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Re: [Tigers] Temp Gauge Reading High?

To: "'Ron Fraser'" <rfraser@bluefrog.com>
Subject: Re: [Tigers] Temp Gauge Reading High?
From: <gharlowe@comcast.net>
Date: Fri, 10 Jul 2020 17:30:22 -0400
Cc: 'LIST TIGER' <tigers@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: tigers@autox.team.net
References: <000c01d656ec$c09eee00$41dcca00$@comcast.net> <CAE3_YO9QX5TcdgrQOnfAJfYsuMFsapR6d1E1BqjCPHeB3vnRGQ@mail.gmail.com> <000801d656f4$78d6a470$6a83ed50$@comcast.net> <002a01d656fe$0f594980$2e0bdc80$@bluefrog.com>
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Thanks to Ron and others for the recommendations.   Joe Parlanti recommende=
d checking the voltage stabilizer=E2=80=A6I hadn=E2=80=99t really observed =
significant fuel gauge problems, so I didn=E2=80=99t think that was the pro=
blem.  Out of frustration, I checked under the dash and noticed the sheet m=
etal mounting screw for the stabilizer was loose.   I disconnected the batt=
ery (a fried wiring harness taught me THAT lesson!), tightened up the mount=
ing screw, and after restarting, the engine temps dropped about 30 degrees =
at the gauge.   I should package and sell that magic screw driver!   

 

Seems to be working well now and running between 175 and 195=E2=80=A6Thanks=
 again to all,  - G.

 

 

 

From: Ron Fraser <rfraser@bluefrog.com> 
Sent: Friday, July 10, 2020 5:07 PM
To: gharlowe@comcast.net
Cc: 'LIST TIGER' <tigers@autox.team.net>
Subject: RE: [Tigers] Temp Gauge Reading High?

 

Graham

                One adage to follow is =E2=80=93 if it=E2=80=99s not puking=
 coolant, it=E2=80=99s not overheating.

 

You should always double check the temp of the engine to the gauge with an =
IR thermometer or other means =E2=80=93 most gauges are off some.

Seems to me I read an article about someone putting a potentiometer or a sm=
all resistor in line with the temp gauge to make it read correctly.

 

You might want to do a system flush.  Make sure you read the Flush bottle d=
irections completely for this.

I used Prestone Flush on my 1988 Mustang recently which stated for HD flush=
 run the engine for 3 hours or more which I did by driving a couple hundred=
 miles over 3 days.

 

On my Tiger I put an overflow bottle just in front of the header tank.   It=
 will keep the coolant with your Tiger and not splashing on your front tire=
=2E

 

I also recommend that you flush and back flush the heater core.  The last t=
ime I did that all kinds of sediment came out.

I need to do that again this year.

 

Ron Fraser

 

Sent: Friday, July 10, 2020 3:58 PM
Subject: Re: [Tigers] Temp Gauge Reading High?

 

 

 

I should also add that in the interest of cooling, the horn holes are block=
ed off, I have a thermo-switched pusher fan, undersized fan pulley, afterma=
rket Derale fan, and an aluminum radiator from Dale A.   I=E2=80=99m very f=
amiliar with the articles and tech tips available to keep a Tiger cool that=
 our great community has made available.    =E2=80=93 G.

 

 

 

 


Sent: Friday, July 10, 2020 3:37 PM
Subject: Re: [Tigers] Temp Gauge Reading High?

 

Graham, Is this a new problem or has it always been like that?

 

Tom Parker - tkparker1941@gmail..

 

On Fri, Jul 10, 2020 at 3:03 PM gharlowe--- via Tigers <tigers@autox.team.n=

Listers =E2=80=93 

 

I=E2=80=99ve been troubleshooting what I thought was a hot-running motor.  =
 It=E2=80=99s mid-summer in the mid-Atlantic, and I have a triple-black Tig=
er, so not the ideal scenario to run cool.   The car=E2=80=99s been running=
 between 210 and 220 at 50 mph on level roads.  It doesn=E2=80=99t get a lo=
t of miles, so I thought the radiator might need a flush.  I changed the th=
ermostat (180deg) at the same time.   Same temps.  I pulled out an infrared=
 thermometer and with the car idling, the temp gauge was indicating ~ 215 w=
hile the infrared thermometer was reading 183 when pointed at the water out=
let and F4B manifold.   I ordered a new temp sending unit from Rick =E2=80=
=93 any other suggestions?   

