Another electrical question

Heath72 · Mar 29, 2011

I am thinking about buying a new 8 volt battery for one of my tractors with a 6 volt system. Someone told me that all the 6 volt components that I currently have on the tractor will work fine with the 8 volt batt. Can anyone confirm this? The only two items that really concern me would be the coil and voltage regulator.

Thanks,
Heath

SouthernFarmall · Mar 29, 2011

I have heard that, too, but have never tried it. My 6 volt 140 cranks slow 'n' steady, even in cold weather. If yours won't crank, you might try checking your cable connections or using larger wires.
SF

KEB1 · Mar 29, 2011

Light bulbs will be brighter but won't last nearly as long. Points may also burn a little faster but probably aren't a big deal unless you're using the tractor every day.

If you have an actual voltage regulator it'll have to be adjusted to charge an 8 volt battery. If you have a cutout relay, it'll charge an 8 volt battery, just not as fast as a 6 volt one. A 6 volt regulator will limit generator output to about 7.2 - 7.5 volts, not enough to charge an 8 volt battery.

A cutout relay simply disconnects the battery from the generator when its not running, but doesn't limit the output voltage of the generator.

Generally, an 8 volt battery is an attempt at a quick & dirty patch job instead of fixing the actual problem. You don't say why you want to change, so we can't offer any suggestions to make sure the existing 6 volt system works the way it should.

Keith

old · Mar 29, 2011

8 volt battery at best is a band aid fix for other problems. Unless you do some things to the generator system at best you will have a battery that is maybe if lucky 7 volts plus as the other guy said if you have lights they will not last as long. Plus when was the last time you saw an 8 volt battery charger??? So again how would you change the battery if it went dead?? 6 volts is not enough and 12 volts to much

RayP(MI) · Mar 29, 2011

Change the thing over to 12 volts. Add a balast resistor, change it out to an alternator, replace bulbs. You'll be happy with the results. There are instructions in this site.

Janicholson · Mar 29, 2011

For 20 to 30 HP tractors (or smaller) a "O" gauge cable is needed, For tractors with more HP "OO" gauge cables work. 6 volt is just fine. Jim

old art · Mar 29, 2011

take your starter off and take it apart and clean the inside polish the armetur check the bearings lube tham put in new brushes and clean the flange that mountsit to the blockand the block get a goog connection new battery cables clean all connection . it will work brtter for shure try it you will like it

Bspauld · Mar 30, 2011

My brother in law bought a new WD in 52. He would put a 8 volt battery in it for the winter, a 6 volt just didnt spin it good enough to start it, I'm talking 0 degrees or colder. He never had any problem with lights or coil,

hd6gtom · Mar 30, 2011

Put an 8 volt battery in WD45 years ago, did not notice any difference in starter preformance.

Heath72 · Mar 30, 2011

This tractor is going to be restored, and has a freshly rebuilt generator(I like to keep the generators on my restorations), so I am not interested in the 12V conversion. I am just thinking the 8V might spin the motor over a little faster and decrease the chance of the battery wearing down on those occations when the tractor is being a little stubborn.

Another electrical question

Heath72

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SouthernFarmall

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KEB1

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old

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RayP(MI)

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Janicholson

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old art

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Bspauld

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hd6gtom

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Heath72

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