I would bet the coil is shorted out to the case. Replace it. ---- Frederick Joslin <fljoslin@xxxxxxxx> wrote: ============= There are some tests that you can do on a coil for resistance across the different windings. I do not know what the specs are, but you should be able to do this with the coil in the car. Also, the coil should be getting about 6 volts (or at least much less that full voltage ) with the key in the ignition position.This would be worth testing. Good luck. ----- Original Message ----- From: "Kenyon Wills" To: IML Subject: IML: arc-ing coil - rough running 440 Date: Thu, 1 Mar 2007 13:08:59 -0800 (PST) Car ran fine and has what I thought to be a newer coil. Picked the car up from the tire place and it's engine is missing significantly, and the battery was dead at pickup time. Newer battery, so that's not a suspected part of the dead charge problem. With engine off, but key to "run" position, the coil is making a snapping, buzzing sound internally. Closer inspection shows that coil is discharging volts and zaps of electricity, especially if you touch it(!) Going gack in with a screwdriver instead of a finger shows arcs like crazy with the engine still. Wires to coil are clean and not appear to be touching ground far as I can tell. Coil and plug wire set are new. Bad coil? Bad ignition module or magnet on the distributor? Engine is rebuilt and everything is pretty fresh besides the electronic ignition module - stock unit on the '72. Coils are supposed to be pretty durable. Could be this one's a goner, but before I take it out, any other ideas? -Kenyon ____________________________________________________________________________________ TV dinner still cooling? Check out "Tonight's Picks" on Yahoo! TV. http://tv.yahoo.com/ ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm Fred Joslin ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm