Farmall M overcharging Update

Posted by Shawn in PA on March 22, 2009 at 00:52:53 from (72.23.162.33):

In Reply to: Re: Farmall M overcharging posted by pete 23 on March 21, 2009 at 19:24:01:

First off, thank you so much for all the replies. I never expected so many people to respond. Before I get into detail, please understand, I have a 4yr old daughter and a 8 1/2 month pregnant wife, so my time in the shop is very limited, and I was"nt able to dig real deep into my problems.
Ok, as of today I installed a new 12 INTERNALLY ballated coil. Points are new, and gapped correctly at .020, along with new condenser. I did eliminate the external ballast resistor when I added the new coil.
Alternator and battery check out as stated in my last post, although I"m beginning to question my battery. (Ill have it load tested again)
Per Brownie 450 I ran a jumper wire from the number 2 "sense post" from the alternator directly to the positive battery post. I grounded the alternator case to the negative battery cable. I also replaced the plug that plugs into the number 1 and 2 alternator posts with spade terminals to ensure that corrosion was"nt causing the problem. I do have a diode in the #1 exciter wire, facing the right direction. The engine quits when I push in the ignition switch. At idle the ammeter is reading 0 amps (no lights), and once the throttle is pulled (even just a little bit, less than 1/4 throttle) the ammeter gets pegged. Now the difference from my last post IS, NO battery boil over. With the jumper wires hooked per Brownie 450"s instructions the ammeter is still pegged, but the battery never boiled, with the tractor running at various rpm"s from idle to WOT for about 15-20 minutes. Could the ammeter be shot? Ive never seen one go bad in my 29 years, but my experience and knowledge is far limited as compared to most whom reply on this site. The tractor runs great, it"s just pegging the meter now, and it does have a draw.
With the points closed, ignition on, engine off, I"m seeing a 9-11 amp draw on the ammeter. Points open 3-4 amp draw on the meter. New coil, points, and condensor... and 1 year old wires. Unfortunately between my 4yr old daughter and my justifiably frustrated pregnant wife, I was unable to use a multi-tester or test light on anything. Hopefully tommorrow I"ll be able to. The tractor runs great, and all lights work normal, I appreciate any and all opinions and ideas. Thank you in advance.
Also, I realize I am new to the forum, but I wanted to share that as of today I acquired a farmall straight A. The tractor means alot to me not because it"s an A, but because it was my grandfathers. It was sold a while ago, and fortunately I was able to get it back. A friend through a friend through a friend type of thing. It runs, but needs a little work. My wife thinks it"s "cute" cause it"s pink. Not painted pink, pink from the sun fading the IH red. Anyway thanks again for suggestions and replies.

Replies:

• Re: Farmall M overcharging Update Janicholson 14:06:15 03/22/09 (0)

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