Coil wires

kyphonii · Post by **kyphonii** » Mon Aug 23, 2010 5:21 pm

I have a 1986 Subaru leone and the wires off the coil to the distributor are not connected so just checking that the yellow is to positive.
Thanks

tex · Post by **tex** » Tue Aug 24, 2010 5:09 pm

I can't tell you exact colours as most I've seen have been mixed up! Have a look at the dizzy the colour of the wire that goes in will be the neg. wire but to be honest I don't think the polarity in and out of your coil matters much. but do you have a big white ceramic thing on top called a ballast resistor?

steptoe · Post by **steptoe** » Tue Aug 24, 2010 10:02 pm

I have yellow wires marked as NEG and connected to NEG of the coil on my 86 L Series EA82T . I gues by now you have worked it out. The blacks and black with red go to POS

kyphonii · Post by **kyphonii** » Fri Aug 27, 2010 5:25 pm

steptoe wrote:I have yellow wires marked as NEG and connected to NEG of the coil on my 86 L Series EA82T . I gues by now you have worked it out. The blacks and black with red go to POS

Yes as mine is but it had me thinking. The multi meter has them both as positive, how is that working. it has me perplexed.

fredsub · Post by **fredsub** » Fri Aug 27, 2010 7:12 pm

kyphonii wrote:Yes as mine is but it had me thinking. The multi meter has them both as positive, how is that working. it has me perplexed.

The coil is negative switched, ie to ground.
So your probing with the multimeter and seeing +12 volts on both terminals,
well thats good, it hasn't gone open circuit.

The points, or electronic dizy will close, that will drive one terminal to 0V, and
a current will pass through it. When the points then open again, the coil
will produce its high voltage that fires the spark plugs.

Note, the electronic dizzy has a built in feature to open the "points" - actually a transistor switch - when the ignition is ON and engine is not rotating.
And for that reason they don't require a ballast resistor either.

kyphonii · Post by **kyphonii** » Fri Aug 27, 2010 7:58 pm

fredsub wrote:

The coil is negative switched, ie to ground.
So your probing with the multimeter and seeing +12 volts on both terminals,
well thats good, it hasn't gone open circuit.

The points, or electronic dizy will close, that will drive one terminal to 0V, and
a current will pass through it. When the points then open again, the coil
will produce its high voltage that fires the spark plugs.

Note, the electronic dizzy has a built in feature to open the "points" - actually a transistor switch - when the ignition is ON and engine is not rotating.
And for that reason they don't require a ballast resistor either.

Many thanks for the help , greatly appreciated.
Thanks

steptoe · Post by **steptoe** » Sat Aug 28, 2010 2:25 am

thank you for coming back in to finish the thread off, some newcomers do not.