MANIFOLD-EXHAUST 2168709 - Caterpillar

(1) 2S4213 Spring for valve: Length under test force ... 1.95 in.(49.5 mm)Test force ... 55.0 3.5 lb.(24.9 1.6 kg)Free length after test ... 2.31 in.(58.7 mm)Outside diameter ... 1.486 in.(37.74 mm)(2) Length of valve guide ... 2.85 .04 in.(72.4 1.0 mm)(3) Diameter of valve stem (new) ... .3717 .0003 in.(9.441 0.008 mm) Minimum permissible diameter of valve stem ... .3689 in.(9.370 mm)Bore in valve guide with guide installed in the head:Minimum permissible (installed) ... .3741 in.(9.502 mm)Maximum permissible (worn) ... .3780 in.(9.601 mm)(4) Bore in head for valve seat insert for intake valves ... 1.8090 .0005 in.(45.949 0.013 mm) Diameter of valve seat insert for intake valves ... 1.8120 .0005 in.(46.025 0.013 mm)Bore in head for valve seat insert for exhaust valves ... 1.6840 .0005 in.(42.774 0.013 mm)Diameter of valve seat insert for exhaust valves ... 1.6870 .0005 in.(42.850 0.013 mm)(5) Depth of bore in head for valve seat insert ... .474 .001 in.(12.04 0.03 mm)(6) Thickness of valve lip: Intake valve, minimum permissible ... .0716 in.(1.819 mm)Exhaust valve, minimum permissible ... .0720 in.(1.829 mm)(7) Diameter of valve head: Intake valves ... 1.771 .005 in.(44.98 0.13 mm)Exhaust valves ... 1.646 .005 in.(41.81 0.13 mm)(8) Angle of valve face ... 441/4°(9) Width of the face of valve seat insert: For intake valves (new) ... .060 in.(1.52 mm)For exhaust valves (new) ... .074 in.(1.88 mm) (10) Angle of face of valve seat insert ... 45°(11) Outside diameter of the face of the valve seat insert: Minimum permissible, intake seat ... 1.714 in.(43.54 mm)Maximum permissible, intake seat ... 1.7456 in.(44.338 mm)Minimum permissible, exhaust seat ... 1.589 in.(40.36 mm)Maximum permissible, exhaust seat ... 1.6210 in.(41.173 mm)(12) Height of guide above bottom of counterbore in cylinder head ... 1.192 .020 in.(30.28 0.51 mm)