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lorenr · 08-04-2022, 03:52 PM

I've been relying on MSD ignition products for over 30 years. Recently I had an issue that surprised me. It was two bad coils.

The item is: MSD Ignition 82073 - MSD Blaster SS Coils.

In all my years I cannot remember an ignition coil going bad. Decided to use the MSD 6 ignition box with the above coil on my Tournament Ski boat. Ford 351 W with Edelbrock intake and 1850 Holley. Worked fine for 18 years. Coil went bad and replaced with same. It has now lasted 5 hours. replaced same coil again.

Checked wiring again and again. Pretty simple install. I've used three MSD 6 boxes I've kept over the years. They seem to be fine.

With the bad coils, I did get a spark to the plugs, but would not start the motor. Just before it quit completely it would run fine for a minute or two.

What am I missing? Is this common?

08-04-2022, 03:52 PM	#1
lorenr Junior Member Join Date: Jul 2014 Posts: 48 Likes: 259 Liked 19 Times in 9 Posts	MSD Ignition Products I've been relying on MSD ignition products for over 30 years. Recently I had an issue that surprised me. It was two bad coils. The item is: MSD Ignition 82073 - MSD Blaster SS Coils. In all my years I cannot remember an ignition coil going bad. Decided to use the MSD 6 ignition box with the above coil on my Tournament Ski boat. Ford 351 W with Edelbrock intake and 1850 Holley. Worked fine for 18 years. Coil went bad and replaced with same. It has now lasted 5 hours. replaced same coil again. Checked wiring again and again. Pretty simple install. I've used three MSD 6 boxes I've kept over the years. They seem to be fine. With the bad coils, I did get a spark to the plugs, but would not start the motor. Just before it quit completely it would run fine for a minute or two. What am I missing? Is this common?