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Antique Caterpillar Machinery Owners Club
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Pony Motor Electric Start Conversion
Pony Motor Electric Start Conversion
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Posts: 16
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2 years 9 months ago #235567
by mjspicer1980
Has anyone converted their 6V starter motor to 12v? If so how? Did you have the motor rewound for 12v?
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Fat Dan
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2 years 9 months ago - 2 years 9 months ago #235581
by Old Magnet
I've been running 6v starter motors on 12v for decades without issue. Helps to have the higher cranking rpm too. Just don't crank it to death. It's a little harder on the drive spring but I haven't had any issue there either.
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2 years 9 months ago #235584
by Steve A
I have a D2 with a electric start pony. I dont keep batteries in everything because I am cheap. It starts so easy with a rope its not worth the effort to carry a battery to it.
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2 years 9 months ago #235592
by Fat Dan
Here one can see on my 8T starter where a previous owner left the 6V starter but the rest of the system had been converted to 12V. They had painstakingly changed the generator to 12V but left the robust starter at 6V. You can see they used a 12V momentary relay. Like Old Magnet said they have been running 6V starters on 12V for awhile now.
ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade
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2 years 9 months ago #235610
by mjspicer1980
Haha. The place called and they want $500.00 to convert the starter to 12V. Hard pass, I'll just use the rope from now on.
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2 years 9 months ago #235632
by Ray54
I have been running 6V pony starters on 12V for 35 years or more have yet to burn up a motor. But it is your machine your choice. Mine is a D6 so you have to be up on the track. So always risking a miss step and a fall on the old pig iron.
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Antique Caterpillar Machinery Owners Club
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Pony Motor Electric Start Conversion
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