8 Volt Battery on my WD45 Hybrid
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=176183
Printed Date: 28 Apr 2024 at 4:09am
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Topic: 8 Volt Battery on my WD45 Hybrid
Posted By: Dave Hawk
Subject: 8 Volt Battery on my WD45 Hybrid
Date Posted: 22 Nov 2020 at 4:40pm
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I have an old WD with the 45 Hp. engine on it. It came with an 8 volt battery but I think the tractor is still a 6 volt, i don't know, it had been restored when I got it. So I call it a hybrid. When I first got the tractor, the 8 volt battery lasted for several years with no external charging. The lights even worked for a some years. The last several years, I have to buy a battery every year. Even with a new one, it won't turn the starter after only a couple of months. I mow with a 5' woods mower occasionally, but I jump start it with my pick-up all the time. I don't know anything about electrical systems, but there is a pull-out switch next to the amp gauge that my Dad told me was for double charging rate. I keep it pulled put for that double charging all the time, but I don't know why my battery won't last. I have considered buying the conversion kit to 12 volt, but I feel like it's beyond my capability to do the conversion myself, not to mention the cost being over of my budget. Any expert help or advice would be greatly appreciated. Thank You |
Replies:
Posted By: steve(ill)
Date Posted: 22 Nov 2020 at 5:05pm
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8 volt batteries are basically a PATCH for an old 6 volt system. I would drop that now and get a 12 volt battery and install.. If you cant "upgrade", then just put the battery on a charger overnight once every 2 months... Forget the light switch resister and just use the generator as a belt tightener.
12 volt battery should last several years... your jumping with your truck anyway. ------------- Like them all, but love the "B"s. |
Posted By: Dave Hawk
Date Posted: 22 Nov 2020 at 5:25pm
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Wow, That's it? The 12V battery won't hurt my elec. components? I was always very quick when jumping because I was afraid I might blow something. So it will power my tractor for a couple of months between charges? That would be great! Thanks Steve
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Posted By: DSeries4
Date Posted: 22 Nov 2020 at 6:21pm
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No need to switch the starter to 12 volt. Get the starter rebuilt and rewired for 12 volts and use a voltage regulator and you are good to go. Don't forget a new 12 volt coil with a built in resistor. ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: Dennis J OPKs
Date Posted: 22 Nov 2020 at 6:32pm
| Also, if you intend to use the lights I don't think the bulbs will handle 12 volts. Other than that you're good to go. I've heard don't run a 6V starter very long continuously on 12V. On my 45 it starts very quickly and I have used the generator as a belt tightener for many years and just put a maintainer on it every so often, it's not doing heavy work all day long. |
Posted By: DSeries4
Date Posted: 22 Nov 2020 at 6:35pm
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Napa has 12 volt bulbs that fit in the stock WD45 lights. I put them in mine, can't remember the part number. ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: Sugarmaker
Date Posted: 22 Nov 2020 at 7:53pm
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Dave, I would agree that going to 12 volt system would be the best. At least I like my tractors when converted. As mentioned the starter should work ok for a long time even when left at 6 volt. I have 4 of them running that way now. The cost to convert a original WD series tractor will be several hindered dollars. But in my opinion well worth it to have them start when needed!  Regards, Chris ------------- D17 1958 (NFE), WD45 1954 (NFE), WD 1952 (NFE), WD 1950 (WFE), Allis F-40 forklift, Allis CA, Allis D14, Ford Jubilee, Many IH Cub Cadets, 32 Ford Dump, 65 Comet. |
Posted By: HudCo
Date Posted: 22 Nov 2020 at 8:08pm
| ok guys just remember if you dont have a volt meter and your starter still cranks but will not start then the battery is probley run down below 9 volts witch also means that it will freeze and be ruined. the reason iknow this is because my 45 would do that and when the amp meter went out and i replaced it with a volt meter then i could see what was going on , the main problem was the one wire alternater that you cant get spining fast enought to styart charging then when it was then it was allays cooking the the battery then when you idle for long periods it quits charging and you are running on the battery agian . so replaced it with the three wire one , no more batery problems and no more starting problems |
Posted By: Dusty MI
Date Posted: 22 Nov 2020 at 8:13pm
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Maybe the battery is being charged too heavy, try running it with the light/charging pushed all the way in. I don't remember how many years I ran a 8 volt battery in my '53 WD. ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |
Posted By: steve(ill)
Date Posted: 22 Nov 2020 at 8:22pm
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just put the 12 volt battery in the tractor..... cut the wires off the generator and tape them so they dont do anything...... If you have a MAG your ready to go... If you have a DISTRIBUTOR, then best to buy a new COIL for a 12 v system .... if you have a amp meter it will read backward if you connect the new battery to NEGATIVE ground, but that is BEST to do it.. its really pretty simple ............ the guys are right on the light bulbs if you need them.... if not, forget it. ------------- Like them all, but love the "B"s. |
Posted By: Kenny L.
