TUNING AN OVERHEAD VALVE INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
Sep 13, 2011
filing date -
Jul 28, 2011
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Abandoned
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Abstract
In a drag racing vehicle, especially one utilizing a V-block engine, valve gap measurement and adjustment, valve spring force measurement, and the like are carried out with the aid of a foot-operated switch removably connectible to a circuit that carries battery current to the vehicle's starter motor. The foot switch is provided with a cable allowing it to be positioned in either side of the vehicle. Operation of the foot switch effects rotation of the engine crankshaft and camshaft through a small angle so that each valve can be brought to a fully closed condition for measurement or adjustment.
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