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Re: Voltage at Coil Positive by Sam Watson
Post New Message 5.5 volts is pretty low, cosidering that the primary resistance is.5 to.6 ohm for a thermal resister, or 1.1 to 1.3 ohms for a non-thermal resister. That means you should see about 1.5 to 2 volts less than battery voltage at the coil's + terminal when key is in "run" position. Believe it or not, these ignitions will run, using just the 4.75 to 5.75 ohm auxillary side of the dual ballast resister, however, since the coil is a step-up, pulse transfomer, less voltage in means less voltage out. The fact that you were getting a HV discharge back through the wiring to the ign. switch indicates that this is what took place. A ChryCo vehicle with a dual resister unit and a bad primary side of the resister will fire when cranking because the resister is being by-passed, then runs on the aux. side when the key is in the "run" position. On the earlier point ignition vehicles it was pretty obvious, they would fire in crank, but die when the key was released.
All Messages in ThreadAuthorDate
Post New MessageVoltage at Coil Positive Ralph 7-29-02  
  Reply to MessageRe: Voltage at Coil Positive Joe 7-31-02  
  Reply to MessageRe: Voltage at Coil Positive Joe 7-29-02  
    Reply to MessageRe: Voltage at Coil Positive Ralph 7-30-02  
      Reply to MessageRe: Voltage at Coil Positive Sam Watson 7-30-02  
      Reply to MessageRe: Voltage at Coil Positive Joe 7-30-02  
        Reply to MessageHELP ! Re: Voltage at Coil Positive Ralph 7-31-02  
          Reply to MessageRe: Voltage at Coil Positive Ralph 7-31-02  
            Reply to MessageRe: Voltage at Coil Positive Joe 7-31-02  
              Reply to MessageRe: Voltage at Coil Positive Joe 7-31-02  
                Reply to MessageRe: Voltage at Coil Positive Sam Watson 8-1-02  
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