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12 Volt coversion alternator.

B

Budman

Member
I installed 12 volt conversion kits from Yesterday's Tractors on two of my 51 Fords. One works and is wired per diagram using only the one wire off the battery terminal of the alternator. The other although wired the same does not charge on either tractor while the other works on either tractor. If I jumper #1 and#2 terminals together and then touch that combination to the alternator battery terminal with the engine running the alternator works to some extent and will continue to charge until the engine is shut down. Then you must start all over again. I suspect some component is faulty. Any idea which component?
 
(quoted from post at 22:21:44 12/07/08) I installed 12 volt conversion kits from Yesterday's Tractors on two of my 51 Fords. One works and is wired per diagram using only the one wire off the battery terminal of the alternator. The other although wired the same does not charge on either tractor while the other works on either tractor. If I jumper #1 and#2 terminals together and then touch that combination to the alternator battery terminal with the engine running the alternator works to some extent and will continue to charge until the engine is shut down. Then you must start all over again. I suspect some component is faulty. Any idea which component?
Click to expand...

JMOR!?!?!?!!?!?!?!?!!?

I got money that says there is a reason for that.

I have no clue as to what it is, but I don't need to know, I bet there are at least 2 here who know.

If not more.

John!!!!!!!

Is the grass on the plain frozen?!?!!?
 
Post #1 and #2 can be tied together and a exciter wire from the switch feed both. look at your other one and see if they are tied together with a little bar.or replace the internal voltage regulator in it.
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That is one of the many common problems with the 1 wire alternators. That is why I never use them any more and go with the 3 wire set up. You can wire that one as a 3 wire and be done with it. Just take a wire from the #2 to the big post on the alternator and a wire from the #1 to the ignition switch with a diode or light bulb in that wire and it should work just fine. I can wire up a 12 volt conversion for less then $100 including the battery with auto part store parts so I never buy the kits
 
(quoted from post at 21:21:44 12/07/08) I installed 12 volt conversion kits from Yesterday's Tractors on two of my 51 Fords. One works and is wired per diagram using only the one wire off the battery terminal of the alternator. The other although wired the same does not charge on either tractor while the other works on either tractor. If I jumper #1 and#2 terminals together and then touch that combination to the alternator battery terminal with the engine running the alternator works to some extent and will continue to charge until the engine is shut down. Then you must start all over again. I suspect some component is faulty. Any idea which component?
Click to expand...
I find no disagreement with Den & Old. I will explain what is likely happening & that is that the excite function in your 1-wire reg isn't working & when you connect the terminal #1 (excite to battery momentarily, that kicks it off & from then until the engine stops, the internal diode trio feeds the field. Once stopped, you have to repeat the procedure. Old told you the 3-wire solution. OK?
 
Wire it like a 3-wire and go.. it will likely be better thant he 1-wire job after that.

soundguy
 
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