Ignition issue : Mallory Hyfire 6al / Coil testing

[RAP260]

Afternoon all 

The distributor ( unilite ) is getting 12v. And I've tested the resistance on the coil, which seems to be within the recommended ranges. 

Was warming the car up to go for a run, and it just stopped, very suddenly. Fuel pressure is good. Checked all the fuses. 

Cheers, 

Rob 

 

Edited November 9, 2019 by RAP260

[RAP260]

Tried the white wire test procedure, per msd instructions. Definitely not working. 

So it's either the coil or the controller, just don't won't to start replacing parts ad-hoc. Don't have a spare coil unfortunately and I really wanted to avoid rewiring the ignition system, just to check the coil. 

Any one got any other suggestions for testing a coil, other than resistance? 

[RAP260]

Problem solved. One dead 6al. 

Rewired the coil / distributor , fired straight up. Time to go buy a ballast resistor and bin the 6al.