Dell polarity?

But to further expound on "polarity", general accepted electron theory sez, electrons (which are "sparkies") flow from MINUS (-) to POSITIVE (+). Yer TV screen (except the new LCD's) is very POSITIVE and attracts electrons from the HOT CATHODE (-) and lites up the screen as the magnetic coils deflect the electrons in synchronized sweep. The TV tube is also very VACUUM and that also sucks the sparkies across from the cathode emitter to the faceplate attractor screen.

What does this haffta do with yer tractor sparkies??? Glad you asked. Yer tractor engine sparkies EXPLODE the mixture by jumping a gap, forcing the piston down and turns the crankshaft roundy-round. Defining EXPLOSION as high-PRESSURE event, just the opposite of vacuum ain't it.

Note: the distance from back of TV to screen front and note the sparkie gap. Yet surprizingly enuff, the kilovolts are just about the same. Wow, watta concept.

But heres the deal about sparkies, theys lazy. And once the gap ionization potential is reached, gazappo!!! no matter how HOT (kilovolts) yer sparkies are. The gap ionization potential is governed mostly by the compression pressure, engine temp, and the condition of the electrodes that form the gap. (0.025" for N-Tractors but can be as wide as one-thin dime 0.065" which will need MORE SPARKIE KILOVOLTS)

Electrons jump eaziest from SHARP un-corroded metal corner. But as a natural by-product of combustion, the HEAT of COMBUSTION MELTS the sharp corners of the electrodes and rounds them off. Making it more difficult for the sparkies to jump the gap.

Eventually, yer sparkie coil will run outta kilovolts and will start to "miss"; most notably at high speed or COLD engine at start-up time.

What does this have to do with coil polarity??? You can loose upto 25% of yer sparkie kilovolts with incorrect coil polarity. (Laws of Magnetism) It has 'nuttin' to do with battery polarity, per see. And surprizingly enuff, GROUND can be positive and negative at the same time. (long story) Don't that just blow yer mind???

The unknown thing about sparkie coil polarity, it don't hardly matter ennymore. Why? Improved sparkplug manufacturing material and design slowdown the erosion of the plug gap and even weak sparkies (remember the loss of 25% of sparkie kilovolts due to incorrect polarity?) will still sparkle yer sparkies fer long time runnin. ..... ..Dell, yer self-appointed sparkie-meister

I may be wrong, but I am pretty sure Dell is Negative.

That don't make me like him NO less.

You just deal with the static, errr not..

Oh, well, back to the drankin' bunch..

• 50 Tips

As you have already learned, your engine will run with the coil wired in either direction.

Are you sure it was wired backwards? How it is connected to the distributor depends upon whether your tractor has the original positive ground system or has been converted to a negative ground system as is almost always done when converting to 12V.

If it is positive ground, the + terminal should be connected to the distributor primary wire. If it is negative ground, connect the - terminal to the distributor primary wire.

Dean

• Hobby farm

Dean

• Hobby farm