I just hooked up a delco 10 SI alt. on my tractor. I used the original switch and when I turn it off it will keep runing. I know I need a diode,and I will get one when I go to town. The ? I have is I can unhook the wire and it will stop but if I hook it up again and don't start the tractor for a week or so will it kill the battery. Thanks
- Thread starter S2710
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onefarmer
Well-known Member
- Location
- 6735 S Lowell Rd, St Johns, Mi 48879
Put a Delco on a Farmall M a long time ago. Just added a second switch for the alt. Have since used a used diode trio and just used one leg of it.
Bob M
Well-known Member
Inserting the diode in the line between the ign switch and alternator terminal #1 will cure the running-on problem.
But adding the diode won't solve battery drain issue. Assuming you've wired the alternator correctly, problem has gotta be either a failed output diode or a bad internal voltage regulator.
Recommend taking the alternator to NAPA or equivalent and put it on their test stand (it's free!) to identify the problem.
But adding the diode won't solve battery drain issue. Assuming you've wired the alternator correctly, problem has gotta be either a failed output diode or a bad internal voltage regulator.
Recommend taking the alternator to NAPA or equivalent and put it on their test stand (it's free!) to identify the problem.
Janicholson
Well-known Member
No it will not drain the battery through that connection if it is rehooked. If the Alternator is good, (assumption) the stopping of the alternator when the engine stops causes the regulator #1 terminal to go to a ground state. This is evidenced by the fact that in a car, when the ignition is turned on, the "Idiot light" comes on. Jim.
Janicholson
Well-known Member
I think he is not finding the battery dead, I think he is asking if it will discharge through the #1 terminal. It should not cause a drain unless it has a bad regulator, (or a one wire designed alternator)
Jim
Jim
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