| coil pack on a HEI [message #263253] |
Fri, 03 October 2014 08:41  |
budworks521
Messages: 137
Registered: October 2013
Location: Grand Rapids MI 1974 Pain...
Karma: 4
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I was wondering since the HEI ignition coil in the cap has a primary and secondary aspect to voltage and if you keep on cranking on the engine and starter does it add voltage to the coil until I get the engine to start? Or is the voltage constant regardless of the amount of turning over the engine? I am still experiencing difficulties with popping noises in my carb and have since eliminated bad gas, have installed new plugs, tested the module, coil, and spark plug wires. I should note that I have the crossover plates installed and have not yet installed an electric choke. I never had this problem until well after my upper half had been redone. Thanks, My cap and rotor seem OK. Though I do get jolted every once in awhile when touching the plug wires at the terminals on the cap. Thanks gentlemen for any input.
1974 Painted Desert
455 upper half rebuild
constant project inexperienced mechanic
Grand Rapids Mi
Always trying to learn
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| Re: coil pack on a HEI [message #263329 is a reply to message #263253] |
Sat, 04 October 2014 08:42  |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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No, it doesn't add. That you get bit by the wires indicates the coil is producing high voltage.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: coil pack on a HEI [message #263331 is a reply to message #263253] |
Sat, 04 October 2014 09:07 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Soulds like a classic choke issue. It should fully close with one pedsl apply cold then open about 3/16 via the vac pulloff a couple seconds after starting. With blocked passages you would need alternate choke signal or electric. . The fact you are getting zapped is not right. You have bad wires or they are not snaped tight on the plugs the wires should insulate past the max voltage of the coil. Are the boots split or scratched inside? A scratch inside the rubber boot at cap termina or at wire exit gives an air path for spark to jump
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: coil pack on a HEI [message #263351 is a reply to message #263253] |
Sat, 04 October 2014 15:09 |
budworks521
Messages: 137
Registered: October 2013
Location: Grand Rapids MI 1974 Pain...
Karma: 4
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Senior Member |
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I found my lead wire to the coil was slightly loose. I recrimped a fitting and still a hard start. I figure I have two problems. A choke that needs help and an ignition issue. My popping noise went away then came back after the crimp job. I pulled the cap and rotor off and inspected for wear and there is a slight glaze on all the terminals. Anyway, I appreciate the help and will purchase some new electrical stuff. My carb is not flooding out as much and seems stronger as a result of fixing the terminal hookup. Thanks
1974 Painted Desert
455 upper half rebuild
constant project inexperienced mechanic
Grand Rapids Mi
Always trying to learn
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