Alternator

Reply Subscribe

Thread Tools

Search this Thread

Apr 25, 2025 | 09:17 AM

RA111225

Thread Starter

Banned

Joined: Apr 2025

Posts: 27

Likes: 8

Alternator

Got me a 1971 F100 360 4V. The wiring has been hacked up over the years. It runs pretty good. Need the new carb tweeked. Question is: Alt only putting out about 12.6v. I know it should be putting out between 13.5-14.5. This alt has an internal voltage regulator. I know 12.6 ain't gonna hack it. Anyone install a 1 wire alt?
Thanks, Bob

Apr 25, 2025 | 09:32 AM

JPG37

Cross-Country

Joined: Jun 2022

Posts: 63

Likes: 33

I installed a junk yard alternator out of a 1996 Mercury Sable (I believe) and it works great for the $20 I paid for it. It puts out 130 amps compared to the 55 amp stock alternator, which in turn does make my Holley Sniper FI work better.

Apr 25, 2025 | 07:06 PM

BobbyFord

Logistics Pro

Joined: Jun 2003

Posts: 3,928

Likes: 275

I have a 130a 3G out of 94 Mustang in my 72. I had the ammeter converted to a volt meter.

Apr 25, 2025 | 08:23 PM

BobbyFord

Logistics Pro

Joined: Jun 2003

Posts: 3,928

Likes: 275

I did a write-up on my 3G conversion…

https://www.fordification.com/forum/...ic.php?t=82359

Apr 28, 2025 | 08:13 AM

fe390pc

Logistics Pro

Joined: Mar 2009

Posts: 4,855

Likes: 607

From: Minnesota

I would also recommend the 3G conversion. Its not bad to install at all.

Apr 28, 2025 | 09:23 AM

crowbar

Cross-Country

Joined: Jan 2003

Posts: 53

Likes: 17

From: Phoenix

I paid the $80 for a new alternator harness to keep it original and maintain the dash light. Sounds like yours is already modified with if it has an internal voltage regulator so I'd go that route.

Apr 28, 2025 | 10:41 AM

RA111225

Thread Starter

Banned

Joined: Apr 2025

Posts: 27

Likes: 8

Update! I was messing around with wiring under the dash and hood. I had installed a digital volt meter. After messing with wiring ensuring all connections were solid, bingo, 14.6 volts. Old a$$ wiring sucks. Thanks for all the input. I will make sure I refer back to this IF it doesn't work out.