm)
Inlet seat maximum permissible ... 1.984 in.(50,40 mm)
Exhaust seat minimum permissible ... 1.810 in.(45,97 mm)
Exhaust seat maximum permissible ... 1.860 in.(47,25 mm)
(9) Angle to grind insert seat face to reduce maximum seat diameter ... 15°