Re: 6v won't turn over, 12v will

Posted by gusc on November 02, 2004 at 21:32:06 from (63.97.117.46):

In Reply to: 6v won't turn over, 12v will posted by kevin brooks on November 02, 2004 at 10:28:09:

Kevin,

Clean all your battery cable connections. Run 12v directly to the starter bypassing all other wiring. If it cranks you have a wiring problem.

On a 12v system you must use a resistor in series with the switch wire and coil otherwise you will fry the coil. All coils are 6v that is the reason you need a resistor, either internal or external, for 12v systems. Your auto or tractor parts store can tell you which is the correct resistor for your tractor.

If your gen or reg is bad, make it simple and go to an older model internal regulator Delco (GM) three wire alternator. The problem with one wire alts is the high price and the high rpms necessary to make them charge.

If you change to a 3 wire alt I can send you instructions on hooking it up.

If you decide to keep the gen or get another gen you must polarize both the gen and reg before starting the tractor. I can tell you how to do that also, it is very simple. Running the tractor with the gen/reg at the wrong polarity can destroy both.

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