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Old 02-06-2006, 12:36 AM   #1
Xander_42
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Bad Coil?

My 510 has/had an MSD blaster 2 coil (PN 8203). Recently my car started missfiring mildly and infrequently. Then it started missfiring more frequently and more violently, until it was harly drivable, so when I brought it home I started trying to figure what the problem was, and at some point during that period it stopped starting altogether. I decided that it was probably the coil, so I pulled it and tested it, it is pulling nearly twice the resistance that MSD's specs say it should be. MSD's specs are: Primary Resistance .7 ohms, and Secondary Resistance 4.7k ohms. Is this enough of a problem, to cause the car to not run at all? If not what else could it be.

Thanks very much.
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1972 Datsun 510
2.0L 8-valve (all right!) SOHC i4
Weber 32/36 DGV carb
2" man-back exhaust
Magnaflow muffler
Lightened 240Z flywheel and 280Z clutch
Did I mention, really fresh blue paint?
That's all as of yet
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