LEVER 3K0823 - Caterpillar

GUIDELINE FOR REUSABLE PARTS; VALVES AND VALVE SPRINGS, Forms SEBF8002 and SEBF8034, have the procedure and specifications necessary for checking used valves and valve springs.(1) 9M5350 Spring for valve (outer): Length under test force ... 2.219 in.(56.36 mm)Test force ... 65 6.5 lb.(290 29 N)Use again minimum load at length under test force ... 57.0 lb.(255 N)Length of spring at valve open position ... 1.614 in.(41.00 mm)Use again minimum load at valve open position ... 165.5 lb.(736.5 N)Free length after test ... 2.57 in.(65.3 mm)Outside diameter ... 1.713 in.(43.51 mm)Spring must not be bent more than ... .090 in.(2.29 mm)(2) 9M5349 Spring for valve (inner): Length under test force ... 1.791 in.(45.49 mm)Test force ... 20 2 lb.(90 9 N)Use again minimum load at length under test force ... 17.4 lb.(77.5 N)Length of spring at valve open position ... 1.187 in.(30.15 mm)Use again minimum load at valve open position ... 47.9 lb.(213.0 N)Free length after test ... 2.18 in.(55.4 mm)Outside diameter ... 1.215 in.(30.86 mm)Spring must not be bent more than ... .076 in.(1.93 mm)(3) Diameter of valve stem (earlier intake and exhaust) ... .4955 .0005 in.(12.586 0.013 mm) Minimum permissible diameter of valve stem ... .4935 in.(12.535 mm)Minimum bore in earlier valve guides with guides installed in the head ... .5000 in.(12.700 mm)Maximum permissible diameter of bore in (earlier) valve guide ... .5030 in.(12.776 mm)Diameter of valve stem (later):1W1818 Intake Valve ... .3717 .0005 in.(9.441 0.013 mm)Use again minimum diameter of the valve stem ... .3704 in.(9.408 mm)1W1819 Exhaust Valve (tapered stem):Head end of valve stem ... .3707 .0005 in.(9.416 0.013 mm)Use again minimum diameter of the head end of valve stem ... .369 in.(9.37 mm)Lock end of valve stem ... .3717 .0005 in.(9.441 0.013 mm)Use again minimum diameter of the lock end of valve stem ... .3704 in.(9.408 mm)Bore in valve guides (later intake and exhaust) ... .3734 .0005 in.(9.484 0.013 mm)Maximum permissible bore in the later valve guides (worn): Measure .75 in. (19.0 mm) deep in valve guide bore from both ends of the valve guide ... .3760 in.(9.550 mm)(4) Thickness of valve lip (earlier and later): Exhaust valve, minimum permissible ... .094 in.(2.39 mm)Intake valve, minimum permissible ... .141 in.(3.58 mm)(5) Diameter of valve head (earlier and later): Exhaust valve ... 2.282 .005 in.(57.96 0.13 mm)Intake valve ... 2.343 .005 in.(59.51 0.13 mm)(6) Angle of valve face (earlier and later) ... 441/4° (7) Depth of bore in head for valve seat insert ... .509 .001 in.(12.93 0.03 mm)(8) Diameter of valve seat insert ... 2.5030 .0005 in.(83.576 0.013 mm) Bore in head for valve seat insert ... 2.5000 .0005 in.(83.500 0.013 mm)(9) Angle of face of valve seat insert ... 45°(10) Maximum permissible width