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<div>Re: Tiger overheating.</div><div><br></div><div>You state that your fan is one inch from the radiator and that you are not using a fan shroud.. IMO without a shroud and that much space between fan and radiator, the air is not being pulled through the radiator at idle. Its just churning engine compartment air. All cars use shrouds to pull air through the whole radiator. Pusher fans in front of radiators only cool the area directly in front of the fan, the bigger the better, but they do help. Put a propper shroud in place and you may have solved your problem.</div><div>Good luck,</div><div><br></div><div>Trevor Nemeth</div><div><br></div>
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On Tuesday, June 18, 2019, 11:01:26 AM PDT, tigers-request@autox.team.net <tigers-request@autox.team.net> wrote:
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<div><div dir="ltr">Send Tigers mailing list submissions to<br></div><div dir="ltr"> <a href="mailto:tigers@autox.team.net" rel="nofollow" target="_blank">tigers@autox.team.net</a><br></div><div dir="ltr"><br></div><div dir="ltr">To subscribe or unsubscribe via the World Wide Web, visit<br></div><div dir="ltr"> <a href="http://autox.team.net/mailman/listinfo/tigers" rel="nofollow" target="_blank">http://autox.team.net/mailman/listinfo/tigers</a><br></div><div dir="ltr">or, via email, send a message with subject or body 'help' to<br></div><div dir="ltr"> <a href="mailto:tigers-request@autox.team.net" rel="nofollow" target="_blank">tigers-request@autox.team.net</a><br></div><div dir="ltr"><br></div><div dir="ltr">You can reach the person managing the list at<br></div><div dir="ltr"> <a href="mailto:tigers-owner@autox.team.net" rel="nofollow" target="_blank">tigers-owner@autox.team.net</a><br></div><div dir="ltr"><br></div><div dir="ltr">When replying, please edit your Subject line so it is more specific<br></div><div dir="ltr">than "Re: Contents of Tigers digest..."<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">Today's Topics:<br></div><div dir="ltr"><br></div><div dir="ltr"> 1. Re: Tiger Overheating ? Shotgun Approach (Tom Witt)<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">----------------------------------------------------------------------<br></div><div dir="ltr"><br></div><div dir="ltr">Message: 1<br></div><div dir="ltr">Date: Tue, 18 Jun 2019 10:40:05 -0700<br></div><div dir="ltr">From: "Tom Witt" <<a href="mailto:atwittsend@verizon.net" rel="nofollow" target="_blank">atwittsend@verizon.net</a>><br></div><div dir="ltr">To: "Tiger List Serve" <<a href="mailto:tigers@autox.team.net" rel="nofollow" target="_blank">tigers@autox.team.net</a>><br></div><div dir="ltr">Subject: Re: [Tigers] Tiger Overheating ? Shotgun Approach<br></div><div dir="ltr">Message-ID: <<a href="mailto:50A67CB0E5D94FFFB40A0D27374F46EE@user1PC" rel="nofollow" target="_blank">50A67CB0E5D94FFFB40A0D27374F46EE@user1PC</a>><br></div><div dir="ltr">Content-Type: text/plain; charset="utf-8"<br></div><div dir="ltr"><br></div><div dir="ltr">I know this has been a long running problem for you. And as time moves on I can?t remember what has or hasn?t been said. Aside from the obvious (clogged radiator/engine, blades eroded off water pumps, air pockets etc.) there have been other causes of high temperature readings:<br></div><div dir="ltr"><br></div><div dir="ltr">1. There might not actually be a problem with the cooling. Rather the voltage regulator for the temp gauge may be defective and causing a higher than actual reading.<br></div><div dir="ltr"><br></div><div dir="ltr">2. The lower radiator hose collapses. This typically happens as the rpm?s increase (so not an ?at idle? issue) the lower hose sucks in and pinches flow. A stainless steel spring set internal to the hose (many source this from a lawn sprinkler) prevents the collapse.<br></div><div dir="ltr"><br></div><div dir="ltr">The blocking plates and other means of preventing hot air recirculation are helpful. I?ve seen a flat sheet of aluminum between the lower section of the grill area and the radiator. My understanding of the air dam is that it is more effective at speed. I was told it generates a negative air pressure to draw air from the engine compartment. I truly believe a shroud would be very helpful. Otherwise to some extent you are simply churning hot air already under the hood. A well fitting shroud would ensure air is drawn externally. As noted others have found an electric pusher fan helpful.<br></div><div dir="ltr"><br></div><div dir="ltr">In this day and age of the GoPro camera I think it would be interesting to to do the old school yarn application and observe what is actually going on under the hood, under the car, and the external areas such as the horn openings and proposed air dam areas etc. A few well placed homemade man-o-meters might be informative too.<br></div><div dir="ltr"><br></div><div dir="ltr">Then there are the arguments as to whether a high flow water pump pulls hot coolant out of the engine faster (good) or pushes it too fast through the radiator (bad). Is coolant good because it raises the boiling point, or bad because it is less efficient than straight water. There are the people with a stock cooling system (and sometimes performance enhancements to the engine) that claim they never have a heat issue in a hot climate and those in cooler climates that have stock engines and every cooling enhancement known to Tigerdom and they constantly have issues.