Do I have to overhaul my alternator?

[Pilot135pd]

Originally Posted by Ruready

Negative does not need it, never saw that bfore

That's how it came from the factory

[BillL]

I think this is the correct diagram for the 8521LS alternator. It appears the B+ is attached to the stator wire - but who knows how accurate that is with production changes. If it is attached, let's hope it works with the extra nut. Just in case when torquing the jam nut, don't allow the "stud" to rotate.

It appears to be made by Prestolite - who makes (made?) custom low production volume alternators for heavy duty applications. I have not found any "general" will-fit parts for it. Most parts are cubic $ by comparison to automotive.

[Ruready]

Cant see the second nut being a problem, the pic I posted yesterday pointing out the nylon insulator has the second nut and here is another pic of an ALU8521 with the cable securing nut still on it.

A very nice thing about this alternator is they made the brush removal and install extremely simple, take the two screws out circled in red and the brush assy pops out, no sticking a rod in hole to secure them like my 10DN alternators. Once that brush assy is out there is NOTHING inside the alternator that can pop out and get lost like the op is concerned about. Seriously, not joking a 2 year old could take this apart and put it back together and it would work, a 5 year old could do the 10DN, 2 might have a problem with the 10DN brush holder, but this ALU8521 is like a snap together model

[Pilot135pd]

Originally Posted by BillL

Just in case when torquing the jam nut, don't allow the "stud" to rotate.

If I could post a link to YouTube I would upload a short video I took that shows that the stud, when pulled out, locks in place and can't rotate, so that's one less worry I had.

I installed it yesterday and I hope to get a chance to test run it later today. I'm slow due to being medically grounded for the last couple of weeks ( I can only partially see out of my left eye due to surgery ) and the doctor would most likely be upset at me if he saw what I've been doing the last few days but I hope to be cleared by next month.

Originally Posted by Ruready

Seriously, not joking a 2 year old could take this apart and put it back together and it would work

But does this 2 year old have both of their eyes working correctly?

[Pilot135pd]

UPDATE :

Glad to report that I ran the engine and the alternator worked great. Thanks for the suggestions.

[Ruready]

Awesome, but curious how you are checking it? I awlways look for a volt increase to at least 27 at idle power after starting.

[Pilot135pd]

25.x with alternator off then 27.x with it on.