Alternator Wiring?

[steve s]

Originally Posted by MikeK

... but the average Joe who gets a rebuilt, or "reman" or even generic "all new" doesn't know he's been gyped.

Thanks, again, Mike, for explaining all of that. Kind of depressing.

So, what do you recommend a guy do if he wants to be sure he's getting a quality alternator with spike protection and functional sensing lug, etc? Just go to a trusted auto electric shop and ask them to make you one, or are they all using cheap repro parts too?

Is it just silly to worry about sensing control in a Model A, considering the relatively short wiring runs involved?

Steve

[MikeK]

Originally Posted by steve s

Thanks, again, Mike, for explaining all of that. Kind of depressing.

So, what do you recommend a guy do if he wants to be sure he's getting a quality alternator with spike protection and functional sensing lug, etc? Just go to a trusted auto electric shop and ask them to make you one, or are they all using cheap repro parts too?

Is it just silly to worry about sensing control in a Model A, considering the relatively short wiring runs involved?

Steve

Steve, the 10SI knock-off regulators were a problem all the way back in the late 70's. I don't think Delco makes them anymore for an alternator design that is already a 40+ year old dinosaur. My answer is a tiny 40A remote sensing Denso. Here's a picture. Much newer, more efficient and reliable technology. Unfortunately the rebuilders and K.O. parts guys have junked them up, too. You can even get totally rotten one wire rebuild versions! This one was a new take-off from a Kubota tractor. It is about 4 1/2" in diameter, way smaller than a Delco 10/12SI. The buyer needed a bigger alternator, probably for an air-conditioned cab with a 1000 watt sound system so he didn't have to listen to the corn grow. I made a new, small B belt pulley and painted it black.

Of course, on my other A, (Late '31 40B Dlx) I have the correct generator with an internal band regulator and it WORKS PERFECTLY.

[30Tudor]

Steve and Mike - thanks for your discussion on this topic. It sounds like my wiring mods to try and set up an exciter circuit were for not and there is really nothing I can do at this point. Anyway - my alternator works well once it wakes up. I still like the look of the generator and plan to purchase a EVR for mine in the next while.

Thanks again. Mike H