Re: 300 Farmall Points

Posted by KEB on January 03, 2006 at 20:41:15 from (209.108.192.162):

In Reply to: Re: 300 Farmall Points posted by IaGary on January 03, 2006 at 20:08:12:

Its the current through the points that causes them to burn, not the battery voltage. Using an 8 volt battery with a 6 volt coil results in more current through the coil (and the points) than using a 6 volt battery (higher voltage + constant resistance = higher current). More current = more heat = less point life.

12 volt coils either use external ballast resistors to limit current, or are designed with internal resistance to do the same thing. If you really want to burn up points quick, connect a 12 volt battery to a 6 volt coil without a ballast resistor!

PS...a bad or wrong value condensor can also burn points. In this case, there will be metal from one contact deposited on the other - which contact depends on whether the condensor has too much or too little capacitance.

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