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04-27-2012, 01:38 PM | #1 |
Junior Member
Join Date: May 2010
Posts: 20
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ballast resistor
Hi, I just bought a 1948 pickup 8ab engine that is suppose to be rebuilt. I want to start it on a engine stand. Is there a resistor before the coil, and will a resistor from a 55 chevy work? I apologize to all the guys that gave me leads for my touring parts, I lost my job so I have cut back on my spending. Jim
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04-27-2012, 01:48 PM | #2 |
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Join Date: May 2010
Location: Mid coast Maine
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Re: ballast resistor
I,m guessing its 6 volt,55 chevy is 6 volt and 6 volt coil could use as is.No Resister.
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04-27-2012, 01:54 PM | #3 |
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Join Date: Oct 2010
Location: Mantua, Ohio
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Re: ballast resistor
55 chevy is 12 volt.
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04-27-2012, 01:56 PM | #4 |
Senior Member
Join Date: Oct 2010
Location: Mantua, Ohio
Posts: 269
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Re: ballast resistor
55 ford is 6 volt.
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04-27-2012, 02:57 PM | #5 |
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Join Date: Nov 2011
Location: whitehall pa.
Posts: 439
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Re: ballast resistor
Sonny, you are correct, 55 chevy is the first year for 12 volt in chevy. and thier 265 v8. it won't hurt if you put one on the coil.
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04-27-2012, 03:05 PM | #6 |
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Location: Southern Illinois
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Re: ballast resistor
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04-27-2012, 04:02 PM | #7 |
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Join Date: May 2010
Location: Mid coast Maine
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Re: ballast resistor
If your are using a 6 volt battery,and have a round coil that is 6 volt,no resister is needed.
If you have a 12 volt battery you need a 12 volt coil and 1.5ohm resister. |
04-27-2012, 04:21 PM | #8 |
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Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,426
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Re: ballast resistor
I don't know about the GM & other makes but FoMoCo used the same coil well up into the 12-volt era. The 12-volt vehicles used a ballast to control the amperage to the coil where the 6-volt vehicles didn't need one. The late type (1948/49 & later)round can coils were an improvement in technology and could take more heat than the old plastic covered iron core coils could.
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