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Jul 21st, 2025 | | | | Joined: Apr 2005 Posts: 38 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2005 Posts: 38 | A basic question here regarding converting from a 6 volt to 12 volt system .... if I currently have points and condenser in my 6 volt distributor and now changing to 12 volt system do i need to replace the points and condenser or can I run my old ones?
Thanks, | | | | | Joined: May 2001 Posts: 7,440 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,440 | I always used the same ones with no problems. | | | | | Joined: Jun 2012 Posts: 85 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 85 | You need an ignition resistor feeding the power to the coil. This makes the points last longer by reducing the arcing.
If you want more spark during starting (a good thing) you wire from the start pole (ign switch, button, etc) to the coil side of the resistor. Then 12V will flow to the coil during the time the starter is running, 6v while key on. | | | | | Joined: Apr 2005 Posts: 38 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2005 Posts: 38 | Thanks Cletis for the information on the condenser...
Mikeybakken - you mentioned the resistor being added. If I have a 12volt coil with the resistor built into it would I still need this added into the circuit?
thanks, | | | | | Joined: Jun 2012 Posts: 85 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 85 | Not heard of the resistor built into the coil, would have to see the skematic of the coil to see whats going on inside.
If you get a plain old standard 12V coil, yes, again it will make your points last longer. When car and tractor companies switched to 12v all ignitions had ignition resistors. GM started solenoids had a pole that provided 12V that was wired to the coil side of the resistor. Ford ran a wife from the starter solenoid pole of the ignition switch for the same purpose.
You don't have to, just keeps the points contacts cleaner longer.
Mike | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | there are newer style coils that are 'internally resisted', usually it will be printed on the coil that they do not require an external ignition resistor - they work fine with any 12V conversion or on the TF and later trucks that are factory 12V - either type coil should be available at the parts stores
Bill | | |
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