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#1 |
chevy truck fan
Join Date: Mar 2005
Location: Gilbert, arizona 85298
Posts: 2,045
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Re: What is the BROWN Alternator Wire for?
I like this.. a lot of good information here. it is falling in line with a question I have. I have a '86 c10swb that had a 305 and Silverado package. If I understand right the same brown wire on my harness would be the volt meter supply (?) wire? also I am curious how it plays in relation to the current LS swap, which I am in the middle of? it is connected to a 2 prong connector that has a H.D. red wire that I believe ran directly to the batt. or junction block that was attached to the firewall above the engine.
thanks!! |
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#2 |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,672
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Re: What is the BROWN Alternator Wire for?
No, it simply provides 12 volts to the alternator to "excite" it. Voltmeter should be connected to a 12 volt ignition source.
__________________
Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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