Method of and apparatus for adjusting ignition timing by rotatin

Details Method of and apparatus for adjusting ignition timing by rotatin Method of and apparatus for adjusting ignition timing by rotatin

1989-07-17

1990-08-21

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Internal-combustion engine ignition system or device

Ignition timing

73116, 324380, 324385, 36443101, F02P 1700

Patent

active

049509969

ABSTRACT:
Ignition timing of an internal combustion engine of an automotive vehicle is automatically adjusted by idling the engine with a distributor whose coil terminal and spark plug terminals are disconnected from ignition circuit and detecting an spurious ignition signal for a specified cylinder from the distributor. The distributor is turned with respect to the engine through an angle in accordance with a difference between a rotated angle of the crankshaft of the engine from a detection of the spurious ignition signal to a provision of a top dead center signal and a predetermined angle of the crankshaft for an expected ignition timing.

REFERENCES:
patent: 4186337 (1980-01-01), Volk et al.
patent: 4417469 (1983-11-01), Stevenson et al.

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