Re: [AMC-list] sheesh! f'!@!@!@ing

[Frank Swygert <farna@xxxxxxx>]

All points type coils are basically 6V devices that get 12V applied for a hotter sprak when starting then the voltage gets cut back to around 8V for continuous running. Some of the newer (late 70s+) coils are 12V devices that get a full 12V all the time -- the electronic ignition handles any changes in spark. That doesn't apply to something like a Pertronix. It doesn't control the coil, just replaces the points. Points don't handle high current (amps) very well, that's why when used with something like an MSD ignition box they last so much longer -- very little current through the points, they are just used as a trigger switch, sort of like a relay.

Not only do you need the right TYPE of coil as Mark pointed out, you also need the correct resistance coil. AMC used Delco (GM -- typically with resistance built into the coil) or Autolite (Ford -- typically with an external resistance, either ballast resistor or resistance wire) points ignition systems. Most of the early electronic ignitions used similar setups, but later ones don't. As far as I recall the Duraspark still uses a resistance wire in the system. So that's the first clue -- does the car have a Delco or Autolite system? Get a coil for any GM or Ford car of the same era and you'll be fine.

---------------------
Date: Mon, 31 May 2010 02:57:03 +0000
From:wrambler242@xxxxxxxxxxx

Depends.
Some had a resistor wire.
Some had a resistor.
Some coils have the resistance built into them.

Each person needs to figure out what should be in the car. The big deal is What is in it now and what does my planned system need?

--
Frank Swygert
Publisher, "American Motors Cars"
Magazine (AMC)
For all AMC enthusiasts
http://www.amc-mag.com
(free download available!)

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