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I would start by doublechecking the wiring at the lamp holders and make sur=
e there are no stray wires touching ground where they shouldn't be.
Then check where the metal tabs that secure the wiring harness to the body =
and make sure the sharp edges aren't cutting into the insulation.=C2=A0 The=
factory put plastic sleeves over these tabs but they become lost quickly.
I don't know how robust these electronic flashers are but there is a standa=
rd to which automotive electronics are tested and expected to survive.=C2=
=A0 Something called load dump voltage surges.=C2=A0 This is where an elect=
rical load switches off and generates a large, typically negative-going vol=
tage spike.=C2=A0 This can be when an electric fan switches off.=C2=A0 The =
biggest load on a TR3 (or just about any car) is the starter motor.=C2=A0 T=
he starter and solenoid on a TR3 may generate a voltage spike that is destr=
oying the electronic flasher.=C2=A0 I would try an MOV (Metal Oxide Varisto=
r) across the the power input to the flasher and ground.=C2=A0 Something li=
ke this:https://www.digikey.com/en/products/detail/bourns-inc/MOV-10D270KTR=
/2407604
I also like to add a capacitor that will slow the rise time of the spike he=
lping the varistor do its work.=C2=A0 Something like this:https://www.digik=
ey.com/en/products/detail/kemet/R82DC3470AA60J/2839160=C2=A0
Dave=20
=20
On Sunday, May 11, 2025 at 03:39:32 PM CDT, rjray.architect@gmail.com <=
rjray.architect@gmail.com> wrote: =20
=20
On to the TR3A lights:
=C2=A0
I put LED in front driving/turn signal lights, and the rear brake lights an=
d rear turn signal lights.
It worked great for several years.
Eventually, nothing flashed, and the front driving/turn signal lights would=
sort of lightly glow/flicker all the time when the key was on. The rears m=
ay have done that also, but with the red lenses, I could not see anything i=
n the daylight hours.
I replace the electronic flasher unit, and everything worked for a few days=
. Then it was back to nothing lashed and the front light s sort of glowing =
again.
I assumed the electronic flasher unit =E2=80=9Cblew,=E2=80=9D and that some=
where in the system was a short. But with a new wiring harness, I thought t=
hat unlikely.
=C2=A0
Should I try replacing the front LED bulbs with incandescent?
As TR3 people know, it is a pain getting the lenses back on in the rubber h=
olders.
=C2=A0
Thanks.
=C2=A0
p.s. Greg is spot on about Randall. His advice here and on British Car Foru=
m, helped me a lot when I first bought my TR3 and was getting it back to dr=
iving condition.
=C2=A0
=C2=A0
=C2=A0
=C2=A0
From: Triumphs <triumphs-bounces@autox.team.net> On Behalf Of Greg Lemon
Sent: Sunday, May 11, 2025 12:06 PM
To: dave northrup <dave@ranteer.com>
Cc: triumphs@autox.team.net
Subject: Re: [TR] 1972 Triumph TR6 - blinker problem
=C2=A0
I believe I am running rear LEDs and front incandescents for my turn signal=
s too, as well as a LED for my blinker indicator in the dash (so I can see =
it blinking in the sun).
=C2=A0
They electronics all seem to play better together with a couple incandescen=
ts in the loop, and I can track what is going on on in front of me better t=
hen behind, so the brighter rear lights make sense.
=C2=A0
Will just add that Randall (TR3Driver) was a whiz at this stuff, and if you=
ever had an electrical problem he had a fix.
=C2=A0
Many years ago I had a turn signal problem.with.my Ford Ranger, the Ford Ra=
nger forum was no help whatsoever, Randall gave me a part number for a flas=
her I could get at the local car part shop, problem solved.
=C2=A0
Greg Lemon
TR250
=C2=A0
On Sun, May 11, 2025, 10:59=E2=80=AFAM dave northrup <dave@ranteer.com> wro=
te:
This makes no sense to me.=C2=A0 Apparently in the last few weeks I replace=
d the front bulbs with LEDs.=C2=A0 The rear already had them.
