Could This Really Cause a Problem?

[colu41]

So as some may know I've been wrestling with the darn CC for a few months now,
Rebuilt motor
New battery
New tires
New V/R
Rebuilt S/G.....
Now it runs great. But the problem is my just recently rebuilt S/G after a little bit of driving, will get so hot the cart bogs, and eventually will not allow the cart to start back up.
If I let it cool overnight. It will start back up. Now my question is, could a small dinky cut like this in the S/G ground going to the frame cause a short that could cause the extreme heat?
I honestly don't have a clue on where to even go from here.....

[Dave in VA]

It won't short unless 12v comes in contact with it, but I believe it will build up heat where the cable is damaged. You've replaced a lot, replace the cable,too.

[colu41]

I plan on replacing all the larger gauge wiring but, I don't know if it will fix my problem or not.

[4vertical]

I would swap out a known good starter and see if the problrm is still there. after changing that $3 cable!!!

[Rodriguezmf1250]

Voltage regulator OK? What's battery voltage after overheating? Also during rebuild did you check windings and bearings in S/G? As stated above I don't think cut on ground would cause overheat to extent of killing the motor. Test voltage regulator make sure your not overcharging, that would cause overheating.

[colu41]

The S/G was rebuilt with new brushes, armature and bearings (supposedly). And a brand new regulator was put in prior.

Forgot to mention in this post, my last ride I took the S/G got so hot it was smoking. So, it's more than likely shot, again.... so me putting a new one in and having that burn out too I'm guessing is not an option until I figure out what's causing it to burn up.

[colu41]

Originally Posted by Rodriguezmf1250

Voltage regulator OK? What's battery voltage after overheating? Also during rebuild did you check windings and bearings in S/G? As stated above I don't think cut on ground would cause overheat to extent of killing the motor. Test voltage regulator make sure your not overcharging, that would cause overheating.

Well if the brand new VR was bad and over charging, it would be over charging the battery, not overloading the S/G. Is that right? I could maybe see if the VR was locked up and not allowing any voltage through then maybe it would be holding it all in the S/G, but again, I don't see the brand new VR being bad.

[Rodriguezmf1250]

It seems to me that the S/G or regulator are the questionable parts. The S/G well run full field, meaning the regulator "regulates" the output to charge your battery. If running full field you are over working your S/G. Like a motor it can overheat in a full field state after to long. Your battery would be getting an overcharge which would then lead to poor battery life later, but the S/G i believe would go before noticeable battery life decrease. The windings inside could be bad, as well as the bearings. I take it someone else rebuilt the S/G. Do this test as a start. With voltmeter on battery and cart jacked up in rear and in neutral, press the gas and check to see voltage reading. The voltage should slowly rise and stop between 14 and 15.7 volts. Anything higher it's a bad regulator, anything lower or no rise and S/G is bad.

[Rodriguezmf1250]

Sorry when I say voltmeter on battery I mean red lead to positive and black lead to negative. Just in case your not familiar with using a voltmeter.

[colu41]

Originally Posted by Rodriguezmf1250

Sorry when I say voltmeter on battery I mean red lead to positive and black lead to negative. Just in case your not familiar with using a voltmeter.

Ive been volt testing this thing everyday since I got it. lol. Just wishing something would change. I haven't checked voltage again since this meltdown happened. lol.

Going to replace some of the wiring next week, and then charge up the battery and test it again.