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Re: [Oletrucks] 1950 3600 gas gauge

To: "'MIQ MILLMAN'" <miq@bigllama.com>, "'smokey'" <smokey@railops.com>
Subject: Re: [Oletrucks] 1950 3600 gas gauge
From: "Bill Hanlon" <bill_hanlon@comcast.net>
Date: Sat, 18 Oct 2025 21:47:49 -0500
Cc: 'oletrucks' <oletrucks@autox.team.net>
Delivered-to: mharc@autox.team.net
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Miq=E2=80=99s hints are valid, but it should top out at 30 ohms, not 90.

=20

From: Oletrucks <oletrucks-bounces@autox.team.net> On Behalf Of MIQ =
MILLMAN
Sent: Saturday, October 18, 2025 5:23 PM
To: smokey <smokey@railops.com>
Cc: oletrucks <oletrucks@autox.team.net>
Subject: Re: [Oletrucks] 1950 3600 gas gauge

=20

Simple possible solution:  poor grounding connection on the fuel sending =
unit, and the back of the instrument cluster.

=20

slightly less simple:  check the contacts on the resistor board (which =
if stock is right there in the cabin fuel tank with you), and check the =
ohms on the unit by pulling it out and moving the float.  It should top =
out around 90 ohms.

=20

Maybe just replace the fuel sending unit as a whole?  I can't imagine =
that it is more than $50.

=20

  --Miq

=20

=20

=20

On Sat, Oct 18, 2025 at 9:57=E2=80=AFAM smokey <smokey@railops.com =

For 25 years my gas gauge has worked just fine.  Now the needle shakes =
all the time, whether the motor is running or not.  As long as the key =
is on.  Any thoughts?

=20

Thanks!

Smokey Culver, League City, TX

=20

=20

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style=3D'word-wrap:break-word'><div class=3DWordSection1><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'>Miq=E2=80=99s hints are =
valid, but it should top out at 30 ohms, not 90.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'><o:p>&nbsp;</o:p></span></p><d=
iv style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span><=
/b><span style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'> =
Oletrucks &lt;oletrucks-bounces@autox.team.net&gt; <b>On Behalf Of =
</b>MIQ MILLMAN<br><b>Sent:</b> Saturday, October 18, 2025 5:23 =
PM<br><b>To:</b> smokey &lt;smokey@railops.com&gt;<br><b>Cc:</b> =
oletrucks &lt;oletrucks@autox.team.net&gt;<br><b>Subject:</b> Re: =
[Oletrucks] 1950 3600 gas gauge<o:p></o:p></span></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>Simple =
possible&nbsp;solution:&nbsp; poor grounding connection on the fuel =
sending unit, and the back of the instrument =
cluster.<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>slightly less simple:&nbsp; check the contacts on the =
resistor board (which if stock is right there in the cabin fuel tank =
with you), and check the ohms on the unit by pulling it out and moving =
the float.&nbsp; It should top out around 90 =
ohms.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Maybe just replace the fuel sending unit as a =
whole?&nbsp; I can't imagine that it is more&nbsp;than =
$50.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>&nbsp; --Miq<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p class=3DMsoNormal>On =
Sat, Oct 18, 2025 at 9:57<span =
style=3D'font-family:"Arial",sans-serif'>=E2=80=AF</span>AM smokey =
&lt;<a href=3D"mailto:smokey@railops.com";>smokey@railops.com</a>&gt; =
wrote:<o:p></o:p></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 =
id=3D"m_2953520354205031081edo-message"><div><div><p =
class=3DMsoNormal>For 25 years my gas gauge has worked just fine.&nbsp; =
Now the needle shakes all the time, whether the motor is running or =
not.&nbsp; As long as the key is on.&nbsp; Any =
thoughts?<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Thanks!<o:p></o:p></p></div><div><p =
class=3DMsoNormal>Smokey Culver, League City, =
TX<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div></div><p =
class=3DMsoNormal>_______________________________________________<br><br>=
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