| 1. | But one essential part-- the cam shaft-- has changed little over time.
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| 2. | The cam shafts are slightly radicalized, and the exhaust system is upgraded.
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| 3. | Liquid cooled double overhead cam shaft with four valve desmodromic cylinder head.
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| 4. | Makes a good strong tool, heavy gear, or cam shaft.
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| 5. | The cam shaft works something like a large, eccentrically shaped key that turns many locks simultaneously.
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| 6. | Note that an electromechanically-actuated inlet valve does not require complicated valve gear ( cam shafts, etc ).
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| 7. | The cam shaft is rotated and, according to the cam profile, the follower moves up and down.
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| 8. | The final incarnation of the 128 SOHC engine was modified to utilise 16 valves and dual cam shafts.
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| 9. | I can't watch the Brickyard 400 without getting an irresistible urge to run out and grease a cam shaft.
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| 10. | A timing assembly rotates the cam shaft, which in turn opens and closes the engine's valves in elaborate, mechanical synchrony.
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