ballast resistor P/n?

Billybuck123 · Aug 30, 2015

stopped this morning & picked up a resistor it drops v from 12 to 8 but its not a ballast resistor, what is the max volt drop with a ballast resistor? thanks for any info

Bob · Aug 30, 2015

There's NOT enough information in your post to allow for a meaningful answer.

Voltage dropped across a resistor is determined by it's resistance and the current passing through it.

In addition, the resistance of a "ballast resistor" varies with it's temperature, which is affected by ambient temperature, and the current passing through it.

Are you trying to drop enough voltage to run a "6 Volt" (actually, about 4.5 Volt coil) on a 12 Volt system?

Billybuck123 · Aug 30, 2015

(reply to post at 15:05:07 08/30/15)

my 12v 8n runs crappy after 30 minutes, so I installed new coil & research the resistor, I didn't see a resistor on the tractor so I bought one, the resistor helped the coil from breaking down so fast...cant bushhog in second gear though...

old · Aug 30, 2015

You should not brush hog in 2nd gear any how much to fast unless just mowing a lawn. Always trouble shoot then worry about parts. Check spark and gas flow then go form there

R Geiger · Aug 30, 2015

(quoted from post at 06:56:12 08/31/15) stopped this morning & picked up a resistor it drops v from 12 to 8 but its not a ballast resistor, what is the max volt drop with a ballast resistor? thanks for any info

which 8n do you have? the side mount dist ones do not use the ballast resistor.

Billybuck123 · Aug 30, 2015

(reply to post at 17:46:50 08/30/15)

Front mount, Thank you

Bruce (VA) · Aug 31, 2015

Here is the p/n w/ a terminal block.

Do you have a 12 volt coil? (see tip # 30 at the link)

http://www.yesterdaystractors.com/Ford-8N_Resistor-Assembly_A8NN12250A.html
75 Tips

ballast resistor P/n?

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