Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Massey Harris & Massey Ferguson Tractors Discussion Forum
:

Battery goes dead

Welcome Guest, Log in or Register
Author 
jjw

09-01-2004 09:54:44




Report to Moderator

Bought a 51 MH44. Been setting for 2-3 years. Dash switches were all rusted, got them to pull out finally. Ignition switch will allow tractor to start and stop. Light switch, not sure if it works cause the lights don't go on. Put a new battery in but it goes dead overnight. Could one or both of these switches be allowing a short of some kind to allow the battery to drain??? Or should I look elsewhere? jjw

[Log in to Reply]   [No Email]
marlowe

09-01-2004 16:38:55




Report to Moderator
 Re: Battery goes dead in reply to jjw, 09-01-2004 09:54:44  
are you sure you got the battery in right?? from new on they are + ground 6 volt but you said you have a delco one wire alt. is it 6 or 12 volt and is the alt. made for + or - ground?? they can be made for eather way



[Log in to Reply]  [No Email]
txblu

09-01-2004 11:38:46




Report to Moderator
 Re: Battery goes dead in reply to jjw, 09-01-2004 09:54:44  
Anything's possible. Don't think ignition switch being on and only running ignition current would run battey down; if points happen to be closed. That's only 2-3 amps for 10 hrs is only 30 amphrs and you would/should notice a very hot ignition coil.

A sticking regulator could do it. The contacts are supposed to open when the priming current from the ignition switch is turned off, disconnecting the generator from the battery (so as not to run the battery down); so that would do it.

Other wise you have a short somewhere in your wiring to chassis. But that would/should promptly blow the fuse, if any, or burn the wiring insulation and you'd smell that.

The battery was the first guess but you eliminated that. So I'll go with the regl.

Mark

[Log in to Reply]  [No Email]
RussR

09-02-2004 05:54:21




Report to Moderator
 Re: Battery goes dead in reply to txblu, 09-01-2004 11:38:46  
MH44; WHENEVER YOUR NOT TROUBLESHOOTING THE SHORT PROBLEM DISCONNECT THE BATTERY CIRCUIT AT THE BATTERY. CONNECT A V-O-M SETUP TO MEASURE 10 AMPS BETWEEN THE POSITIVE BATTERY POST AND THE + BATTERY CABLE (DON'T ATTEMPT TO USE THE STARTER AT THIS POINT). SWITCH ON AND OFF EVERY DO HICKIE YOU CAN THINK OF AND WATCH THE AMMETER DRAW.
IF THINGS ARE RIGHT YOU SHOULD SEE THE DRAW DIVE TO ZERO WHEN ALL THE DO HICKIES ARE OFF. KEEP ON SPARKING(NOT).

[Log in to Reply]  [No Email]
jjw

09-01-2004 12:18:54




Report to Moderator
 Re: Battery goes dead in reply to txblu, 09-01-2004 11:38:46  
Thankx Mark. But the tractor has a one wire alternator, so wouldn't the regulator be internal? jjw



[Log in to Reply]  [No Email]
txblu

09-02-2004 06:51:09




Report to Moderator
 Re: Battery goes dead in reply to jjw, 09-01-2004 12:18:54  
Well you just hit upon an excellent source of your problem. The alternator is a 3 legged alternating current generator. The ac output is full wave rectified with 2 diodes per leg (6 total) into dc and fed to your battery via the large wire on the alt. If someone reversed the leads to the electrical system (battery during jumping usually) you will fry the 3 diodes which allow the alt to feed the battery, but don't let the battery bleed back thru the alt when the engine is off. They short out.

Take your alt off and go to AutoZone and have it tested. Bet you'll find the reg fried. They sell parts and rebuild for a very reasonable price.

Good luck.

Mark

[Log in to Reply]  [No Email]
John McPherson

09-01-2004 18:30:30




Report to Moderator
 Re: Battery goes dead in reply to jjw, 09-01-2004 12:18:54  
Reg should be internal, but check to see if there is 12 volts at the one wire leading up to the ignition switch.

If there is, the alternator was not wired correctly. Just relocate that wire to a point where the voltage is switched off when the engine is off, or install a 3 terminal oil pressure switch on a tee with your oil pressure take off point. The type used on a Vega is a good one to use because the two independant switched terminals are switched off when there is no oil pressure.

[Log in to Reply]  [No Email]
txblu

09-03-2004 10:50:23




Report to Moderator
 Re: Battery goes dead in reply to John McPherson, 09-01-2004 18:30:30  
That misconnected wire could be the problem also.

Mark



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy