6 volt to 12 volt "CA" conversion
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=47430
Printed Date: 03 Jul 2024 at 6:10am
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Topic: 6 volt to 12 volt "CA" conversion
Posted By: JarrodACFan
Subject: 6 volt to 12 volt "CA" conversion
Date Posted: 17 Mar 2012 at 7:23am
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what all has to be changed to change My CA from 6 volt to 12 volt, I know the obvious to change bulbs and battery. I don't think the starter has to be changed. and I would need to replace the generator with a self regulating alternator. Anything else or things to watch for. thanks, Jarrod ------------- 1956 WD45 Narrow Front Factory Power Steering, 1953 WD Wide Front Allis Express in Muncie, IN |
Replies:
Posted By: R.W
Date Posted: 17 Mar 2012 at 7:26am
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You will need a resistor for the coil. ------------- In Search Of: 1958 Allis Chalmers D17 Diesel serial #9643D |
Posted By: CTuckerNWIL
Date Posted: 17 Mar 2012 at 8:09am
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I wouldn't mess with buying a resistor for an antique coil. Buy a new 3 ohm coil and be done with it. The other thing you will need is a diode in line with the alternator or you may have trouble shutting the engine off. Switch to neg ground and reverse the wires on the coil.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Gerald J.
Date Posted: 17 Mar 2012 at 10:59am
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Need to swap the wires on the ammeter too and for the alternator probably put in a 50 or 60 amp ammeter in place of the original 20 or 30 amp. It is possible to rewind the generator for 12 volts or to find a 12 volt generator or to just turn the 6 volt one faster, but that means it may not charge at slow engine speeds where the alternator will do very well. You'd need a 12 volt regulator for the modified or sped up generator and it has to match the field circuit if you get another from a car or truck. Gerald J. |
Posted By: mdm1
Date Posted: 17 Mar 2012 at 2:53pm
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Check out Duey's page. Really helpful infohttp://dueyschutter.freeservers.com/photo3.html ------------- Everything is impossible until someone does it! WD45-trip loader 1947 c w/woods belly mower, 1939 B, #3 sickle mower 1944 B, 2 1948 G's. Misc other equipment that my wife calls JUNK! |
Posted By: CTuckerNWIL
Date Posted: 17 Mar 2012 at 3:26pm
Maybe I'll do that to my 45 when I get rountu replacing the key switch. Mine has been swinging to the right when I turn the lights on and to the left when the tractor is running. doesn't hurt anything as long as the operator knows about it.  ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Gerald J. wrote:Posted By: Gerald J.
Date Posted: 17 Mar 2012 at 6:18pm
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Ammeter backwards will work fine forever but confuse the inexperienced operator. Gerald J. |
Posted By: DennisA (IL)
Date Posted: 17 Mar 2012 at 8:37pm
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Why would you want to? If you fix the problem you won't have to change wiring, battery, coil, lights, gauges & generator.
Would it not be easier just to fix the starter and use the right size battery cables? 6 volt battery turns my "CA" over with ease. ------------- Thanks & God Bless Dennis |
Posted By: JarrodACFan
Date Posted: 17 Mar 2012 at 8:51pm
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I am still undecided on whether to switch it to 12 volt. If the generator is bad, I will go ahead and switch it over. ------------- 1956 WD45 Narrow Front Factory Power Steering, 1953 WD Wide Front Allis Express in Muncie, IN |
Posted By: Steve in NJ
Date Posted: 17 Mar 2012 at 10:15pm
We offer a complete 6V-12V conversion for the B,C,CA Tractors. Gives you everything needed to do a pro wiring job. Complete with step by step instructions also. If interested, drop us a line at customcircuits@gmail.com Be happy to help you out. This one happens to be for the WD/WD45, but the B,C,CA version is very similar... Steve@B&B
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