Date Posted: 22 Nov 2020 at 9:03pm
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I've 3 WD and 1 WD45 the 3 Wd all use 8 volt battery's and the 45 is 12v, I've more trouble with the 45 starting then the wd's, when it come to battery and charging system I think it come down to take care of them (I'm lacking on this) but with the 8 volt system it must be kept clean and the water leave in the battery kept up, I never use the high side charging rate I think it boils the battery dry, I also believe in using battery maintainer if the battery is not use that often. That just my 2 cent worth. |
Posted By: MACK
Date Posted: 22 Nov 2020 at 9:05pm
| leave the generator hooked up, it will charge a 12v battery. You are charging amps. Leave it pis. ground and you will be ok. MACK |
Posted By: steve(ill)
Date Posted: 23 Nov 2020 at 9:11am
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Unregulated at 12 volt generator puts out over 28 volts and a 6 volt generator puts out 15 volts... as MACK said, you can use a 6 volt generator to charge a 12 volt battery.. I am doing that now on one of my Bs.... I think the problem with the OP is , his generator or regulator MAY NOT BE ANY GOOD... He cant get it to charge his 8 volt battery now.. Thats why i would forget it. ------------- Like them all, but love the "B"s. |
Posted By: jaybmiller
Date Posted: 23 Nov 2020 at 9:39am
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Bet you can 'upgrade' to a CS130 style alternatpr and 12V battery cheaper than buying a 6 volt battery and having the jenny rebuilt... Nice thing about a 12V upgrade is the abilty to jumpstart and lotsa amps for light, winches, etc. ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: Bill_MN
Date Posted: 23 Nov 2020 at 5:20pm
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One other note on the 6 volt batteries not lasting....they sit on the shelf a lot longer than 12 volt batteries because few people buy them, so they may be a year or more old before you even buy them. If you have a little money to throw at the issue call up Steve at B&B and just have him send you a whole new 12v conversion kit and harness and be done with it. Especially with your inexperience don't attempt to cobble together a system, you won't be satisfied and it may be dangerous. ------------- 1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow |
Posted By: DaveKamp
Date Posted: 24 Nov 2020 at 8:32pm
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The starter motor, being series-wound, isn't at any serious risk when running on 12v, as it speeds up, it limits it's own current... The starter bendix can sometimes be a bit finicky as the motor ramps it over quicker... but usually they do just fine. I'm with others- if someone put in an 8v, it's either because there was some other unaddressed issue that was causing it to be less-than-cooperative on 6v, or they had an 8 left over and just decided to use it. The difference in voltage was insignificant for the stock coil, lights, etc, and the generator likely didn't have any issue with the extra two... the coil, being a duty-cycle-limited device, might've run a tad warmer, but not much. If it were me, I'd swap the lamps to LED, put in a 12v battery, new battery cables and ground strap, 12v alternator, new coil, electronic ignition kit, go negative-ground, and live happily-ever-after... ------------- Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest. |
Posted By: Bill Long
Date Posted: 25 Nov 2020 at 10:41am
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Back in the day the 8 volt battery was used in many Allis Chalmers tractors. Gave the starter a little "extra" kick and did not have to change any wiring. However, with the advent of the 12 volt system that is the way to go. Call Steve NJ and he has the necessary wires and whatever to transfer to the 12 volt system. Do they still make an 8 volt battery Good Luck! Bill Long
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Posted By: Ray54
Date Posted: 25 Nov 2020 at 3:04pm
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It seem you don't want to spend for the real fix, which is fine been there done that. But to keep going and getting use out of your machine, disconnect the battery when your done using it. Put the battery on a charging device and keep it charged but that should only take few hours. Over charging will also be bad for the battery life. A cheap multi meter from HF would be very helpful to know what the charge in your battery is if you don't do the real fix now. As was explained 12 volt battery is cheaper than a 6. If you don't need lights all is simple. Hunt this thread up again when funds and time permit the real fix. Keep it 6v or change to 12v both will work. Without a computer not much to mess up that is high dollar. Read and learn more, you can do it yourself. Just have to decide if you want the original or the todays more common 12v.
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