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1. It is the best of all to make this check by means of a special tester. Now three types of testers of ignition were widely adopted. The inductive principle of functioning of a neon lamp is the basis for a design of the first of them; the device just nestles on a candle wire and the regular blinking of a lamp confirms serviceability of giving on the corresponding candle of VV of tension. Testers with the adjustable air gap which is adjusted according to performance data of a spark plug are issued. One more tester externally looks as the spark plug equipped sideways with the grounding plug, but without side electrode. Testers of two last types allow not only to check serviceability of giving for tension VV candle, but also (on color of flash) to estimate intensity of sparking, - the weak spark differs in yellow-orange color, strong - blue. |
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2. Professionals usually use an oscilloscope for this check, one of working wires of which is equipped with the inductive sensor connected to VV to a wire, the second - the plug allowing to ground the device on weight.
3. Disconnect a wire from a spark plug and connect it to a tester. Ground the device on the mass of the power unit.
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When using a tester with the neon indicator need for a detachment of an electrical wiring is absent. In the absence of near at hand tester it is enough to delay a rubber cover of a tip of a candle wire up and to bring plugs to the mass of the engine on distance about 6 mm and to watch intensity of sparking. |
4. Turning the engine, watch the spark which is formed between tester plugs 5. Existence of a spark of bright blue color confirms serviceability of giving on tension VV candle. 6. In the absence of sparking first of all it is necessary to check a condition of a candle wire, then to pass to diagnostics of separate components of system of ignition. |