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New Hei No Spark


m00k_

Member
Joined
Jul 28, 2024
Messages
11
City
Illniois
Vehicle Year
87
Transmission
Manual
I'll begin by saying new is a semi loose term here, the distributor is 3 years old but it's been in a box on a shelf, never ran before. Cheap ebay unit.

Trying to get my 302 fired up for the first time in the ranger, got it all setup started to time with my timing light, no issues, had spark. Realized in my haste I mixed up a couple plug wires, so pulled the offending wires off and corrected them. Went to time the engine again, got one flash of the timing light and now it won't spark at all.

I made sure the dizzy has 12v at the batt terminal. This does drop to 10.5 while the starter is cranking.

Dizzy is outputting tach signal, so thinking maybe the problem isn't in the module or magnetic pickup coil, but this may not be a safe assumption.

I tested the ignition coil and pickup coil with a my DVOM.

ign coil primary winding had 1ohm resistance. Secondary winding had 8k ohms. Pickup coil had 9k ohms resistance.

From what I can find online these numbers seem within spec.

Is there any possibility the ign coil is bad even though the resistance reading seem to be in normal range?

This has got me scratching my head.

Thanks.
 

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