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When it is time for a spark plug to fire, the rotor (the blue bar shown in the distributor in the figure above) connects the center electrode of the distributor cap to an electrode connected to a spark plug wire. This occurs simultaneously with the points opening and the coil delivering a high voltage to the center electrode.
Alternator (silver) mounted on a V8 engine Alternator voltage regulator (brushes are worn out) An alternator is a type of electric generator used in modern automobiles to charge the battery and to power the electrical system when its engine is running. Until the 1960s, automobiles used DC dynamo generators with commutators.
dynamo/alternator diode+ D- dynamo/alternator diode- DF dynamo field DF1 dynamo field 1 DF2 dynamo field 2 U, V, W AC three phase terminals Lights 54 brake lights 54g lights 54 55 fog light N 56 spot light 56a headlamp high beam and indicator light 56b low beam F 56d signal flash 57 parking lights 57a parking lights P 57L parking lights left PL 57R
January 2014) (Learn how and when to remove this message) A timing chest or valve chest is a compartment on an internal or external combustion engine (e.g. gasoline or steam engine ) which provides access to the tappets and valves.
Spark plug wires (also called high tension leads) are electrical cables used by older internal combustion engines to transmit high-voltage electricity from the distributor to the spark plugs. Tension in this instance is a synonym for voltage .
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The ignition coils for these can be combined into a single casing (a coil pack) and located away from the spark plugs; however it is increasingly common for coil-on-plug systems to be used, whereby the individual ignition coils are small units attached directly to the top of each spark plug. An advantage of coil-on-plug systems is that in the ...
The actual voltage, matching the car battery's voltage, will be approximately 12.5 volts when dormant (less in cold conditions), approximately 14.5 volts when the engine and the alternator/generator are operating (more when cold), and may briefly drop as low as 5–6 volts during engine start due to the high temporary battery current usage. [12]