Factory high output alternator?
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Busboy
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Factory high output alternator?
I just bought a 71 base model custom f-100. I think it has the factory optional larger alternator. There is an additional relay under the right side horn near the voltage regulator. It all looks factory. Does anyone have any experience of photos of this? I can't find anything in the wiring diagrams.
1967 F-100 4x4 custom cab.
Another 67 F-100 4x4 custom cab.
2016 F-150 Eco-Boost 2.7 liter. (It will smoke the tires!)
1972 F-350 Sport Custom cab & chassis.
1972 F-250 Explorer Special, Camper Special.
1971 F-100 custom. 302, C-4, p.s. p.b. factory 65 amp alternator with transistorized voltage regulator.
Another 67 F-100 4x4 custom cab.
2016 F-150 Eco-Boost 2.7 liter. (It will smoke the tires!)
1972 F-350 Sport Custom cab & chassis.
1972 F-250 Explorer Special, Camper Special.
1971 F-100 custom. 302, C-4, p.s. p.b. factory 65 amp alternator with transistorized voltage regulator.
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Ranchero50
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Re: Factory high output alternator?
The little relay should be for the horns. Takes the negative ground signal from the button to fire that relay which puts 12v to the horns.
There were some larger alternators used on he big trucks, physically larger. Shouldn't be a big deal unless you have an alt gauge, then all the current is flowing through it and back to the battery.
There were some larger alternators used on he big trucks, physically larger. Shouldn't be a big deal unless you have an alt gauge, then all the current is flowing through it and back to the battery.
'70 F-350 CS Cummins 6BT 10klb truck 64k mile Bahama Blue
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Contact me for CNC Dome Lamp Bezels and Ash Tray pulls.
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Busboy
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Re: Factory high output alternator?
No, it's not the horn relay, again, this one is under the right side horn.Ranchero50 wrote:The little relay should be for the horns. Takes the negative ground signal from the button to fire that relay which puts 12v to the horns.
There were some larger alternators used on he big trucks, physically larger. Shouldn't be a big deal unless you have an alt gauge, then all the current is flowing through it and back to the battery.
1967 F-100 4x4 custom cab.
Another 67 F-100 4x4 custom cab.
2016 F-150 Eco-Boost 2.7 liter. (It will smoke the tires!)
1972 F-350 Sport Custom cab & chassis.
1972 F-250 Explorer Special, Camper Special.
1971 F-100 custom. 302, C-4, p.s. p.b. factory 65 amp alternator with transistorized voltage regulator.
Another 67 F-100 4x4 custom cab.
2016 F-150 Eco-Boost 2.7 liter. (It will smoke the tires!)
1972 F-350 Sport Custom cab & chassis.
1972 F-250 Explorer Special, Camper Special.
1971 F-100 custom. 302, C-4, p.s. p.b. factory 65 amp alternator with transistorized voltage regulator.
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bluef250
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Re: Factory high output alternator?
Probably an add on from a PO. Is it wired to anything? What does it look like?
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Busboy
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Re: Factory high output alternator?
It's factory installed.
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1967 F-100 4x4 custom cab.
Another 67 F-100 4x4 custom cab.
2016 F-150 Eco-Boost 2.7 liter. (It will smoke the tires!)
1972 F-350 Sport Custom cab & chassis.
1972 F-250 Explorer Special, Camper Special.
1971 F-100 custom. 302, C-4, p.s. p.b. factory 65 amp alternator with transistorized voltage regulator.
Another 67 F-100 4x4 custom cab.
2016 F-150 Eco-Boost 2.7 liter. (It will smoke the tires!)
1972 F-350 Sport Custom cab & chassis.
1972 F-250 Explorer Special, Camper Special.
1971 F-100 custom. 302, C-4, p.s. p.b. factory 65 amp alternator with transistorized voltage regulator.
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sargentrs
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Re: Factory high output alternator?
Odd looking alternator. Never seen one with a back like that. Does it have a serial no/model no plate on it?
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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67F100_rookie
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Re: Factory high output alternator?
Aftermarket headlamps maybe? I’ve seen relays mounted there for those high speed lights before. It does look factory, though. I have condenser in the same spot on mine.
1968 F100 240 CID Longbed (in progress)
1968 F100 Shortbed (in the que)
1968 F100 Shortbed (in the que)