 

Thanks as always, 

 

Graham Harlowe

B382001466

 

 

 

 


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vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Thanks to =
Ron and others for the recommendations.=C2=A0=C2=A0 Joe Parlanti =
recommended checking the voltage stabilizer=E2=80=A6I hadn=E2=80=99t =
really observed significant fuel gauge problems, so I didn=E2=80=99t =
think that was the problem. =C2=A0Out of frustration, I checked under =
the dash and noticed the sheet metal mounting screw for the stabilizer =
was loose.=C2=A0=C2=A0 I disconnected the battery (a fried wiring =
harness taught me THAT lesson!), tightened up the mounting screw, and =
after restarting, the engine temps dropped about 30 degrees at the =
gauge.=C2=A0=C2=A0 I should package and sell that magic screw =
driver!=C2=A0=C2=A0 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Seems to be =
working well now and running between 175 and 195=E2=80=A6Thanks again to =
all,=C2=A0 - G.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Ron Fraser =
&lt;rfraser@bluefrog.com&gt; <br><b>Sent:</b> Friday, July 10, 2020 5:07 =
PM<br><b>To:</b> gharlowe@comcast.net<br><b>Cc:</b> 'LIST TIGER' =
&lt;tigers@autox.team.net&gt;<br><b>Subject:</b> RE: [Tigers] Temp Gauge =
Reading High?<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Graham<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; One adage to follow is =E2=80=93 if =
it=E2=80=99s not puking coolant, it=E2=80=99s not =
overheating.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>You should always double check the temp of the engine =
to the gauge with an IR thermometer or other means =E2=80=93 most gauges =
are off some.<o:p></o:p></p><p class=3DMsoNormal>Seems to me I read an =
article about someone putting a potentiometer or a small resistor in =
line with the temp gauge to make it read correctly.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>You might =
want to do a system flush.&nbsp; Make sure you read the Flush bottle =
directions completely for this.<o:p></o:p></p><p class=3DMsoNormal>I =
used Prestone Flush on my 1988 Mustang recently which stated for HD =
flush run the engine for 3 hours or more which I did by driving a couple =
hundred miles over 3 days.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>On my Tiger =
I put an overflow bottle just in front of the header tank.&nbsp;&nbsp; =
It will keep the coolant with your Tiger and not splashing on your front =
tire.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>I also recommend that you flush and back flush the =
heater core.&nbsp; The last time I did that all kinds of sediment came =
out.<o:p></o:p></p><p class=3DMsoNormal>I need to do that again this =
year.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Ron Fraser<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Tigers &lt;<a =
href=3D"mailto:tigers-bounces@autox.team.net";>tigers-bounces@autox.team.n=
et</a>&gt; <b>On Behalf Of </b><a =
href=3D"mailto:gharlowe@comcast.net";>gharlowe@comcast.net</a><br><b>Sent:=
</b> Friday, July 10, 2020 3:58 PM<br><b>To:</b> 'Tom Parker' &lt;<a =
href=3D"mailto:tkparker1941@gmail.com";>tkparker1941@gmail.com</a>&gt;<br>=
<b>Cc:</b> 'LIST TIGER' &lt;<a =
href=3D"mailto:tigers@autox.team.net";>tigers@autox.team.net</a>&gt;<br><b=
>Subject:</b> Re: [Tigers] Temp Gauge Reading =
High?<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>I should =
also add that in the interest of cooling, the horn holes are blocked =
off, I have a thermo-switched pusher fan, undersized fan pulley, =
aftermarket Derale fan, and an aluminum radiator from Dale =
A.&nbsp;&nbsp; I=E2=80=99m very familiar with the articles and tech tips =
available to keep a Tiger cool that our great community has made =
available.&nbsp;&nbsp;&nbsp; =E2=80=93 G.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Tom Parker &lt;<a =
href=3D"mailto:tkparker1941@gmail.com";>tkparker1941@gmail.com</a>&gt; =
<br><b>Sent:</b> Friday, July 10, 2020 3:37 PM<br><b>To:</b> Graham =
Harlowe &lt;<a =
href=3D"mailto:gharlowe@comcast.net";>gharlowe@comcast.net</a>&gt;<br><b>C=
c:</b> LIST TIGER &lt;<a =
href=3D"mailto:tigers@autox.team.net";>tigers@autox.team.net</a>&gt;<br><b=
>Subject:</b> Re: [Tigers] Temp Gauge Reading =
High?<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>Graham, =
Is this a new problem or has it always been like =
that?<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Tom Parker - =
tkparker1941@gmail..<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p class=3DMsoNormal>On =
Fri, Jul 10, 2020 at 3:03 PM gharlowe--- via Tigers &lt;<a =
href=3D"mailto:tigers@autox.team.net";>tigers@autox.team.net</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-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Listers =
=E2=80=93 <o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I=E2=80=99ve=
 been troubleshooting what I thought was a hot-running =
motor.&nbsp;&nbsp; It=E2=80=99s mid-summer in the mid-Atlantic, and I =
have a triple-black Tiger, so not the ideal scenario to run cool.&nbsp; =
&nbsp;The car=E2=80=99s been running between 210 and 220 at 50 mph on =
level roads.&nbsp; It doesn=E2=80=99t get a lot of miles, so I thought =
the radiator might need a flush.&nbsp; I changed the thermostat (180deg) =
at the same time. &nbsp;&nbsp;Same temps.&nbsp; I pulled out an infrared =
thermometer and with the car idling, the temp gauge was indicating ~ 215 =
while the infrared thermometer was reading 183 when pointed at the water =
outlet and F4B manifold.&nbsp;&nbsp; I ordered a new temp sending unit =
from Rick =E2=80=93 any other suggestions?&nbsp;&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks as =
always, <o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Graham =
Harlowe<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>B382001466<o=
:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1=
1.4pt'>&nbsp;<o:p></o:p></p></div></div></blockquote></div><div =
id=3DDAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2><p =
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