JohnT took your advice on 6v starter on 12v

Geo-TH,In · Feb 17, 2015

JohnT.
I couldn't find a 12v starter for Farmall C. So I took your advice and installed a battery with fewer CCA. Old battery measured 350CCA. Used mower battery measured 175 cca. I have other better mower batteries, decided to start out with the weakest.

This wouldn't work on a tractor that didn't have a magnetio. I'm sure the cranking voltage wouldn't be enough. But the mower battery really softened the blow to the starter. It's almost like returning it to a 6v system on the first crank, second crank faster that a 6v, third crank it started great. I'm a happy camper.

Don't really care about the mower battery. I have many spare ones. It 5 years old and they are cheaper than a starter drive and a starter ring. I've already replaced the starter drive once.

Thanks for the tip.
George

gene bender · Feb 17, 2015

Looks like you have ground going to the lite sw area probably why it didnt start on 6v that area get rusted over the yrs and sure makes a poor ground.

Geo-TH,In · Feb 17, 2015

What you may be looking at a ground wire I run to dump trailer to charge battery. You may also be looking at an hour meter I installed.

This tractor was converted to 12v before I bought it. After having a chipped tooth of starter ring on Jubilee and replaced the starter drive on Farmall, I've decided to do something to fix over powering a 6v starter. JohnT suggested a smaller batter, which I an happy to report works great.

David G · Feb 17, 2015

You can also update the starter drive to the new style and be done with it.

Geo-TH,In · Feb 17, 2015

Please Post a link in case I need a new one.

John T · Feb 17, 2015

Good to hear, however you reallyyyyyyyyyyy went to a smaller battery. I was thinking more like downgrade from a 700/800 to maybe a 400 to 500 CCA. Id be afraid a battery that small may not do the job in cold weather but hey if it works it works I guess. If its a battery powered coil distributor ignition in cold weather the voltage may drop too low for a good spark??? It also depends on the tractors compression and grade of oil and temperature.

Oh well do what works I guess and best wishes

John T

Geo-TH,In · Feb 17, 2015

JohnT,
I have a battery conductivity tester. My old battery was showing 350 cca. The old mower battery weighed in at 175 cca. I have more powerful mower batteries, new over 400CCA.

It was cold today and worked the way I want it to work. Not that hard to install another battery, which I have 3 spare batteries on work bench.

I'm pleased with how well it works. Can't ask for more.

wilson ind · Feb 17, 2015

George I want to buy your 6 volt starter Working .on on building starting system F20 and need starter like yours. I think outboard torque may have been part of your problem

Geo-TH,In · Feb 17, 2015

Bill,
Don't have a spare 6v IH starter. I do have the 6v ford starter which I show in post below, bad drive.

I went to YT to buy a 12v starter for Farmall C and all they sell are 6v ones.

Another note, I'm glad I have a good hydraulic shop close by. So far I've had 5 cylinders out of 10 needing repaired. Ask the boy, how do I prevent them from leaking. His answer, stop using them. Sounded something like you would say.

wilson ind · Feb 17, 2015

thats what I want the ford 6 volt It has the bushings close to armature that will work for what I want to make on the F 20 belt pulley tp F20 belt pulley

Geo-TH,In · Feb 18, 2015

Bill,
Have your boy stop by and pick it up. If I remember I'll put it in the truck today and have it in the pole barn. Same place he picked up your charger.

Not sure exactly which pulley you are talking about, but I'll guess it will be one of a kind starter on an F20.

Stay warm.

mkirsch · Feb 18, 2015

Was this a chronic problem, or just a one-time thing in each case?

If you were constantly chewing up ring gears or starter drives I'd agree you have some weird problem. However, if both were decades old and it only happened one time, I am more inclined to believe that age, wear, and tear was the main factor in your situation.

I have never heard of such a problem before, quite frankly. We have several tractors converted to 12V with their stock 6V starters, and have never had such problems.

Too often these days we have something fail once, and see it as a "pattern of failures." The knee-jerk reaction is to do something, anything, to make it never-ever happen again. Fact of the matter is, it may never happen again if you do nothing at all.

wilson ind · Feb 18, 2015

I wait till cold snap is over for him to pick it up He is having enough problems just getting from here to th each day We have a lot more snow than you northern folks.LOLI let you know whenhe can pick it up thanks buddy

Geo-TH,In · Feb 18, 2015

It's in the pole barn at south end of the county. Have your boy call me any time.

JohnT took your advice on 6v starter on 12v

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