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8 Volt Battery on my WD45 Hybrid

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Dave Hawk View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave Hawk Quote  Post ReplyReply Direct Link To This Post Topic: 8 Volt Battery on my WD45 Hybrid
    Posted: 22 Nov 2020 at 4:40pm
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
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steve(ill) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2020 at 5:05pm
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.


Edited by steve(ill) - 22 Nov 2020 at 5:07pm
Like them all, but love the "B"s.
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Dave Hawk View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave Hawk Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2020 at 5:25pm
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote DSeries4 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2020 at 6:21pm
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
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dennis J OPKs Quote  Post ReplyReply Direct Link To This Post 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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DSeries4 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2020 at 6:35pm
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
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sugarmaker Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2020 at 7:53pm
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!Smile
 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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post 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
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dusty MI Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2020 at 8:13pm
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"
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2020 at 8:22pm
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kenny L. Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2020 at 9:03pm
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.     
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post 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
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steve(ill) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2020 at 9:11am
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jaybmiller Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2020 at 9:39am
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
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill_MN Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2020 at 5:20pm
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.


Edited by Bill_MN - 23 Nov 2020 at 5:23pm
1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DaveKamp Quote  Post ReplyReply Direct Link To This Post Posted: 24 Nov 2020 at 8:32pm
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...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill Long Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2020 at 10:41am
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ray54 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2020 at 3:04pm
 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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