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Overcharging (Read 7063 times)

garage gnome Flatfender Master 2013 Sponsor Member Offline Rustologist Posts: 1931 Location: Chester Joined: 02/16/12 Gender:	Overcharging 07/09/13 at 01:20:37	Print Post
	My 49 started to charge the battery at 50 amps today on the ride to work. I had a spare voltage regulator that I put in it and it is still doing the same thing. What could be causing this?

	Nate in Western MA 1953 3A #3268, The Jalopy, '47 2A Wheelin' rig, '49 3A, #37071, unmolested, bone stock named Ted
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1955CJ-5 Flatfender Master 2013 Sponsor Member 2016 Sponsor Member 2015 Sponsor Member Offline It wasn't always green.... Posts: 2338 Location: Boise, idaho Joined: 12/18/12 Gender:	Re: Overcharging Reply #1 - 07/09/13 at 01:23:43	Print Post
	Internal short in the battery? Just a guess....

	1955 CJ-5, A friend for 55 years....1951 CJ-3A, a new addition. 1929 Model A Ford Closed Cab Pickup...
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gmcjr Flatfender Enthusiast Offline Even a blind hog finds a acorn every now and then. Posts: 168 Location: N. Texas Joined: 11/13/12 Gender:	Re: Overcharging Reply #2 - 07/09/13 at 01:48:13	Print Post
	My guess, the generator is "full fielding". First thought would be stuck overcurrent relay contacts in the regulator, but sense it's been changed, I would look for a short to ground in the field circuit wiring between the generator and regulator (very possible) or a internal short between ground and the field coils inside the generator itself (not as likely, but still possible). After charging 50 amps on a 35 amp genny, I would pull the brush cover band and look for evidence of thrown soldier from the commentator, just as a precaution. As usual, this is a W.A.G. Hope it helps!!!
	« Last Edit: 07/09/13 at 01:53:49 by gmcjr »
	Gary in N. Texas 51 CJ-3A (old Trusty) 52 Ford 8n (ugly duckling) 46Farmall B (old Rusty) 18 Wrangler Jk
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garage gnome Flatfender Master 2013 Sponsor Member Offline Rustologist Posts: 1931 Location: Chester Joined: 02/16/12 Gender:	Re: Overcharging Reply #3 - 07/09/13 at 22:27:14	Print Post
	I was thinking maybe the Same thing Gary. The harness between the gen. and voltage reg is really crummy. It is the original and the insulation is all cracked and decayed. Fortunately, I have a spare new one I can throw on and age to match the rest of the wiring if it is the problem.

	Nate in Western MA 1953 3A #3268, The Jalopy, '47 2A Wheelin' rig, '49 3A, #37071, unmolested, bone stock named Ted
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gmcjr Flatfender Enthusiast Offline Even a blind hog finds a acorn every now and then. Posts: 168 Location: N. Texas Joined: 11/13/12 Gender:	Re: Overcharging Reply #4 - 07/10/13 at 00:57:18	Print Post
	Hopefully it's a easy fix, I'm sure the wiring is way past its prime.

	Gary in N. Texas 51 CJ-3A (old Trusty) 52 Ford 8n (ugly duckling) 46Farmall B (old Rusty) 18 Wrangler Jk
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garage gnome Flatfender Master 2013 Sponsor Member Offline Rustologist Posts: 1931 Location: Chester Joined: 02/16/12 Gender:	Re: Overcharging Reply #5 - 07/10/13 at 01:40:49	Print Post
	Well, the old harness was still good. I put the new one in anyways. It was still overcharging. I put the generator on it from my '53 (since I switched it to an alternator) and the problem went away mostly. It is still charging at 20 amps or so, but with the lights on and high beams, it brings it down to 5 amps. At an idle (no lights), it is zero, lights on, it showing a discharge of 5-10 amps. I still have the somewhat burned up spare voltage regulator in, so that might be the rest of the issue. I'm surprised the original generator from my '53 still works! It hasn't been used in years.

	Nate in Western MA 1953 3A #3268, The Jalopy, '47 2A Wheelin' rig, '49 3A, #37071, unmolested, bone stock named Ted
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Quebec Jeep YaBB Administrator Owner Member 2012 2016 Sponsor Member 2015 Sponsor Member Offline CJ-3A 1950 Posts: 1192 Location: Quebec, Canada Joined: 06/16/12 Gender:	Re: Overcharging Reply #6 - 07/10/13 at 02:27:22	Print Post
	They were made in US!

