854217 Mercruiser COVER

Illustration 1 g01021601
Typical example
(1) Height to the top of the valve guides ... 26.00 0.50 mm (1.024 0.020 inch) (2) 194-4901 Spring Length under test force ... 59.3 mm (2.33 inch)Test force ... 562 28 N (126 6 lb)Free length after test ... 75.8 mm (2.98 inch)Outside diameter ... 43.5 mm (1.71 inch) (3) 194-4902 Spring Length under test force ... 50.3 mm (1.98 inch)Test force ... 146 7 N (33 2 lb)Free length after test ... 60.7 mm (2.39 inch)Outside diameter ... 30.7 mm (1.21 inch) (4) Washer (5) Valve stem seal Install the valve stem seals to the intake valves. Install the washers to the exhaust valves. (6) Valve stem diameter and valve guide bore Diameter of the new valve stems in the area of the valve guide Intake ... 9.441 0.01 mm (0.3717 0.0004 inch)Exhaust ... 12.573 0.01 mm (0.4950 0.0004 inch)Bore for intake valve guide ... 9.487 0.025 mm (0.3735 0.0010 inch)Bore for exhaust valve guide ... 12.619 0.025 mm (0.4968 0.0010 inch) (7) Diameter of the valve heads ... 56.00 0.15 mm (2.205 0.006 inch) (8) Angle of the valve faces: Inlet ... 19.40 0.25 degreesExhaust ... 44.40 0.25 degrees
Illustration 2 g01127866
Typical example
(9) Depth of bore in head for valve seat inserts ... 14 0.15 mm (0.551 0.006 inch) (10) Diameter of valve seat inserts: Inlet ... 60.627 0.015 mm (2.3869 0.0006 inch)Exhaust ... 60.119 0.015 mm (2.3669 0.0006 inch)Bore in head for valve seat inserts Inlet ... 60.508 0.025 mm (2.3822 0.0010 inch)Exhaust ... 60.000 0.025 mm (2.3622 0.0010 inch) (11) Angle of face of valve seat inserts Inlet ... 20 0.25 degreesExhaust ... 45 0.25 degrees (12) Outside diameter of the face of the valve seat inserts ... 53.60 mm (2.110 inch)Type 2
Illustration 3 g00114735
Typical example
(1) Height to the top of the valve guides ... 26.00 0.50 mm (1.024 0.020 inch) (2) 101-1180 Spring Length under test force ... 57.36 mm (2.258 inch)Test force ... 450 23 N (101 5 lb)Free length after test ... 70.55 mm (2.778 inch)Outside diameter ... 43.66 mm (1.719 inch) (2) 316-5976 Spring Length under test force ... 60.29 mm (2.374 inch)Test force ... 460 23 N (103 5 lb)Free length after test ... 74.8 mm (2.94 inch)Outside diameter ... 43.47 mm (1.711 inch) (3) 101-1177 Spring Length under test force ... 46.49 mm (1.830 inch)Test force ... 133 7 N (30 2 lb)Free length after test ... 55.54 mm (2.187 inch)Outside diameter ... 28.68 mm (1.129 inch) (3) 316-5977 Spring Length under test force ... 57.5 mm (2.26 inch)Test force ... 248 12.4 N (56 2.79 lb)Free length after test ... 71.4 mm (2.81 inch)Outside diameter ... 30.7 mm (1.21 inch) (4) Valve stem diameter and valve guide bore Diameter of the new valve stems in the area of the valve guide ... 9.441 0.008 mm (0.3717 0.0003 inch)Bore in the valve guides ... 9.487 0.025 mm (0.3735 0.0010 inch) (5) Diameter of the valve heads ... 56.00 0.15 mm (2.205 0.006 inch) (6) Angle of the valve faces: Inlet ... 19.40 0.25 degreesExhaust ... 44.40 0.25 degrees
Illustration 4 g00122935
Typical example
(7) Depth of bore in head for valve seat inserts ... 14 0.15 mm (0.551 0.006 inch) (8) Diameter of valve seat inserts: Inlet ... 60.627 0.015 mm (2.3869 0.0006 inch)Exhaust ... 60.119 0.015 mm (2.3669 0.0006 inch)Bore in head for valve seat inserts Inlet ... 60.508 0.025 mm (2.3822 0.0010 inch)Exhaust ... 60.000 0.025 mm (2.3622 0.0010 inch) (9) Angle of face of valve seat inserts Inlet ... 20 0.25 degreesExhaust ... 45 0.25 degrees (10) Outside diameter of the face of the valve seat inserts ... 53.60 mm (2.110 inch)