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Discussion Starter · #1 ·
The voltage regulator on my Wisconsin S-12D is over charging the battery.
The regulator is the 2 coil type that controls voltage cut-out and current
cut-out. It’s new but it doesn’t work well. Unfortunately I didn’t know
too much about these things and ended up buying a non adjustable
made in China regulator. I wanted to replace it with an adjustable Delco
voltage regulator, so I did some Googling. I came across a few old car
forums where the guys were talking about using solid state regulators to
replace these old electro-mechanical regulators.

Does anyone have any experience with this type of upgrade. The posts
I was reading mentioned a Wells #715 but it also said they are no longer
available.
 

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aegt
I have a 1977 FMC Bolens Equipment Seminar Manual that has about 10 pages on servicing and adjusting the delco regulators.
I planned on posting the entire 86 pages of the manual, but if you need I'll do these pages first.
 

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What was the old regulator doing? If it was doing the same thing
it could be the battery. I have had that happen. I burned out 4 regulators on my boat that were overcharging. Turned out to be the battery. I never thought it was the battery because it always
started the boat but it had some kind of internal problem.
Rod
 

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aegt

This is probably info you already have but just in case you need it...

Bolens 1250 Wisconsin S12D 281960 (67-69)

Voltage Regulator:
Bolens # 1719181
Delco Remy # 119165E

Starter/Generator:
Bolens # 1716169
Delco Remy # 1101875 (68-69) 1101970 (67) note the bolens # doesn't change but the delco does
 

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Discussion Starter · #5 ·
sixchows…

Thanks for the pages you posted in the 1977 equipment seminar manual post.
They are MUCH better at detailing the procedure for adjusting the Delco
voltage regulator, than anything I have. My problem is the regulator I am
using has no adjusting screws (not a Delco). I was going to just go out and
get a Delco electro-mechanical regulator when I came across the stuff on
the old car guys raving about the solid state replacements. I just wanted to
see if anyone here had any experience with the SS reg’s and possibly use a
SS instead of just swapping out electro-mechanicals.

Rod…

I trashed all the old electrical parts that originally came with the tractor
when I did the restore. I don’t know if the old regulator worked or not.
The battery is new, it takes and holds a good charge from my electric
battery charger.
 
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