	I'm jeepcoholic!
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garage gnome Flatfender Master 2013 Sponsor Member Offline Rustologist Posts: 1931 Location: Chester Joined: 02/16/12 Gender:	Re: Overcharging Reply #7 - 07/10/13 at 09:49:35	Print Post
	I think I'm going to fix it with this... http://www.ebay.com/itm/6-Volt-60-Amp-Negative-ground-1-wire-Alternator-/2505659...

	Nate in Western MA 1953 3A #3268, The Jalopy, '47 2A Wheelin' rig, '49 3A, #37071, unmolested, bone stock named Ted
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stony 3A Guru Offline Posts: 298 Location: Victor, NY Joined: 07/12/13 Gender:	Re: Overcharging Reply #8 - 07/14/13 at 05:16:51	Print Post
	I know I am new here and I could get in trouble for this but IMHO that is about the ugliest thing I have ever seen ! . Sounds like your problem might be more than just the generator. If it is your generator you could have it rebuilt for that price.

	Terry 1949 CJ3A 11159 body 11225 engine 11140 On preservation vs. restoration: Roscoe Lee Brown "the Cowboys" when he met the whores on the trail: "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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garage gnome Flatfender Master 2013 Sponsor Member Offline Rustologist Posts: 1931 Location: Chester Joined: 02/16/12 Gender:	Re: Overcharging Reply #9 - 07/14/13 at 15:04:14	Print Post
	I'm running a delco 10si 12v alternator on my '53 and love it. I is nice to have good lights at an idle. When I swapped generators, the problem went away mostly. It is still charging high, but I think that is because of the bad regulator I have now.

	Nate in Western MA 1953 3A #3268, The Jalopy, '47 2A Wheelin' rig, '49 3A, #37071, unmolested, bone stock named Ted
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stony 3A Guru Offline Posts: 298 Location: Victor, NY Joined: 07/12/13 Gender:	Re: Overcharging Reply #10 - 07/14/13 at 16:17:13	Print Post
	Yeah it is nice to have good lights at 2000 rpm too, good thing you don't have to see too far ahead in a CJ3. But I am a 6V guy all the way, don't want to spin that starter too fast and adds some drama to your life, will she or won't she?

	Terry 1949 CJ3A 11159 body 11225 engine 11140 On preservation vs. restoration: Roscoe Lee Brown "the Cowboys" when he met the whores on the trail: "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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Rus Curtis Flatfender Enthusiast Offline Retired Posts: 151 Location: Alabama Joined: 05/28/13 Gender:	Re: Overcharging Reply #11 - 07/14/13 at 17:44:11	Print Post
	Just to add my .02 cents worth (and that's all it really is worth), you wouldn't be "fixing" it by using the alternator. You would be altering it by using a different component. Those alternators wear out also and will also have to be fixed. IMHO, I'd check in with an electrical shop to see if they can repair your equipment for less. That way you'll know if the alternator swap out is worth the price.

	'54 CJ-3B "Green Gruntt" Bantam T3-C
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garage gnome Flatfender Master 2013 Sponsor Member Offline Rustologist Posts: 1931 Location: Chester Joined: 02/16/12 Gender:	Re: Overcharging Reply #12 - 07/14/13 at 23:06:19	Print Post
	To kill this, I took the voltage regulator from our 8N and put it in while hooked to the old generator from my '53. It charged perfectly. I'm still going with the alternator though just because I am going to be driving this a lot.

	Nate in Western MA 1953 3A #3268, The Jalopy, '47 2A Wheelin' rig, '49 3A, #37071, unmolested, bone stock named Ted
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garage gnome Flatfender Master 2013 Sponsor Member Offline Rustologist Posts: 1931 Location: Chester Joined: 02/16/12 Gender:	Re: Overcharging Reply #13 - 07/19/13 at 01:48:26	Print Post
	I put the alternator in. It works great!

	Nate in Western MA 1953 3A #3268, The Jalopy, '47 2A Wheelin' rig, '49 3A, #37071, unmolested, bone stock named Ted
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Birddog7 3A Lover 2015 Sponsor Member Offline Still Plays With Willys Posts: 90 Location: Illinois Joined: 05/01/13 Gender:	Re: Overcharging Reply #14 - 07/19/13 at 04:07:57	Print Post
	Looks great, Nice and clean using existing bracketry.

	Birddog7 1945 CJ2A 1946 CJ2A 1948 CJ2A 1948 CJ3A 1956 CJ3B
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