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Farmall & IHC Tractors Discussion Forum
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Alternator Short?

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SuperCDon

07-22-2006 05:51:11




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I have a SuperC converted to 12V. All new wiring harness. It has been running fine, but last night I noticed that when I turned on the ignition switch, the metal line on my TouchControl temperature guage got so hot that it melted the plastic covering on the line. It"s a new guage from OEM. My battery is negative grounded to the steering pedestal at the battery box. What could cause the metal tube of the guage to get so hot (too hot to hold onto)? Could the regulator in the alternator have shorted out? If not, any ideas on what"s happening?

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Janicholson

07-22-2006 12:19:01




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 Re: Alternator Short? in reply to SuperCDon, 07-22-2006 05:51:11  
I am sure you have a bad ground in the light bar mount. The battery neg terminal should be connected to a starter bolt for best current transfer. The cables should be 0 gauge or 00 gauge. The post is probably poorley grounded, and the current is traveling through the gauge tube. Fix this before it ruins the gauge, or starts a fire. A bad regulator or shorted diode would drain the battery very rapidly, or at best overnight. and it probably would not charge. Ground problem it is. JimN

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