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I had installed a "dummy" voltage regulator, planning to switch to an alte=
rnator, and forgot to change the regulator back when I went back to my gene=
rator (they all look the same on the outside).=C2=A0 I switched the voltage=
regulators and my problem went away.=C2=A0 Sorry to bother you.
Jack
----- Forwarded Message ----- From: Jack Wheeler <jwheeler1947@yahoo.com=
>To: fot@autox.team.net <fot@autox.team.net>Sent: Thursday, July 2, 2026 at=
12:50:59 PM EDTSubject: Negative Ground TR-3A
My 1960 TR-3A was shipped from the factory with the battery positive termi=
nal as the ground.=C2=A0 When I restored the car many years ago, I switched=
it over to negative ground.=C2=A0 Someone had given me some instructions t=
hat I followed, and it seemed to work.=C2=A0 About 2 years ago, I replaced =
the battery and suspecting a charging problem, I also changed the generator=
and voltage regulator.=C2=A0 Since then, whenever I took the car on a long=
drive for a few days, the battery would run down.=C2=A0 I took my generato=
r to an old electrical shop and he tested it on a bench test and said it wa=
s charging just fine.
I can't remember if I had polarized the new generator and voltage regulator=
when I replaced them.=C2=A0 So, I polarized them again, using some instruc=
tions I got from the Roadster Factory.=C2=A0 Now the ignition switch and am=
p gauge are backwards.=C2=A0 When the key is in the off position, the ignit=
ion light comes on and the engine will start and run.=C2=A0 When the key is=
in the on position, there is nothing.=C2=A0 When I started the engine, the=
amp gauge went negative.
Anyone have any idea what I could have done to get this switched around?=C2=
=A0 And, therefore, what I need to do to switch it back?
Thanks for your help.
Jack Wheeler =20
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<html><head></head><body><div class=3D"ydp25f81245yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px=
;"><div></div>
<div dir=3D"ltr" data-setdir=3D"false">I had installed a "dummy" vo=
ltage regulator, planning to switch to an alternator, and forgot to change =
the regulator back when I went back to my generator (they all look the same=
on the outside). I switched the voltage regulators and my problem we=
nt away. Sorry to bother you.</div><div dir=3D"ltr" data-setdir=3D"fa=
lse"><br></div><div dir=3D"ltr" data-setdir=3D"false">Jack</div><div><br></=
div>
=20
</div><div id=3D"ydpe3aad60byahoo_quoted_3386352362" class=3D"ydpe3=
aad60byahoo_quoted">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
<div>----- Forwarded Message -----</div>
<div><b>From:</b> Jack Wheeler <jwheeler1947@yahoo.com&g=
t;</div><div><b>To:</b> fot@autox.team.net <fot@autox.team.net></div>=
<div><b>Sent:</b> Thursday, July 2, 2026 at 12:50:59 PM EDT</div><div><b>Su=
bject:</b> Negative Ground TR-3A</div><div><br></div>
=20
=20
<div><div dir=3D"ltr" data-setdir=3D"false">My 1960 TR-3A w=
as shipped from the factory with the battery positive terminal as the groun=
d. When I restored the car many years ago, I switched it over to nega=
tive ground. Someone had given me some instructions that I followed, =
and it seemed to work. About 2 years ago, I replaced the battery and =
suspecting a charging problem, I also changed the generator and voltage reg=
ulator. Since then, whenever I took the car on a long drive for a few=
days, the battery would run down. I took my generator to an old elec=
trical shop and he tested it on a bench test and said it was charging just =
fine.</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr=
" data-setdir=3D"false">I can't remember if I had polarized the new generat=
or and voltage regulator when I replaced them. So, I polarized them a=
gain, using some instructions I got from the Roadster Factory. Now th=
e ignition switch and amp gauge are backwards. When the key is in the=
off position, the ignition light comes on and the engine will start and ru=
n. When the key is in the on position, there is nothing. When I=
started the engine, the amp gauge went negative.</div><div dir=3D"ltr" dat=
a-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Anyone =
have any idea what I could have done to get this switched around? And=
, therefore, what I need to do to switch it back?</div><div dir=3D"ltr" dat=
a-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Thanks =
for your help.</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div d=
ir=3D"ltr" data-setdir=3D"false">Jack Wheeler</div></div>
</div>
</div></body></html>
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