Alternator wiring.
Thread Starter
|
Freshman User
Joined: Jul 2004
Posts: 45
Likes: 0
From: Salmon, Idaho
Alternator wiring.
Upgraded the alternator in my 89. The new one is rated at 120-amps. The load sheet that came with it indicated a peak output of 135-amps.
Since I installed it, I've blown two 14-guage fusible links. The stock one and the replacement I installed.
This means the new alternator is delivering more amps than the stock wiring can handle, and I need to rewire.
In stripping out the factory harness I found two parallel leads from the alternator, Black wires with white tracers, that are then connected to the fusible link. Why did Ford run the two wires several feet before combining them? The extra couple of feet of parallel wires had to have cost a lot of money, when you figure the cost of that couple of feet in all of the V8 wiring harnesses.
I doesn't make sense to me And, I'd like to know why they did it.
Since I installed it, I've blown two 14-guage fusible links. The stock one and the replacement I installed.
This means the new alternator is delivering more amps than the stock wiring can handle, and I need to rewire.
In stripping out the factory harness I found two parallel leads from the alternator, Black wires with white tracers, that are then connected to the fusible link. Why did Ford run the two wires several feet before combining them? The extra couple of feet of parallel wires had to have cost a lot of money, when you figure the cost of that couple of feet in all of the V8 wiring harnesses.
I doesn't make sense to me And, I'd like to know why they did it.
Fleet Mechanic
Joined: Sep 2003
Posts: 1,716
Likes: 15
In stripping out the factory harness I found two parallel leads from the alternator, Black wires with white tracers, that are then connected to the fusible link. Why did Ford run the two wires several feet before combining them? The extra couple of feet of parallel wires had to have cost a lot of money, when you figure the cost of that couple of feet in all of the V8 wiring harnesses.
I doesn't make sense to me And, I'd like to know why they did it.
I doesn't make sense to me And, I'd like to know why they did it.
In the "let's-burn-down-the-vehicle" alternator that had the B+ connection as a plug-in on the periphery of the alternator, the two wires went through two different pins on the alternator towards battery inline harness connector. This allowed a smaller multi-pin connector to be used.
Thread
Thread Starter
Forum
Replies
Last Post
missrankin
1961 - 1966 F-100 & Larger F-Series Trucks
3
Oct 3, 2018 10:38 AM
teds74ford
1973 - 1979 F-100 & Larger F-Series Trucks
5
Nov 28, 2005 09:53 PM
LonnieD
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
1
Jul 16, 2004 10:35 PM
