[Healeys] Coil Connections

[Richard Ewald]

The amount of energy available is going to be the same either way you wire
the coil, but if it is wire backward, it takes more energy to ionize the
gap, so you wind up with a weaker spark.   Not usually a problem, but it
does make the scope pattern upside down.
Rick

On Sat, Oct 6, 2012 at 4:46 PM, Bob Spidell <bspidell at comcast.net> wrote:

> SW = (ignition) SWitch
> CB = Circuit Breaker (points)
>
> For a pos. grnd. car, with points, you want (+) to go to ground, through
> the points.
>
> IIRC, the white wire is from the ignition switch, and the b/w wires go to
> the distributor/points and to the battery cutoff switch in the boot (both
> ground the coil, the points intermittently and the cutoff switch
> 'permanently' so the engine can't start).
>
> And, yes, it matters because in most coils the primary and secondary wires
> are wound in series, which gives more output voltage hence a stronger spark.
>
> Bob
>
>
>
> --------------------------------
> Bob Spidell - San Jose, CA
>
> ----- Original Message -----
> From: "Price Lindsay" <050.rpl at gmail.com>
> To: "Healey List Healey List" <healeys at autox.team.net>
> Sent: Saturday, October 6, 2012 2:33:50 PM
> Subject: [Healeys] Coil Connections
>
> I have switched my points to a positive ground Pertronix system. In doing
> this
> I also switched my coil to a Flamethrower. The system works great but in
> the
> event of a failure, I have kept the original setup of points and condenser.
>
> On the Flamethrower coil there is a positive and a negative terminal. On my
> old coil there are SW and CB terminals.
>
> If I go back to points and use the Flamethrower coil, to which terminal do
> I
> attach the white wire - positive or negative? I presume the two black and
> white wires would then go to the other terminal.
>
> OR
>
> Do I reinstall my old coil as well when or if I go back to points and use
> the
> SW for the white wire and CB for the black and white wires?
>
> Thank you.
>
> Price Lindsay
> 67 BJ8
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