tractorpoint.com - The leader in Tractors from Compacts, to Utility, to Full Size Tractors! Kubota, John Deere, New Holland, Kioti, Case/IH, and Others. Keywords=Compact Tractor, Kubota Tractors,  Kioti Tractors, JD, John Deere Tractors, New Holland, Case Boomer, Used Tractors, Classifieds, Dealer Directory, Tractor Pictures / Images
  parts   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up

Forums > Active Threads > Other Tractor Brands > Antique Tractors

Post Message Antique Tractors

 Go Bottom
____________________________________________________________________________________
Farmall Super H hot coil after 6 volt to 12 volt conversion

View my Photos
mosesbruce
Join Date: Jul 2012
Posts: 5 mason Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2012-07-02          184116


i have a farmall super H, it was a 6v system but i coverted it to a 12v system, when i did this i replaced the 6v coil with a 12v coil, and it runs really good for about 20 minutes then the coil heats up and shuts off, I have retimed it and reajusted the points, and the pluggs are in good condition, also the ignition switch is good, so I do not know what to do next to get it to work

Reply to | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo


____________________________________________________________________________________
Farmall Super H hot coil after 6 volt to 12 volt conversion

View my Photos
treeman
Join Date: Feb 2002
Posts: 251 Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2012-07-02          184117


Are you running a pos or neg ground system? On a neg ground system, your points should be on the neg side of the coil. ....

Reply to | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo


____________________________________________________________________________________
Farmall Super H hot coil after 6 volt to 12 volt conversion

View my Photos
mosesbruce
Join Date: Jul 2012
Posts: 5 mason Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2012-07-02          184118


it was a pos ground system when it was 6v but i changed it to a neg ground with the 12v, right now the wire from the distributer is on the neg post on the coil, and the wire from the ignition switch is on the pos post on the coil ....

Reply to | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo


____________________________________________________________________________________
Farmall Super H hot coil after 6 volt to 12 volt conversion

View my Photos
Cyrus55
Join Date: Feb 2012
Posts: 58 W TN
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2012-07-02          184122


I suspect you have a twelve volt coil that says, on the side,(external resistor) and you need to add one. Unless the 12 volt coils specifically say "internal resistor," they need an exteral resistor.
They used Delco resistors when IH switched to 12 volts. See if your local Autozone or such has a resistor for the firewall of a '63 Chevy 6 cylinder. It should work.
I use either a:

Wells AL795 (because it has the metal strap to attach to newer coil holders and includes small bolts to attach wires) {this matches what IH used when they went to 12 volt for the 460/560} or
Wells CR101 (it is a thicker ceramic holder and poses a problem attaching)

It goes between the wire from the ignition switch and the + terminal of the coil. Later coil holders had a tab to screw it to, but you may have to make a tab to mount it to the bolt that holds the coil to the distributor. ....

Reply to | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo


____________________________________________________________________________________
Farmall Super H hot coil after 6 volt to 12 volt conversion

View my Photos
mosesbruce
Join Date: Jul 2012
Posts: 5 mason Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2012-07-02          184125


well i tryed putting the 6v coil back on and a 12v to 6v resister on the ignition line but the coil still heated up and the tractor shut off, is it possible that the resister is bad or what?? ....

Reply to | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo


____________________________________________________________________________________
Farmall Super H hot coil after 6 volt to 12 volt conversion

View my Photos
myfarm
Join Date: Jun 2014
Posts: 2 ohio
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2014-06-29          190572


did you have a 6 or 12 volt battery ....

Reply to | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo



Return to index    Go Top


Share This



Tractorpoint Parts
Fast Delivery!
Low Prices
Tractor Driveline PTO for sale
Driveline Components
Assembly | Clutch
Half CV