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If you changed to negative ground you need to have a negative ground voltag=
e stabilizer.
Get Outlook for Android<https://aka.ms/ghei36>
________________________________
From: Triumphs <triumphs-bounces@autox.team.net> on behalf of Jim Henningse=
n <trguy75@gmail.com>
Sent: Sunday, August 18, 2019 11:40:23 AM
To: 'Randall' <tr3driver@ca.rr.com>; 'Triumphs' <triumphs@autox.team.net>
Subject: Re: [TR] Fuel gauge troubles
Thanks all for the feedback. I=92m heading out this afternoon for some tin=
kering. I didn=92t mention this since I didn=92t think related, but the te=
mp gauge is also not working, and didn=92t realize it might be the voltage =
stabilizer unit. Hmmmnn.
Jim Henningsen
From: Randall <tr3driver@ca.rr.com>
Sent: Saturday, August 17, 2019 8:25 PM
To: Jim Henningsen <trguy75@gmail.com>; 'Triumphs' <triumphs@autox.team.net=
>
Subject: RE: [TR] Fuel gauge troubles
Quick and dirty test : Remove the wire from the sender, turn the key on, an=
d ground the wire while watching the gauge. If the gauge starts to climb t=
owards full, then the gauge & wiring to it are probably OK. Probably best =
to not leave it this way for long, but a few minutes won=92t hurt.
My next suspect (especially since it worked before restoration) would be th=
e grounding for the sender. IIRC the TR4 grounds the same as TR3, meaning =
not very well. I like to add a ground wire from the stud on the sender to =
one of the tank mounting bolts.
Use an ohmmeter to check the sender. I don=92t recall the exact numbers of=
fhand, but it=92s something like 100 ohms empty and 10 ohms full. If it se=
ems to work backwards (low resistance empty and high resistance full), you=
=92ve got a TR3 sender instead of TR4.
Also worth checking the temp gauge if the first test above doesn=92t work. =
Do the same thing, pull the wire off the sender and ground it. If temp ga=
uge doesn=92t respond either, it=92s probably the voltage stabilizer. Seem=
s like maybe it=92s mounted over in the passenger footwell on a TR4, but ho=
nestly I don=92t recall for sure.
-- Randall
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KMcsROY4AqQ%3D&reserved=3D0> for Windows 10
Sent: Saturday, August 17, 2019 6:54 PM
Subject: [TR] Fuel gauge troubles
Help, I'm calling the TR bat phone again. Switching projects to get my car
ready for AACC southeastern fall nationals on Mobile AL. 1962 TR4 CT5212LO=
.
Fuel gauge worked prior to restoration but not after. Car is switched to
neg ground. Orig fuel sender float was sunk in tank. Removed it and
verified there is gas in it. Hoping there is a way to rebuild it since ori=
g
part. Put in a new sending unit from TRF this morning and added 7 gallons
of gas and it still doesn't work but float rises. The needle moved ever so
slightly right above E then dropped back down with ignition on. I even use=
d
a coat hanger to manually raise the float in the gas tank to "full" with
ignition on but needle still didn't work. Ignition in "On" position, but
not running.
My thoughts.
1. Bad gauge?
2. Wires reversed on fuel gauge from resto impacting since it is neg not
original positive ground. Running generator that has been polarized to neg
ground.
3. connections at new sending unit not secure. Neg is to ground and positiv=
e
to pos on sending unit
4. new sender bad
Any thoughts on the possible easy fix before going through the list
tomorrow. Also, if anyone is looking for a nice 73 Stag with hardtop,
manual tran, that has been owned by a TR owner of 60+ tyears and avid VTR
member, it is for sale in Tally. I am trying to help the family find a hom=
e
for it. Email me offline if you would like pics and contact info.
Many thanks,
Jim Henningsen
Ocala, FL
60 TR3A
61 TR3A
62 TR4
75 TR6
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ly: sans-serif; font-size: 11pt; color: black; ">
If you changed to negative ground you need to have a negative ground voltag=
e stabilizer.<br>
<br>
</div>
<div dir=3D"auto" style=3D"direction: ltr; margin: 0; padding: 0; font-fami=
ly: sans-serif; font-size: 11pt; color: black; ">
<span id=3D"OutlookSignature">
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Get <a href=3D"https://aka.ms/ghei36";>Outlook for Android</a></div>
</span><br>
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<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Triumphs <triumphs=
-bounces@autox.team.net> on behalf of Jim Henningsen <trguy75@gmail.c=
om><br>
<b>Sent:</b> Sunday, August 18, 2019 11:40:23 AM<br>
<b>To:</b> 'Randall' <tr3driver@ca.rr.com>; 'Triumphs' <triumphs@a=
utox.team.net><br>
<b>Subject:</b> Re: [TR] Fuel gauge troubles</font>
<div> </div>
</div>
<div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Thanks all for the feedback. I=92m heading out=
this afternoon for some tinkering. I didn=92t mention this since I d=
idn=92t think related, but the temp gauge is also not working, and didn=92t=
realize it might be the voltage stabilizer unit. Hmmmnn.<o:p></o:p><=
/p>
<p class=3D"MsoNormal">Jim Henningsen <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Randall <tr3driver@ca.rr.com> <br=
>
<b>Sent:</b> Saturday, August 17, 2019 8:25 PM<br>
<b>To:</b> Jim Henningsen <trguy75@gmail.com>; 'Triumphs' <triumph=
s@autox.team.net><br>
