How much voltage should you have between the distributer and plug?

Paul from Maine

Paul from Maine

Senior Member
How much voltage should you have between the distributer and plug? According to my NuRex spark voltage tester, I have 20,000 volts between the coil and the distributer cap. However, when I put the tester between the cap and the No. 1 plug, I was lucky to get a steady 10,000 volts. I have an ancient original cap that looks in good shape an an old rotor that looks good. Is this voltage drop normal? Should I be adjusting the gap between the rotor and the terminals in the cap? Should I buy anew cap and rotor?
 
I dont know how accurate the tester is , but a good running engine needs approx 5-8000 volts at idle total secondary ignition. Rotor and plug gap typically eat up 2-3000 volts in the gaps etc.
A new cap and rotor is always a good idea assuming the parts are quality parts.....
 
The last time that I touched a spark plug connector,the 'delivery' that I received felt as if I had taken a dose of AT LEAST 500,000V...TWICE. Since then, I have been able to pick up small ferrous objects using the back of my hand. Also, I have been told that the compass in my friend's 60's Caddy swings in my direction whenever I travel through his neighborhood. HMM?!?!?
 
Put you hand on the wire while well grounded.

If you just say ouch then it is weak.

If you say oh sh t then it is ok

If you say g d d m mf son of a b then it is real good.

If you wake up in the hospital then tell me what you are using cause it is real good.
 
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