=C2=A0
Replacing the front bulbs with analog bulbs fixed the problem, and, as a bo=
nus, the green trafficator light is now working.=C2=A0 I haven=E2=80=99t se=
en that for years.
=C2=A0
Now the blinkers work as they should.=C2=A0=20
=C2=A0
=C2=A0
** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/a=
rchive
mail.com
** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/a=
rchive
sey@cs.com
=20
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<html><head></head><body><div class=3D"ydpf9b0c02eyahoo-style-wrap" style=
=3D"font-family:Arial, Helvetica, sans-serif;font-size:16px;"><div><div dir=
=3D"ltr" data-setdir=3D"false">I would start by doublechecking the wiring a=
t the lamp holders and make sure there are no stray wires touching ground w=
here they shouldn't be.</div><div dir=3D"ltr" data-setdir=3D"false"><br></d=
iv><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-s=
etdir=3D"false">Then check where the metal tabs that secure the wiring harn=
ess to the body and make sure the sharp edges aren't cutting into the insul=
ation. The factory put plastic sleeves over these tabs but they becom=
e lost quickly.</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div =
dir=3D"ltr" data-setdir=3D"false">I don't know how robust these electronic =
flashers are but there is a standard to which automotive electronics are te=
sted and expected to survive. Something called load dump voltage surg=
es. This is where an electrical load switches off and generates a lar=
ge, typically negative-going voltage spike. This can be when an elect=
ric fan switches off. The biggest load on a TR3 (or just about any ca=
r) is the starter motor. The starter and solenoid on a TR3 may genera=
te a voltage spike that is destroying the electronic flasher. I would=
try an MOV (Metal Oxide Varistor) across the the power input to the flashe=
r and ground. Something like this:</div><div dir=3D"ltr" data-setdir=
=3D"false"><a href=3D"https://www.digikey.com/en/products/detail/bourns-inc=
/MOV-10D270KTR/2407604" rel=3D"nofollow" target=3D"_blank">https://www.digi=
key.com/en/products/detail/bourns-inc/MOV-10D270KTR/2407604</a></div><div d=
ir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"=
false">I also like to add a capacitor that will slow the rise time of the s=
pike helping the varistor do its work. Something like this:</div><div=
dir=3D"ltr" data-setdir=3D"false"><a href=3D"https://www.digikey.com/en/pr=
oducts/detail/kemet/R82DC3470AA60J/2839160" rel=3D"nofollow" target=3D"_bla=
nk" style=3D"letter-spacing: -0.02em;">https://www.digikey.com/en/products/=
detail/kemet/R82DC3470AA60J/2839160</a></div><div dir=3D"ltr" data-setdir=
=3D"false"> </div><div><br></div><div class=3D"ydpf9b0c02esignature"><=
div style=3D"color: black; font-style: normal; font-size-adjust: none; font=
-weight: normal; font-stretch: normal; font-size: 12pt; line-height: normal=
; font-family: Arial, Helvetica, sans-serif;"><div style=3D"color: black; f=
ont-style: normal; font-size-adjust: none; font-weight: normal; font-stretc=
h: normal; font-size: 12pt; line-height: normal; font-family: Arial, Helvet=
ica, sans-serif;"><div><font size=3D"4">Dave <br></font></div><div><span st=
yle=3D"font-size:10.0pt;font-family:sans-serif;color:black;"><br></span></d=
iv><br></div></div></div></div>
<div><br></div><div><br></div>
=20
</div><div id=3D"ydp6dd68939yahoo_quoted_7640861453" class=3D"ydp6d=
d68939yahoo_quoted"><div class=3D"ydp6dd68939yahoo-style-wrap" style=3D"fon=
t-family:Arial, Helvetica, sans-serif;font-size:16px;">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
=20
<div class=3D"ydp6dd68939quoted-text-header">
On Sunday, May 11, 2025 at 03:39:32 PM CDT, rjray.a=
rchitect@gmail.com <rjray.architect@gmail.com> wrote:
</div>
</div><div style=3D"font-family:'Helvetica Neue', Helvetica=
, Arial, sans-serif;font-size:13px;color:#26282a;border-left: 1px solid #cc=