<b>Subject:</b> RE: [TR] Fuel gauge troubles<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Quick and dirty test : Remove the wire from the send=
er, turn the key on, and ground the wire while watching the gauge. If=
the gauge starts to climb towards full, then the gauge & wiring to it =
are probably OK. Probably best to not leave
it this way for long, but a few minutes won=92t hurt.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">My next suspect (especially since it worked before r=
estoration) would be the grounding for the sender. IIRC the TR4 groun=
ds the same as TR3, meaning not very well. I like to add a ground wir=
e from the stud on the sender to one of the
tank mounting bolts.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Use an ohmmeter to check the sender. I don=92t=
recall the exact numbers offhand, but it=92s something like 100 ohms empty=
and 10 ohms full. If it seems to work backwards (low resistance empt=
y and high resistance full), you=92ve got a TR3 sender
instead of TR4.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Also worth checking the temp gauge if the first test=
above doesn=92t work. Do the same thing, pull the wire off the sende=
r and ground it. If temp gauge doesn=92t respond either, it=92s proba=
bly the voltage stabilizer. Seems like maybe it=92s
mounted over in the passenger footwell on a TR4, but honestly I don=92t re=
call for sure.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">-- Randall<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Sent from <a href=3D"https://nam01.safelinks.protect=
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Mail</a> for Windows 10<o:p></o:p></p>
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<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From: </b><a href=3D"mailto:trguy75@gmail.com";>Ji=
m Henningsen</a><br>
<b>Sent: </b>Saturday, August 17, 2019 6:54 PM<br>
<b>To: </b><a href=3D"mailto:triumphs@autox.team.net";>'Triumphs'</a><br>
<b>Subject: </b>[TR] Fuel gauge troubles<o:p></o:p></p>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Help, I'm calling the TR bat phone again. Swit=
ching projects to get my car<o:p></o:p></p>
<p class=3D"MsoNormal">ready for AACC southeastern fall nationals on Mobile=
AL. 1962 TR4 CT5212LO.<o:p></o:p></p>
<p class=3D"MsoNormal">Fuel gauge worked prior to restoration but not after=
. Car is switched to<o:p></o:p></p>
<p class=3D"MsoNormal">neg ground. Orig fuel sender float was sunk in=
tank. Removed it and<o:p></o:p></p>
<p class=3D"MsoNormal">verified there is gas in it. Hoping there is a=
way to rebuild it since orig<o:p></o:p></p>
<p class=3D"MsoNormal">part. Put in a new sending unit from TRF this =
morning and added 7 gallons<o:p></o:p></p>
<p class=3D"MsoNormal">of gas and it still doesn't work but float rises.&nb=
sp; The needle moved ever so<o:p></o:p></p>
<p class=3D"MsoNormal">slightly right above E then dropped back down with i=
gnition on. I even used<o:p></o:p></p>
<p class=3D"MsoNormal">a coat hanger to manually raise the float in the gas=
tank to "full" with<o:p></o:p></p>
<p class=3D"MsoNormal">ignition on but needle still didn't work. Igni=
tion in "On" position, but<o:p></o:p></p>
<p class=3D"MsoNormal">not running. <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">My thoughts.<o:p></o:p></p>
<p class=3D"MsoNormal">1. Bad gauge?<o:p></o:p></p>
<p class=3D"MsoNormal">2. Wires reversed on fuel gauge from resto impacting=
since it is neg not<o:p></o:p></p>
<p class=3D"MsoNormal">original positive ground. Running generator th=
at has been polarized to neg<o:p></o:p></p>
<p class=3D"MsoNormal">ground. <o:p></o:p></p>
<p class=3D"MsoNormal">3. connections at new sending unit not secure. Neg i=
s to ground and positive<o:p></o:p></p>
<p class=3D"MsoNormal">to pos on sending unit<o:p></o:p></p>
<p class=3D"MsoNormal">4. new sender bad<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Any thoughts on the possible easy fix before going t=
hrough the list<o:p></o:p></p>
<p class=3D"MsoNormal">tomorrow. Also, if anyone is looking for a nic=
e 73 Stag with hardtop,<o:p></o:p></p>
<p class=3D"MsoNormal">manual tran, that has been owned by a TR owner of 60=
+ tyears and avid VTR<o:p></o:p></p>
<p class=3D"MsoNormal">member, it is for sale in Tally. I am trying t=
o help the family find a home<o:p></o:p></p>
<p class=3D"MsoNormal">for it. Email me offline if you would like pic=
s and contact info.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Many thanks,<o:p></o:p></p>
<p class=3D"MsoNormal">Jim Henningsen<o:p></o:p></p>
<p class=3D"MsoNormal">Ocala, FL<o:p></o:p></p>
<p class=3D"MsoNormal">60 TR3A<o:p></o:p></p>
<p class=3D"MsoNormal">61 TR3A<o:p></o:p></p>
<p class=3D"MsoNormal">62 TR4<o:p></o:p></p>
<p class=3D"MsoNormal">75 TR6<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">** <a href=3D"mailto:triumphs@autox.team.net";>triump=
hs@autox.team.net</a> **<o:p></o:p></p>
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P125NC9BZj9kTB4zDTGNSQsVWGEQoqa+k24Qf8eAtCrkkPXvGq8AN+PchFj5kX9MqHN=
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http://autox.team.net/mailman/options/triumphs/tr3driver@ca.rr.com</a><o:p>=
</o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
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** triumphs@autox.team.net **
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