Hitchcocks Forum

Reply to the ignition coil topic.
As simon says, to me a coil is similar to a transformer. If 12 volts goes in 1200 volts (100 to 1 ratio)comes out, if 13 volts goes in (more engine revs) 1300 volts comes out. Some coils, high tension leads, spark plug caps and spark plugs can have resistors in to limit the voltage. If you leave the ignition key switched on (engine stopped) and the points are closed then you have a full circuit which could burn the coil out. Some old 12 volt cars had a 6 volt ignition system but when in the starting position the circuit had 12 volts - minus the reduced cranking voltage so around 10 volts.

Jaffa90, I had something called ad-block on my browsers, and it made the add topic button disappear from sarafi, firefox and chrome!



disabled it, and all worked fine!



may not be the same for you?

Thanks for that Scalyback,did something with the pop up blocker.

Oh dear,i cannot reply to the CHARGING topic,the (Post Reply) box not showing,page not long enough?