Quoting Removed, click Modern View to see Ground cable, and use a small test light
Here's a reply to a message I made on the Allis Chalmers forum on this thread:
>>There are multiple ways a battery can be discharged when the tractor is off.
>>Key left on will discharge the battery.
If tractor is a gasser, and has a distributor ignition system, it is providing voltage to the coil when the key is on. A voltage measurement at the coil will tell you if the key is on or off. If voltage is left on to the coil and the points happen to be closed, you will eventually burn the points and probably melt the coil.
>>A stuck cutout in a voltage regulator will drain the battery when all is off, as will a bad regulator in an alternator. To see if you have a drain when off, disconnect the ground cable from the battery, and insert a small test light between the disconnected cable and the battery post the cable came off of. If there is a current draw the lamp will light.
>>Incorrectly wired instruments can cause a drain. Such as any powered gauge that continues receiving power when the key is off.
>>Imho, the most common drain is a bad voltage regulator. Some folks just disconnect the battery ground when the tractor is off to avoid draining a battery, until the problem can be isolated and fixed.
If you try the test light, and it shows a draw, disconnect one electric Item at a time until the test light goes out. When it does go out, you found the item causing the drain.
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