Calibration shaft assembly for engine valve adjustment

Details Calibration shaft assembly for engine valve adjustment Calibration shaft assembly for engine valve adjustment

1975-05-30

1976-06-22

Martin, Jr., William D.

Geometrical instruments

Area integrators

Electrical

33169B, G01B 514

Patent

active

039641724

ABSTRACT:
For adjusting the valves in an automotive, internal combustion, overhead cam engine, a cylindrical calibration shaft with end bushings is mounted in place of the engine camshaft. The radius of this calibration shaft is equal to the minimum cam radius on the engine camshaft. Clearances of the valve tappets from the calibration shaft are determined by feeler guages or by cross pins on the calibration shaft which are slidably adjustable to engage the tappets and then are locked in place on the calibration shaft.

REFERENCES:
patent: 2117854 (1938-05-01), Price
patent: 2155562 (1939-04-01), Price
patent: 3829979 (1974-08-01), Stewart

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