200 coil

dewy · Oct 9, 2014

coils getting hot ....12v.....alt. said to use lamp,then fuse..do i use coil with or without resister....thanks dewy

gene bender · Oct 9, 2014

Either get a resistor on input side of the coil or just get a 12v coil

John T · Oct 9, 2014

On a 12 volt tractor you obviously use a 12 volt coil or else use a 6 volt coil PLUS an external series voltage dropping (12 to 6) ballast resistor.

A 12 volt coil may be labeled "12 Volts" or "12 Volts NOT for use with ballast resistor"

HOWEVER if its labeled "12 volts for use with ballast" IT MEANS WHAT IT SAYS and requires a ballast

Have you checked battery voltage?? If the voltage regulator is bad it may be raising battery voltage to 15 volts or so which will raise coil temperature plus it will cook the battery eventually plus acid will boil over.

A 6 Volt coil (needs ballast on a 12 volt tractor) has a LV Primary resistance of around 1.25 to 2 ohms while a 12 volt (no ballast required) will be more like 2.5 to under 4 ohms.

John T

clint s · Oct 9, 2014

Dewy do a search under my name. On my 200 the coil gets pretty hot. I would say 150 degrees or so.

http://forums.yesterdaystractors.com/viewtopic.php?t=1163688&highlight=

Janicholson · Oct 9, 2014

As the others said, use a ballast resistor (mid 60s chevrolet, or chrysler ignition resistor will do) the fuse is the same as 6v, and the lamps need to be 12v. (they have nothing to do with the coil however) Jim

souNdguy · Oct 9, 2014

napa IC14SB is a native 12v coil. no resistor needed.

no extra connections at a resistor, less chances for soemthing to go wrong.

200 coil

dewy

Member

gene bender

Well-known Member

John T

Well-known Member

clint s

Member

Janicholson

Well-known Member

souNdguy

Well-known Member

Similar threads