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AC220 
Silver Level
Joined: 14 Sep 2009
Location: Wisconsin
Points: 56
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 Topic: how to change wd from 6volt to 12 volt.
Posted: 30 Nov 2009 at 4:22am |
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I want to change are wd from 6 volt to 12 volt and I need to know what needs to be installed and changed over. thanks guys.
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7080,7040,220,185,&6080 FWA that was sold to Larry Karg.
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StanInLowerAL
Orange Level
Joined: 13 Sep 2009
Location: South Alabama
Points: 222
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Posted: 30 Nov 2009 at 6:02am |
I made this change with my B, but did not change from points to electronic module. I used a CS 130 alternator (voltage regulator no longer needed), 12v coil and lights. I also replaced the amp gage with a volt gage. Something to stop the current flow to the alternator when the engine is stopped will be needed to keep the battery from discharging (I used a small signal light wired into the exciter wire line). I kept the 6v starter, but had it thoroughly checked before using it. I also changed to an electric solenoid switch for engaging the starter (more safe than a pull rod around kids). Since I had to entirely rewire it, I chose to use neg. ground. Here is a picture someone had previously posted.
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StanInLowerAL
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Joined: 13 Sep 2009
Location: South Alabama
Points: 222
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Posted: 30 Nov 2009 at 6:08am |
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I might should have said that the diagram shows a resistor and 6v coil. It is not clearly marked on the drawing. Sorry. Steve at B&B has great setups for this conversion as well as instructions and extensive knowledge as to what it takes to make the change safely and trouble free.
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John (C-IL)
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Joined: 11 Sep 2009
Location: Illinois
Points: 1654
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Posted: 30 Nov 2009 at 7:25am |
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I used one of of Steve's kits, it is really slick, comes with complete instructions and it totally complete right down to the silicone grease for the connections.
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TedBuiskerN.IL.
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Joined: 11 Sep 2009
Location: Davis, IL.
Points: 1959
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Posted: 30 Nov 2009 at 7:39am |
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My question is WHY? Use the correct battery cables, and keep them clean and you are fine. I can start my WD45 at -20 on six volts.
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Most problems can be solved with the proper application of high explosives.
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Murph-NC
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Joined: 11 Sep 2009
Location: Western NC
Points: 797
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Posted: 30 Nov 2009 at 7:52am |
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I've got a nearly brand new ballast resistor available if you decide to go that way. You can have it for $5 plus shipping. I decided not to use it after I bought it.
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Jerry (Ohio)
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Joined: 12 Sep 2009
Location: United States
Points: 58
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Posted: 30 Nov 2009 at 8:30am |
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If you have a generator put in 12 volt battery, change light blubs and you are ready to go. if you have an alt. you need to put a resistor between battery and coil and you are ready to use. Don't need to do anything else
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David Grubb
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Joined: 14 Sep 2009
Location: Rochester, Il
Points: 133
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Posted: 30 Nov 2009 at 10:30am |
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Dave
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Jerry (Ohio)
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Joined: 12 Sep 2009
Location: United States
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Posted: 01 Dec 2009 at 5:35am |
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StanInLowerAL
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Joined: 13 Sep 2009
Location: South Alabama
Points: 222
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Posted: 01 Dec 2009 at 6:14am |
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I have always been told that the coil voltage rating needed to be the same as the battery, or if 12v battery use a resistor in line between the battery and 6v coil. What about it from the electrical guru's??
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Steve in NJ
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Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11883
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Posted: 01 Dec 2009 at 11:41am |
As John mentioned, we offer a complete 12V conversion kit for the WD/WD45 in kit form with step by step instructions. Gives you eveything needed for wiring along with the correct switches & Voltmeter. We also offer an optional frame rail Alternator mount to position and dial in the Alternator to the engine. Drop us a line or give us a call. Be glad to help you out. Thank you John for the mention!
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Brian Jasper co. Ia
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Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508
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Posted: 01 Dec 2009 at 12:05pm |
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Stan, the 6v VS 12v question came up on the "N" Ford tractor board some time ago. Somone did the math to figure out voltage vs. amperage on a coil so the the points would live. I'm sure they came up with a coil primary circuit of 3 to 4 ohms that would keep the amps down to where the points would last. I'd like to say the amps were in the 1-2 range. Can't remember for sure.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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MikeB
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Joined: 17 Sep 2009
Location: PA, IN
Points: 14
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Posted: 02 Dec 2009 at 10:47am |
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