I have been through several "Rebuilt" Alternators I got from "O" Really`s. Last one I actially found in PNP that had just been replaced and wasn`t even dirty. Had it on the shelf for a couple years before installing it.
Ran it 77K Miles, and noticed when the engine idled, the lights would dim, and brighten up when picking up the speed.
A few years back my John Deere 950 Alt took a dump, found some burned wires etc... (Long Story) and finally went with a one wire Alt I got off Steiner Tractor. A 35 Amp made in China, where else?
original was 25 amp.
Going this route I was able to eliminate a lot of wires in the Harness, But did need to add a Volt meter (suppose to activate the Alt)
One wire`s have been used in the auto industry a long time.
And there have been a ton of threads going to the G3 and what wires to get from a wreck in the JY`ds.
Seems like the only alternators are mostly rebuilt ones.
I thought about going the G3 route for a while.
But went with a one wire Power Master 130amp new one.
I ran a 6G ground from the rear bolt straight to the Neg. on the battery.
Ran a 6G positive from the Alt. to the Pos side of the battery.
The 3 that went to the top of the old Alt, (as I remember) connected them together....and deep six`d the old regulator.
They recommended a smaller pulley (113) to spin the Alt faster.
As we know, the stock Pulley, one side is deeper than the other side. new one in same on both sides, so the big belt rides higher in the groove.
Thinking of taking the stock one and have it turned down on that one side to match the 113.
Every time we modify something, there is always some tweaking of the next thing down the line, and what fun is there if we don`t have to s crew with something when we were trying to get something else to work better.
Goat