WHEEL & SHAFT AS 2W3141 - Caterpillar

(1) Installation dimension from top of valve guide to top face of cylinder head ... 1.06 in.(26.9 mm)(2) Length of guide ... 3.03 in.(76.9 mm)(3) Bore in valve guide with guide installed in the head: 5S2921 Guide ... .3139 .0007 in.(7.973 0.018 mm)(4) Depth of bore in head for valve seat insert ... .348 .001 in.(8.839 0.025 mm)(5) Bore in head for valve seat insert for intake valve ... 1.5005 .0005 in.(38.113 0.013 mm) Diameter of valve seat insert for intake valve ... 1.5035 .0005 in.(38.188 0.013 mm)Bore in head for valve seat insert for exhaust valves ... 1.4380 .0005 in.(36.525 0.013 mm)Diameter of valve seat insert for exhaust valve ... 1.4410 .0005 in.(36.601 0.013 mm)(6) Angle of face of valve seat insert ... 45°(7) Maximum width of the face of valve seat insert for intake valve ... .100 in.(2.54 mm) Maximum width of the face of valve seat insert for exhaust valve ... .092 in.(2.34 mm)(8) Distance from face of closed valve to bottom face of cylinder head (intake and exhaust): Maximum ... .119 in.(3.02 mm)Minimum ... .050 in.(1.27 mm)(9) Outside diameter of the face of the valve seat insert: Minimum permissible, intake seat ... 1.375 in.(34.92 mm)Maximum permissible, intake seat ... 1.410 in.(35.81 mm)Minimum permissible, exhaust seat ... 1.315 in.(33.40 mm)Maximum permissible, exhaust seat ... 1.350 in.(34.29 mm)