Re: 6v to 12v conversion ... ignition problem

Posted by Janicholson on January 02, 2006 at 10:40:09 from (66.173.50.55):

In Reply to: 6v to 12v conversion ... ignition problem posted by Randy Glasnapp on January 02, 2006 at 10:14:29:

The problem may be as follows:
The starter, battery, cables and connections may be the problem. When starting, the starter motor draws in the area of 275-350 amps (or more if cold). This draws enough current to lower the battery voltage to about 10 V (or much lower if any of the above are less than ideal). If you want to check this, place a volt meter across the battery terminals (on the posts, not the clamps) have some one crank the engine. If the voltage drops to less than 10 v. I would upgrade components/charge battery, new battery, bigger cables, eic. till it remains high.

An instant test is to run the ignition off of a seperate battery from the one used to start it.
If ti runs, the above is probable cause.

I like to use a resistor style coil with a MoPar, or Chev ballast resistor to the key. And a resistor bypass wire from a Ford type 4 post solenoid, on the "I" terminal. This gives the coil 10-11 volts while starting, and then drops it to about 6-7 volts in operation.

Good luck, JimN

Replies:

• Re: 6v to 12v conversion ... ignition problem kfox 13:47:03 01/02/06 (0)

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