c;padding-left: 8px;margin: 0px 0px 0px 8px" class=3D"ydp6dd68939inline_rep=
ly_quote_container" data-split-quote-node=3D"true">
<div><br></div><div><br></div>
<div><div id=3D"ydp6dd68939yiv7948797309"><div><div class=
=3D"ydp6dd68939yiv7948797309WordSection1"><p class=3D"ydp6dd68939yiv7948797=
309MsoNormal"><span style=3D"font-size:11.0pt;font-family:sans-serif;">On t=
o the TR3A lights:</span></p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"=
><span style=3D"font-size:11.0pt;font-family:sans-serif;"> </span></p=
><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11=
.0pt;font-family:sans-serif;">I put LED in front driving/turn signal lights=
, and the rear brake lights and rear turn signal lights.</span></p><p class=
=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11.0pt;font=
-family:sans-serif;">It worked great for several years.</span></p><p class=
=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11.0pt;font=
-family:sans-serif;">Eventually, nothing flashed, and the front driving/tur=
n signal lights would sort of lightly glow/flicker all the time when the ke=
y was on. The rears may have done that also, but with the red lenses, I cou=
ld not see anything in the daylight hours.</span></p><p class=3D"ydp6dd6893=
9yiv7948797309MsoNormal"><span style=3D"font-size:11.0pt;font-family:sans-s=
erif;">I replace the electronic flasher unit, and everything worked for a f=
ew days. Then it was back to nothing lashed and the front light s sort of g=
lowing again.</span></p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><spa=
n style=3D"font-size:11.0pt;font-family:sans-serif;">I assumed the electron=
ic flasher unit =E2=80=9Cblew,=E2=80=9D and that somewhere in the system wa=
s a short. But with a new wiring harness, I thought that unlikely.</span></=
p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:1=
1.0pt;font-family:sans-serif;"> </span></p><p class=3D"ydp6dd68939yiv=
7948797309MsoNormal"><span style=3D"font-size:11.0pt;font-family:sans-serif=
;">Should I try replacing the front LED bulbs with incandescent?</span></p>=
<p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11.=
0pt;font-family:sans-serif;">As TR3 people know, it is a pain getting the l=
enses back on in the rubber holders.</span></p><p class=3D"ydp6dd68939yiv79=
48797309MsoNormal"><span style=3D"font-size:11.0pt;font-family:sans-serif;"=
> </span></p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span sty=
le=3D"font-size:11.0pt;font-family:sans-serif;">Thanks.</span></p><p class=
=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11.0pt;font=
-family:sans-serif;"> </span></p><p class=3D"ydp6dd68939yiv7948797309=
MsoNormal"><span style=3D"font-size:11.0pt;font-family:sans-serif;">p.s. Gr=
eg is spot on about Randall. His advice here and on British Car Forum, help=
ed me a lot when I first bought my TR3 and was getting it back to driving c=
ondition.</span></p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span st=
yle=3D"font-size:11.0pt;font-family:sans-serif;"> </span></p><p class=
=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11.0pt;font=
-family:sans-serif;"> </span></p><p class=3D"ydp6dd68939yiv7948797309=
MsoNormal"><span style=3D"font-size:11.0pt;font-family:sans-serif;"> =
</span></p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"fo=
nt-size:11.0pt;font-family:sans-serif;"> </span></p><div id=3D"ydp6dd=
68939yiv7948797309yqt92359" class=3D"ydp6dd68939yiv7948797309yqt7771856284"=
><div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in=
0in 0in;"><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><b><span style=3D=
"font-size:11.0pt;font-family:sans-serif;">From:</span></b><span style=3D"f=
ont-size:11.0pt;font-family:sans-serif;"> Triumphs <triumphs-bounces@aut=
ox.team.net> <b>On Behalf Of </b>Greg Lemon<br clear=3D"none"><b>Sent:</=
b> Sunday, May 11, 2025 12:06 PM<br clear=3D"none"><b>To:</b> dave northrup=
