Some MSD help please.
Thread Starter
Race Director
Joined: Jan 2002
Posts: 11,614
Likes: 347
From: No Where USA
Some MSD help please.
I am going to start my 502 tomorrow for the first time and was going thru some things. With the key on the LED on the MSD 6AL blinks and then goes off. What wires hooked to the distributor should be hot when the key is on. I am running a 4 pin HEI. With the key on none of the wires are hot. Should they be or are they hot when the engine is cranking/running. i have 13.8 volts.
Team Owner
Joined: Jun 2001
Posts: 23,363
Likes: 1,059
From: Virginia USA
That's what I was thinking as all those wires do is trigger the box to trigger the coil. As an electronics engineer I can think of a bunch of ways to do that with and without voltage and knowing how my MSD distributor triggers I figured they probably wouldn't have voltage. My old 6AL doesn't have an LED so I've never seen what you're talking about.
Hope your engine start goes well. Always fun when it does.
Hope your engine start goes well. Always fun when it does.
Thread Starter
Race Director
Joined: Jan 2002
Posts: 11,614
Likes: 347
From: No Where USA
That's what I was thinking as all those wires do is trigger the box to trigger the coil. As an electronics engineer I can think of a bunch of ways to do that with and without voltage and knowing how my MSD distributor triggers I figured they probably wouldn't have voltage. My old 6AL doesn't have an LED so I've never seen what you're talking about.
Hope your engine start goes well. Always fun when it does.
Hope your engine start goes well. Always fun when it does.
Thanks.
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
I had a problem with the power wire on the battery positive. To many terminals connected there and some galvanic corrosion occurred with the different metals and the MSD box lost power/couldn't start the car. Once I figured it out I just cleaned all the terminals and tightened the fastener fixed the problem.
