40003 35 Mercury SCREW, REAR COWL BRACKET

(1) 2S4213 Spring for valves (new): Color code ... Blue (two coils)Length under test force ... 1.950 in.(49.53 mm)Test force ... 55 3.5 lb.(245 15.5 N)Use again minimum load at length under test force ... 49 lb.(220 N)Length of spring at valve open position ... 1.472 in.(37.39 mm)Use again minimum load at valve open position ... 136 lb.(605 N)Free length after test ... 2.31 in.(58.7 mm)Outside diameter ... 1.486 in.(37.74 mm)Spring must not be bent more than ... .081 in.(2.06 mm)(2) Length of valve guide ... 2.872 in.(72.95 mm)(3) Diameter of valve stem: (new) 2M6402 and 2M6403 Valves ... .3720 .0005 in.(9.449 0.013 mm)1P407 and 1P2629 Valves ... .3717 .0003 in.(9.441 0.008 mm)Use again minimum ... .3704 in.(9.408 mm)Bore in valve guide with guide installed in the head:2M6414 Guide ... .3751 .0007 in.(9.528 0.018 mm)9S9040 Guide ... .3748 .0007 in.(9.520 0.018 mm)Maximum permissible diameter of bore in valve guide:2M6414 Guide ... .3782 in.(9.606 mm)9S9040 Guide ... .3780 in.(9.601 mm)(4) Bore in head for valve seat insert for intake valve ... 1.8090 .0005 in.(45.949 0.013 mm) Diameter of valve seat insert for intake valve ... 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 valve ... 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) "Use again" thickness of valve lip ... .080 in.(2.03 mm)(7) Diameter of valve head: Intake valve ... 1.771 .005 in.(44.98 0.13 mm)Exhaust valve ... 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 valve ... .060 in.(1.52 mm) Width of the face of valve seat insert for exhaust valve ... .074 in.(1.88 mm)(10) Angle of face of valve seat insert ... 45°Angle to grind seat face of the insert to get a reduction of maximum seat diameter ... 15°(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)(With 4N3665, 4N3666 and 6N2236 Guides)
GUIDELINES FOR REUSABLE PARTS; VALVES AND VALVE SPRINGS, Form SEBF8002, has the procedure necessary for checking used valves and valve springs. (1) 2S4213 Spring for valves (new): Color code ... Blue (two coils)Length under test force ... 1.950 in.(49.53 mm)Test force ... 55 3.5 lb.(245 15.5 N)Use again minimum load at length under test force ... 49 lb.(220 N)Length of spring at valve open position ... 1.472 in.(37.39 mm)Use again minimum load at valve open position ... 136 lb.(605 N)Free length after test ... 2.31 in.(58.7 mm)Outside diameter ... 1.486 in.(37.74 mm)Spring must not be bent more than ... .081 in.(2.06 mm)(2) Length of valve guide ... 2.85 .04 in.(72.4 1.0 mm)(3) Diameter valve stem (new) ... .3717 .0003 in.(9.441 0.008 mm) Use again minimum ... .3704 in.(9.408 mm)Minimum permissible bore in valve guide with guide installed in the head:4N3665 Guide ... .3741 in.(9.502 mm)4N3666, 6N2236 Guide ... .3727 in.(9.467 mm)Maximum permissible diameter of bore in valve guide (worn) ... .3780 in.(9.601 mm)(4) Bore in head for valve seat insert for intake valve ... 1.8090 .0005 in.(45.949 0.013 mm) Diameter of valve seat insert for intake valve ... 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 valve ... 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) "Use again" thickness of valve lip ... .080 in.(2.03 mm)(7) Diameter of valve head: Intake valve ... 1.771 .005 in.(44.98 0.13 mm)Exhaust valve ... 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 valve ... .060 in.(1.52 mm) Width of the face of valve seat insert for exhaust valve ... .074 in.(1.88 mm)(10) Angle of face of valve seat insert ... 45°Angle to grind seat face of the insert to get a reduction of maximum seat diameter ... 15°(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 to top of valve guide ... 1.192 .020 in.(30.28 0.51 mm)