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Q: Why no spark at coil with 12 volt going in?
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What happens if you use a 12 volt coil with a 6 volt system?

Probably not much because 6 Volts is not enough to power a 12 Volt coil


Do you replace the coil from a 6 volt to a 12 volt when converting from 6 volt to a 12 volt system?

Yes. Since the coil is run at full voltage when starting 12 volts may be too much for a 6 volt ignition coil. It would be at about 8 volts when running. There is a starting resistor.


What is the number of turns in primary and secondary coil for 12 volt battery charger with 220 volt power supply?

what is the number of turns in the primary and secondary coil for 12 volt battery charger with 220 volt power supply> what is the number of turns in the primary and secondary coil for 12 volt battery charger with 220 volt power supply>


How can you make a spark plug spark with a battery and ignition coil?

You apply 12 volts to the coil primary and then release it . The electricity will go through the secondary coil and spark the spark pug.


What does coil do on 2001 3.9 Dakota?

The ignition coil on any engine converts the 12 Volt electrical charge from your battery into massive electrical voltages (over 100,000 Volts in some cases) which are then directed to the distributor, or, in some cases, directly to the spark plug.


I have a 1969 cj5 that dies without warning. I am getting no spark from the coil I have replaced the coil?

Have you checked the ignition switch to ensure that it is constantly on? Put a 12 volt light between the coil primary positive, and a suitable ground, and position the light where you can watch it while driving. It should never flicker or go out.


What is Purpose of ignition coil in gasoline engine?

The purpose of the ignition coil is to take the low 12 volt current from the cars battery/altenator and convert it to 20,000 volts (or more) so that the spark plugs will ignite the fuel/air mixture in the combustion chamber of the engine.


What voltage is the hot wire to the coil on a 1985 s10 blazer 2.8?

12 volt.


1988 jaguar 12 cylander why is there no spark at coil?

Lack of "Spark" at coilI'm not sure what you mean "at" the coil.A vehicular ignition coil is a transformer [with two separate coils (windings) inside] that takes a 12 Volt [usually] signal pulse of electricity from the ignition points [or ignition computer if so equipped] an uses that pulse to energise its primary [low voltage]winding.When the signal pulse current to the primary winding is turned off [upon points opening], the magnetic field in the primary winding collapses inducing a much larger current into the secondary [high voltage]. This secondary [high voltage] is then carried to the spark plug where it creates a spark at the plug's gap.IF the 12 Volt signal pulse is getting to the ignition coil, and its primary winding inside, BUT there is no high voltage at the coil output terminal [the "tower"] then the coil is defective [usually a broken or burned through wire in the primary or secondary windings inside the coil].IF there is NO electrical pulse getting TO the input terminal on the ignition coil, AND if it is not being turned ON and OFF then it cannot create a spark at the output terminal.Before replacing an ignition coil or coil pack, be sure that it's getting the proper signal to allow it to work.It is bad practice to replace components [parts] that are good!!!!!


How do cars shut off?

For those who don't know anything about ignition systems, heres a little insight on the subject: A basic ignition system consists of an ignition switch, ignition coil & distributor assembly or computer & coil packs, spark plug wires, and spark plugs. When the ignition switch is on, a 12 volt power supply runs to an ignition coil which amplifies the voltage to as high as 30,000 volts. The current then runs through a distributor assembly which directs and delivers the power supply in segments to the spark plugs through wires. The spark plugs "fire" which ignites the air/fuel mixture in the engines corresponding combustion chamber causing the reaction that produces the engines power. Vehicles with coil packs have the 12 volt power supply run through a computer which does the same thing as a distributor before sending the current through the coil packs and then to the spark plugs. When you turn off the vehicle, mechanical linkage running from the ignition key cylinder assembly separates two sections of the ignition switch that severs the 12 volt supply current to the rest of the vehicles ignition system, thereby disabling the ignition spark, stopping the combustion reactions, and stopping the engine.


What does it mean when i have no fire but i changed out my ignition coil and my pick up coil inside the distributor on a 1987 ford bronco 302 v8 fi?

Your coil has a positive and negative side and if there is no power to the positive side you will not have any spark: However, if you have no ground to the negative side you will have the same problem. Check for power and ground with a volt meter.To check for power, connect red lead from volt meter to positive side of coil and black lead to negative side of battery, you should read 12 volts with key on. To check ground, connect black lead from volt meter to negative side of coil and red lead to positive side of battery, you should read 12 volts with key on.


How do you use 12 volt battery on 6volt coil?

Use a rheostat to lower the voltage to six volts