WD45 distributor trouble
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=49265
Printed Date: 24 Aug 2025 at 1:01pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD45 distributor trouble
Posted By: dallypost
Subject: WD45 distributor trouble
Date Posted: 19 Apr 2012 at 9:45pm
I have a WD45 that has completely discharges the battery after just a few hours of use. This tractor was converted to a 12 volt system and now has an ignition switch. In probing the system, I noticed that the ignition and accessory terminals all short directly to ground when the key is in the run position. I disconnected one component at a time until the short disappeared. What I found is that the coil terminal on the distributor is shorted directly to ground. So now I am wondering, can this distributor be rebuilt or is there a source where I can buy one.
Thanks in advance.
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Replies:
Posted By: MACK
Date Posted: 19 Apr 2012 at 9:57pm
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Why does the distributor need to be rebuilt? MACK
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Posted By: DSeries4
Date Posted: 19 Apr 2012 at 10:03pm
The problem has nothing to do with your distributor.
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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Posted By: Ian
Date Posted: 19 Apr 2012 at 10:09pm
What they are saying is the distributor is internally grounded, that's normal. If it is discharging the battery while running it is not charging properly. did you test the voltage at the battery with it off and with it running?
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1980 AC 616
1958 AC D14
1960 AC D14
1987 Cub 1204
1982 Cub 682
1974 Cub 154 Lo-Boy (SOLD)
Hauler: 1998 Dodge Ram2500 Cummins
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Posted By: Steve in NJ
Date Posted: 19 Apr 2012 at 10:15pm
Coil or the Ignition switch could be the culprit!
Steve@B&B
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Posted By: Brian Jasper co. Ia
Date Posted: 19 Apr 2012 at 10:55pm
The coil terminal on the dist would always be shorted to ground when the points are closed. Sounds like your alt isn't working. Put a volt meter across the battery with the engine running at half throttle or more and see what it reads. Should be about 14 volts. The distributor is not your problem. Open the points and your dead short to ground will go away.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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