139700-0000 ZEXEL 9 411 610 443 BOSCH O-RING 9411610443 1397000000 1157294360

(1) Distance from the end of the valve to the valve spring washer seat ... 2.063 .015 in.(52.40 0.38 mm)(2) Depth of bore in head for valve seat insert ... .442 .002 in.(11.23 0.05 mm)(3) Diameter of valve seat insert ... 1.9120 .0005 in.(48.565 0.013 mm) Bore in head for valve seat insert ... 1.9090 .0005 in.(44.489 0.013 mm)(4) Maximum permissible width of the face of the valve seat insert ... .105 in.(2.67 mm)(5) Angle of the face of the valve seat insert ... 451/4° 1/2°(6) Distance from head of valve to cylinder head face: Maximum permissible (valve closed) ... .085 in.(2.16 mm)Minimum permissible (valve closed) ... .050 in.(1.27 mm)(7) Outside diameter of the face of the valve seat insert ... 1.735 .005 in.(44.07 0.13 mm) Maximum permissible ... 1.760 in.(44.70 mm)(8) Angle to grind face of seat insert (to get a reduction of maximum seat diameter) ... 15°Intake Valve (without valve seat insert)
(1) Distance from the end of the valve to the valve spring washer seat ... 2.063 .015 in.(52.40 0.38 mm)(2) Maximum permissible width of the face of the valve seat ... 120 in.(3.05 mm)(3) Angle of the face of the valve seat ... 301/4° 1/2°(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) Outside diameter of the valve seat ... 2.045 .005 in.(52.23 0.13 mm) Maximum permissible ... 2.065 in.(52.45 mm)(6) Diameter of the bore ... 2.150 in.(54.61 mm)(7) Maximum permissible depth of the bore to make the face of the valve seat smaller ... .170 in.(4.32 mm)Intake Valve (with valve seat insert)
TYPICAL ILLUSTRATION(1) Distance from the end of the valve to the valve spring washer seat ... 2.063 .015 in.(52.40 0.38 mm)(2) Depth of bore in head for valve seat insert ... .442 .002 in.(11.23 0.05 mm)(3) Diameter of valve seat insert ... 2.1500 .0005 in.(54.610 0.013 mm) Bore in head for valve seat insert ... 2.1470 .0005 in.(54.534 0.013 mm)(4) Maximum permissible width of the face of the valve seat insert ... .120 in.(3.05 mm)(5) Angle of the face of the valve seat insert ... 301/4° 1/2°(6) 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)(7) Outside diameter of the face of the valve seat insert ... 2.045 .005 in.(52.23 0.13 mm) Maximum permissible ... 2.065 in.(52.45 mm)(8) Angle to grind face of seat insert (to get a reduction of maximum seat diameter) ... 15°