Proper voltage to coil?
Thread Starter
Burning Brakes
Joined: Apr 2001
Posts: 752
Likes: 1
From: Springfield Oregon
Proper voltage to coil?
My car has an Accel Supercoil and a Mallory Unilite distributor. Sometimes it starts a little hard, compared to my '74 Monte Carlo with stock HEI and coil, that fires the second you touch the key every time. I measured the voltage going into the coil on the 'Vette and read 4.8volts. Shouldn't this be more like 10-12? I have no idea. Plugs are always nice and tan. Appreciate any help. Also, Do I need to be running a ballast resistor? Thanks again.
Safety Car
Joined: Feb 2002
Posts: 4,286
Likes: 4
From: Guam
Re: Proper voltage to coil? (ORVette)
You need atleast 10 volts to fire it properly. You'd better check your power source to see where the problems are. You must have a dirty conection somewhere. :seeya
Thread Starter
Burning Brakes
Joined: Apr 2001
Posts: 752
Likes: 1
From: Springfield Oregon
Re: Proper voltage to coil? (Sharky Guam)
When I got that 4.8 volt reading it was key on/engine off. According to Mallory, I need to check the running voltage, but I haven't done it yet because I got kicked out of the garage this weekend while my wife prepares for a yard sale, and I don't want to open my hood outside now because it's raining(what's new?). I'll reply when I gat a running reading.
Melting Slicks
Joined: Dec 2000
Posts: 3,407
Likes: 2
From: Carmichael CA
Re: Proper voltage to coil? (ORVette)
When I got that 4.8 volt reading it was key on/engine off. According to Mallory, I need to check the running voltage, but I haven't done it yet because I got kicked out of the garage this weekend while my wife prepares for a yard sale, and I don't want to open my hood outside now because it's raining(what's new?). I'll reply when I gat a running reading.
Thread Starter
Burning Brakes
Joined: Apr 2001
Posts: 752
Likes: 1
From: Springfield Oregon
Re: Proper voltage to coil? (Rockn-Roll)
Rockn-Roll,
Yeah, I think I have a factory type inline resistor in the wire to the coil from the starter. It looks almost like a splice, and it gets hot when the motor is running. Definately let me know when you're coming through this way.
Yeah, I think I have a factory type inline resistor in the wire to the coil from the starter. It looks almost like a splice, and it gets hot when the motor is running. Definately let me know when you're coming through this way.
