coils

[BDilgard]

i have serveral car coils (ford) with & without resistor build in, which one should i use on my 2hp united ?

[John Newman, Jr.]

From what I know, the coils with a built in resistor can operate on 12v while the ones that require a separate resistor are 6v (the resistor drops the 12v to 6v). So basically it then depends on what kind of battery you wish to use.

[BDilgard]

i use a 12 volt small battery 1.8 amps ,would using the 12volt coil with the resistor build in, be ok, with out resistor have weld points before.but boy does that ignitor set a blue spark.

[Elden DuRand]

Originally Posted by BDilgard

i use a 12 volt small battery 1.8 amps ,would using the 12volt coil with the resistor build in, be ok, with out resistor have weld points before.but boy does that ignitor set a blue spark.

In place of the resistor, you can use a 12-Volt brake light bulb, one that draw about one amp.

Just connect it in series with the coil and away you go. If you can't get a hot enough spark to start the engine, just short out the bulb 'til she's runnin' then remove the short.

Nice thing about this arrangement is that, if your engine quits when you're not there (that's the time most of 'em stop) and it stops with the ignitor points closed (How else!), the bulb will keep you from having to scrape the coil guts off of everything.

Take care - Elden

[Tilinghast]

Elden...you certainly have a way with words !!!
Dave.

[BDilgard]

Originally Posted by Elden DuRand

In place of the resistor, you can use a 12-Volt brake light bulb, one that draw about one amp.

Just connect it in series with the coil and away you go. If you can't get a hot enough spark to start the engine, just short out the bulb 'til she's runnin' then remove the short.

Nice thing about this arrangement is that, if your engine quits when you're not there (that's the time most of 'em stop) and it stops with the ignitor points closed (How else!), the bulb will keep you from having to scrape the coil guts off of everything.

Take care - Elden

SO USING THE 12 VOLT COIL WITH THE RESISTOR BUILD IN, WOULD BE A GOOD IDEA , CORRECT, THANKS , AND WITH MY UNITED THE POINTS ARE NORMALLY OPEN TILL IT TRIPS, BUT HAVE HAD A FRIEND WELD POINT ON HIS FAMOUS UPRIGHT , DOES A NICE JOB TOO THANKS AGAIN

[Elden DuRand]

Originally Posted by BDilgard

SO USING THE 12 VOLT COIL WITH THE RESISTOR BUILD IN, WOULD BE A GOOD IDEA , CORRECT, THANKS , AND WITH MY UNITED THE POINTS ARE NORMALLY OPEN TILL IT TRIPS, BUT HAVE HAD A FRIEND WELD POINT ON HIS FAMOUS UPRIGHT , DOES A NICE JOB TOO THANKS AGAIN

I think you can use either a 6 or a 12 Volt coil with the light bulb. You could use an old fashioned 2 pole knife switch. Straight up (switch not making to either side) would be off. One side is the coil with the lamp in series and the other side has the bulb shorted and the battery going directly to the coil.

Take care - Elden