Dearborn5.0

Someone who has a great running car, and MSD Blaster TFI Coil, please take the
resistance across the primary and secondary side of the coil and let me know the values. I think my coil is bad.

What i mean is....take a voltmeter, put it on ohms, remove the connector with the little wires (primary) and read the ohms in from the + to the -

Then take the 8mm (big) ignition wire off, and measure resistance from the big post to the battery negative terminal. (secondary)

Please reply with your numbers.

Please more than 1 person apply.


Background
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I'm getting no spark. Tested coil wire, ok. (3K ohms) grounded coil wire & spark plug (to valve cover) while cranking, no spark.

Put ignition in run position, grounded coil manually to battery neg, got a spark to
jump from coil primary negative to battery post neg.

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I think my coil has shorted itself . Please reply with ohm values.

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silver91gt

around 8000 ohms between the positive and negative plug terminals
and from the plug terminal to the spark plug part it is 7 ohms

silver91gt

or mabye its the other way around, I did it last week.

Dearborn5.0

Thanks silver. Anyone get the same?

Dearborn5.0

Follow-up: My coil checked with silver and MSD specs on MSD's website.

Turns out the TFI module went bad. The coil was okay.

MSD replied to my question by saying "replace your old coil with theses new MSD products...." The did not answer my question. Idiots. [:'(]