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Old 02-24-2013, 09:42 PM
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327 help

i have a 67 chevy 327 in a 85 chevy c10 and i need to wire up a ignition coil resistor... this truck came with hei so i have to wire the resistor all by hand and i need to know how to wire it up to the truck which is for hei. how do i wire up the resistor? ive never had to do this so all and any help is appreciated

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Old 02-24-2013, 10:01 PM
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May I ask why your going back with a points ignition system? Why not stick with the HEI?

Mike
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Old 02-24-2013, 10:23 PM
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Use the HEI and forget the resistor. That is 45 year old technology. Why would you want to limit your spark and use points in a newer vehicle? HEI runs better and is much more reliable, stick with it.
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Old 02-24-2013, 10:40 PM
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Originally Posted by cadillacdave1 View Post
Use the HEI and forget the resistor. That is 45 year old technology. Why would you want to limit your spark and use points in a newer vehicle? HEI runs better and is much more reliable, stick with it.
Well I put a hei distributor in it and I wasn't getting fire and everything was new on it and I know I was getting power to it but no fire... So I went back to the old style which I knew I was getting fire to begin with
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Old 02-24-2013, 10:51 PM
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Did you make sire the HEI was getting a full 12V?
Very important for it to get the full 12V....
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Old 02-24-2013, 11:00 PM
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Did you make sire the HEI was getting a full 12V?
Very important for it to get the full 12V....
Yup I also had it on a battery charger/volt tester and it said 14.4 volts and all you need is 12 so I have no idea what's wrong and that's why I went to the old style
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Old 02-24-2013, 11:00 PM
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fix the hei.
resistor? between the power and coil but not on the start side
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Old 02-25-2013, 03:20 AM
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327 help

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Originally Posted by 85chevy10 View Post
Yup I also had it on a battery charger/volt tester and it said 14.4 volts and all you need is 12 so I have no idea what's wrong and that's why I went to the old style
Why didn't you take the module from the distributor to Auto Zone to have it checked? The only other reason for a HEI not to fire would be if the wire broke on Pick-up coil assembly. Here is a good article that may help diagnose the problem with your distributor. http://www.crankshaftcoalition.com/w...EI_distributor
If the distributor is a Pro Comp (or other EBay junk) you may as well buy a new one, they have lots of problems with them.
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Old 02-25-2013, 04:01 AM
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327 help

Here is a ballast resistor from Summit Racing. Summit Racing® Ballast Resistors SUM-G5218 - SummitRacing.com If you have the original wiring harness in your truck from 1967 you will have to run a new ignition wire to the left terminal of the ballast resisstor. The wire on the right side terminal connects to the + side of the coil.
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Old 02-25-2013, 10:21 PM
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Originally Posted by cdminter59 View Post
Here is a ballast resistor from Summit Racing. Summit Racing® Ballast Resistors SUM-G5218 - SummitRacing.com If you have the original wiring harness in your truck from 1967 you will have to run a new ignition wire to the left terminal of the ballast resisstor. The wire on the right side terminal connects to the + side of the coil.
Thank you and I don't and it would be helpful you you could tell me how to wire it
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Old 02-26-2013, 04:50 AM
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To wire the old stuff back in......

You need to run a wire from the ing switch that's providing 12v when the key in in the run position, to the ballast resistor. Run a wire from the other side of the ballast resistor to the + side of the coil. The ballast resistor provides 9ish volts to the coil.

Run or locate the wire that runs to the "S" post on the starter soleniod, this wire should provide 12v when the key is in the start position only.

Run a wire from the "I" terminal on the starter to the + side of the coil, this wire provides a full 12v to the coil to aid in starting.

Run a wire from the - side of the coil to ground.

I think you're making a mistake abandoning the HEI, it's either the module, the pick up or the coil.

Make sure the little carbon button/pin the connects the coil to the cap didn't fall out.
As suggested above pull the module and have it tested and make sure the wires are still connected to the pickup coil.
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Old 02-26-2013, 01:00 PM
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Quote:
Originally Posted by EOD Guy View Post
Run a wire from the - side of the coil to ground.


Not sure but it sounds like you are saying to ground the wire from the neg (-) side of the coil? If so that won't work at all, that wire is supposed to go to the distributor and the points.


There should be three wires going to the coil, on the positive side there will be a wire from the output side of the resistor and another one from the "I" on the solenoid then on the negative terminal the wire runs to the distributor but no wire will be directly grounded anywhere.


Perhaps I misunderstood what you were saying?
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Old 02-26-2013, 04:40 PM
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No you are correct, no direct ground, - coil goes to the points etc........... got in a hurry and distracted...... I missed the boat on that one.
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