Cylinder Head Valves
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Illustration 1 | g01014579 |
Note: Refer to Guidelines For Reusable Parts, SEBF8002 and SEBF8034, "Valves And Valve Springs" in order to check used valves and valve springs.
(1) 4N-5906 Spring
- Length under test force ... 54.99 mm (2.165 inch)
- Test force ... 344 ± 34 N (77.3 ± 7.6 lb)
- Length at valve open position ... 42.93 mm (1.690 inch)
- Free length after test ... 62.7 mm (2.47 inch)
- Outside diameter ... 31.75 mm (1.250 inch)
- Test force ... 344 ± 34 N (77.3 ± 7.6 lb)
(2) Height to top of valve guide
- Inlet ... 26 ± 0.8 mm (1.0236 ± 0.0315 inch)
- Exhaust ... 32.3 ± 0.8 mm (1.2717 ± 0.0315 inch)
(3) Diameter of new valve stem
- Inlet ... 9.441 ± 0.008 mm (0.3717 ± 0.0003 inch)
- Exhaust ... 9.441 ± .01 mm (0.3717 ± 0.0004 inch)
Minimum diameter of the valve stem
- Inlet ... 9.309 mm (0.3665 inch)
- Exhaust ... 9.309 mm (0.3665 inch)
Bore in a new guide ... 9.502 mm (0.3741 inch)
(4) Diameter of valve head
- Inlet ... 44.98 ± 0.13 mm (1.771 ± 0.005 inch)
- Exhaust ... 41.81 ± 0.13 mm (1.646 ± 0.005 inch)
(5) Angle of valve face ... 19.25 ± 0.25 degrees
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Illustration 2 | g01014632 |
(6) Depth of bore in head for new valve seat insert ... 12 ± .1 mm (0.4724 ± 0.0039 inch)
(7) Diameter of valve seat insert
- Inlet ... 46.025 ± .015 mm (1.8120 ± 0.0006 inch)
- Exhaust ... 42.840 ± .015 mm (1.6866 ± 0.0006 inch)
Bore in head for valve seat insert
- Inlet ... 45.949 ± 0.025 mm (1.8090 ± 0.0010 inch)
- Exhaust ... 42.774 ± .025 mm (1.6840 ± 0.0010 inch)
(8) Angle of valve insert face ... 20.25 ± 0.5 degrees
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