<dave@ranteer.com><br clear=3D"none"><b>Cc:</b> triumphs@autox.team.=
net<br clear=3D"none"><b>Subject:</b> Re: [TR] 1972 Triumph TR6 - blinker p=
roblem</span></p></div><p class=3D"ydp6dd68939yiv7948797309MsoNormal"> &nbs=
p;</p><div><p class=3D"ydp6dd68939yiv7948797309MsoNormal">I believe I am ru=
nning rear LEDs and front incandescents for my turn signals too, as well as=
a LED for my blinker indicator in the dash (so I can see it blinking in th=
e sun).</p><div><p class=3D"ydp6dd68939yiv7948797309MsoNormal"> </p><=
/div><div><p class=3D"ydp6dd68939yiv7948797309MsoNormal">They electronics a=
ll seem to play better together with a couple incandescents in the loop, an=
d I can track what is going on on in front of me better then behind, so the=
brighter rear lights make sense.</p></div><div><p class=3D"ydp6dd68939yiv7=
948797309MsoNormal"> </p></div><div><p class=3D"ydp6dd68939yiv7948797=
309MsoNormal">Will just add that Randall (TR3Driver) was a whiz at this stu=
ff, and if you ever had an electrical problem he had a fix.</p></div><div><=
p class=3D"ydp6dd68939yiv7948797309MsoNormal"> </p></div><div><p clas=
s=3D"ydp6dd68939yiv7948797309MsoNormal">Many years ago I had a turn signal =
<a shape=3D"rect" href=3D"http://problem.with.my"; rel=3D"nofollow" target=
=3D"_blank">problem.with.my</a> Ford Ranger, the Ford Ranger forum was no h=
elp whatsoever, Randall gave me a part number for a flasher I could get at =
the local car part shop, problem solved.</p></div><div><p class=3D"ydp6dd68=
939yiv7948797309MsoNormal"> </p></div><div><p class=3D"ydp6dd68939yiv=
7948797309MsoNormal">Greg Lemon</p></div><div><p class=3D"ydp6dd68939yiv794=
8797309MsoNormal">TR250</p></div></div><p class=3D"ydp6dd68939yiv7948797309=
MsoNormal"> </p><div><div><p class=3D"ydp6dd68939yiv7948797309MsoNorm=
al">On Sun, May 11, 2025, 10:59<span style=3D"font-family:sans-serif;">=E2=
=80=AF</span>AM dave northrup <<a shape=3D"rect" href=3D"mailto:dave@ran=
teer.com" rel=3D"nofollow" target=3D"_blank">dave@ranteer.com</a>> wrote=
:</p></div><blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt=
;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in;"><div><div><=
p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11.0=
pt;">This makes no sense to me. Apparently in the last few weeks I re=
placed the front bulbs with LEDs. The rear already had them.</span></=
p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:1=
1.0pt;"> </span></p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><sp=
an style=3D"font-size:11.0pt;">Replacing the front bulbs with analog bulbs =
fixed the problem, and, as a bonus, the green trafficator light is now work=
ing. I haven=E2=80=99t seen that for years.</span></p><p class=3D"ydp=
6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11.0pt;"> </s=
pan></p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-=
size:11.0pt;">Now the blinkers work as they should. </span></p><p cla=
ss=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=3D"font-size:11.0pt;">=
</span></p><p class=3D"ydp6dd68939yiv7948797309MsoNormal"><span style=
=3D"font-size:11.0pt;"> </span></p></div></div><p class=3D"ydp6dd68939=
yiv7948797309MsoNormal">** <a shape=3D"rect" href=3D"mailto:triumphs@autox.=
team.net" rel=3D"nofollow" target=3D"_blank">triumphs@autox.team.net</a> **=
<br clear=3D"none"><br clear=3D"none">Donate: <a shape=3D"rect" href=3D"htt=
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.net/mailman/options/triumphs/grglmn@gmail.com</a></p></blockquote></div></=
div></div></div></div><div class=3D"ydp6dd68939yqt7771856284" id=3D"ydp6dd6=
8939yqt54183">** <a shape=3D"rect" href=3D"mailto:triumphs@autox.team.net"; =
rel=3D"nofollow" target=3D"_blank">triumphs@autox.team.net</a> **<br clear=
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eam.net/donate.html" rel=3D"nofollow" target=3D"_blank">http://www.team.net=
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