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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Graham<o:p></o:p></p><p class=MsoNormal> One adage to follow is – if it’s not puking coolant, it’s not overheating.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>You should always double check the temp of the engine to the gauge with an IR thermometer or other means – most gauges are off some.<o:p></o:p></p><p class=MsoNormal>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=MsoNormal><o:p> </o:p></p><p class=MsoNormal>You might want to do a system flush. Make sure you read the Flush bottle directions completely for this.<o:p></o:p></p><p class=MsoNormal>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=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I also recommend that you flush and back flush the heater core. The last time I did that all kinds of sediment came out.<o:p></o:p></p><p class=MsoNormal>I need to do that again this year.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ron Fraser<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Tigers <tigers-bounces@autox.team.net> <b>On Behalf Of </b>gharlowe@comcast.net<br><b>Sent:</b> Friday, July 10, 2020 3:58 PM<br><b>To:</b> 'Tom Parker' <tkparker1941@gmail.com><br><b>Cc:</b> 'LIST TIGER' <tigers@autox.team.net><br><b>Subject:</b> Re: [Tigers] Temp Gauge Reading High?<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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. I’m very familiar with the articles and tech tips available to keep a Tiger cool that our great community has made available. – G.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Tom Parker <<a href="mailto:tkparker1941@gmail.com">tkparker1941@gmail.com</a>> <br><b>Sent:</b> Friday, July 10, 2020 3:37 PM<br><b>To:</b> Graham Harlowe <<a href="mailto:gharlowe@comcast.net">gharlowe@comcast.net</a>><br><b>Cc:</b> LIST TIGER <<a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a>><br><b>Subject:</b> Re: [Tigers] Temp Gauge Reading High?<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Graham, Is this a new problem or has it always been like that?<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Tom Parker - tkparker1941@gmail..<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Fri, Jul 10, 2020 at 3:03 PM gharlowe--- via Tigers <<a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a>> wrote:<o:p></o:p></p></div><blockquote style='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=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Listers – <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I’ve been troubleshooting what I thought was a hot-running motor. It’s mid-summer in the mid-Atlantic, and I have a triple-black Tiger, so not the ideal scenario to run cool. The car’s been running between 210 and 220 at 50 mph on level roads. It doesn’t get a lot of miles, so I thought the radiator might need a flush. I changed the thermostat (180deg) at the same time. Same temps. 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. I ordered a new temp sending unit from Rick – any other suggestions? <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks as always, <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Graham Harlowe<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>B382001466<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:11.4pt'> <o:p></o:p></p></div></div></blockquote></div><div id=DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=1 cellpadding=0 style='border:none;border-top:solid #D3D4DE 1.0pt'><tr><td width=55 style='width:41.25pt;border:none;padding:9.75pt .75pt .75pt .75pt'><p class=MsoNormal><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon" target="_blank"><span style='text-decoration:none'><img border=0 width=46 height=29 style='width:.4791in;height:.302in' id="_x0000_i1025" src="https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif"></span></a><o:p></o:p></p></td><td width=470 style='width:352.5pt;border:none;padding:9.0pt .75pt .75pt .75pt'><p class=MsoNormal style='line-height:13.5pt'><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#41424E'>Virus-free. </span><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link" target="_blank"><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#4453EA'>www.avast.com</span></a><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#41424E'> <o:p></o:p></span></p></td></tr></table><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>