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Aug 25, 2022 | 08:55 PM

bobby70

Thread Starter

Racer

Joined: Dec 2012

Posts: 487

Likes: 66

From: Rhode Island

Msd

HI all walked out to my car 1970 small block to go for a ride will not start so I have a msd 6a box to test it no spark ,so how can you test the msd blaster coil before I buy a new box thanks for your help

Aug 26, 2022 | 09:38 AM

wilcar

Drifting

Joined: Mar 2006

Posts: 1,263

Likes: 188

From: Wabasha Mn

Quote:

Originally Posted by bobby70

What kind of distributor are you using? If hei it could be the ignition control module. Use your old coil if still good and disconnect your "box". Nothing wrong with using your old points distributor if you still have it. Standard Motor Products still has quality ignition parts if you decide to get rid of your hei set up. Do you really need the "box"??

Aug 26, 2022 | 12:22 PM

carriljc

Le Mans Master

Joined: Jan 2001

Posts: 6,722

Likes: 1,376

I would just buy a generic gm coil and hook it up to see if it works. And then you'd have a spare.

Quote:

Originally Posted by bobby70

Aug 26, 2022 | 01:41 PM

kossuth

Burning Brakes

Joined: Jan 2003

Posts: 961

Likes: 275

From: Frederick MD

If you have an 6A box its pretty simple to test the coil. Connect the coil to the coil wires on the box, get power and grounds to the box, hook a spark plug wire or similar to the coil output, and then short the two magnet pickup wires together. By shorting those out the box will trigger and fire off the coil.