<br></div><div dir="ltr"><br></div><div dir="ltr">In the end I hope you are successful and enjoy a the summer driving your now running cool Tiger.<br></div><div dir="ltr"><br></div><div dir="ltr">From: Joel Martin via Tigers <br></div><div dir="ltr">Sent: Tuesday, June 18, 2019 9:04 AM<br></div><div dir="ltr">To: Tiger List Serve <br></div><div dir="ltr">Subject: [Tigers] Tiger Overheating ? Shotgun Approach<br></div><div dir="ltr"><br></div><div dir="ltr">After about a year of struggling with overheating at idle with the hood down, I took drastic steps. I have been driving the car during the last year only on back roads with no chance of traffic lights. <br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"> 1.. Purchased and installed SS gloss black radiator overflow tank. <br></div><div dir="ltr"> 2.. Purchased and installed overflow tank straps from Alexander Washick <a href="mailto:alw6464@gmail.com" rel="nofollow" target="_blank">alw6464@gmail.com</a> which are powder coated. <br></div><div dir="ltr"> 3.. Purchased and installed undersize water pump pulley from Robert Straghan <<a href="mailto:rgstraghan@yahoo.ca" rel="nofollow" target="_blank">rgstraghan@yahoo.ca</a>> scuffed, primed and painted semi gloss black <br></div><div dir="ltr"> 4.. Purchased and installed horn hole block plates from Don Lutjen <<a href="mailto:dlutjen55@gmail.com" rel="nofollow" target="_blank">dlutjen55@gmail.com</a>> scuffed, primed and painted semi gloss black. <br></div><div dir="ltr"> 5.. Purchased and installed new taller Tiger aluminum cross flow side tank radiator from Griffin Radiator. <br></div><div dir="ltr"> 6.. Purchased and installed new Flow Kooler water pump BRA-1680 painted Ford dark blue to match engine replacing SS water pump, pressed hub to line up. <br></div><div dir="ltr"> 7.. Modified the mechanical fan spacer so that front of fan is 1? from radiator. <br></div><div dir="ltr"> 8.. Mechanical fan remains Flex-a-lite 14? nylon 6 blade fan. <br></div><div dir="ltr"> 9.. Purchased and installed new SS lower radiator and overflow to radiator hoses. <br></div><div dir="ltr"> 10.. New top radiator hose from local source as SS hose would not fit taller radiator. <br></div><div dir="ltr"> 11.. New fan belt. <br></div><div dir="ltr"> 12.. Purchased and refurbished original Tiger fan shroud which would not fit as I did not want to cut a original shroud top mounting bracket to fit my taller radiator. Stripped, primed and painted used shroud semi gloss black ? sitting on shelf. <br></div><div dir="ltr"> 13.. Installed 160 degree thermostat.<br></div><div dir="ltr">So at this point I do not have a fan shroud ? unless make up a custom. Other changes could make is front air dam and block front cross member to bottom of radiator spacing but for now I am going to see how things play out this summer.<br></div><div dir="ltr"><br></div><div dir="ltr">Results as follows:<br></div><div dir="ltr"><br></div><div dir="ltr">Cold start with 86 degree ambient outside temperature ? at idle with hood closed, car in sun.<br></div><div dir="ltr"><br></div><div dir="ltr">5 Minutes engine temperature 174 degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">9 Minutes engine temperature 180 degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">12 Minutes engine temperature 190 degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">14 Minutes engine temperature 195 degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">16 Minutes engine temperature 200 degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">Run the motor at 1500 rpm?s for 1minute temperature drops to 196 degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">Run the motor at 2000 rpm?s for another 1minute temperature drops to 194 degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">Turn motor off and in a total of 27 minutes from startup - heat soak is 208 degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">All this is recorded from temporary mechanical temperature gauge located under dash.<br></div><div dir="ltr"><br></div><div dir="ltr">The car temperature at any speed is at 174 degrees regardless of the outside ambient temperature from 50?s to mid 90?s.<br></div><div dir="ltr"><br></div><div dir="ltr">Whew, maybe at last can enjoy car with a couple of things still outstanding to be able to drive it out of town for any distance. The Tiger?s first major outing was at the Sandhills Motoring Festival held in Pinehurst NC last month in May ? you can get a glimpse of the cars at: <a href="https://www.thepilot.com/gallery/concours-in-the-village/collection_d49fdacc-8091-11e9-86df-2b8021a08259.html " rel="nofollow" target="_blank">https://www.thepilot.com/gallery/concours-in-the-village/collection_d49fdacc-8091-11e9-86df-2b8021a08259.html </a> You might have to copy and paste link into your browser.<br></div><div dir="ltr"><br></div><div dir="ltr">Thank you all for putting up with all my inane questions and comments over the years. I am sure there will be more.<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">Regards<br></div><div dir="ltr"><br></div><div dir="ltr">Joel Martin<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">--------------------------------------------------------------------------------<br></div><div dir="ltr">_______________________________________________<br></div><div dir="ltr"><br></div><div dir="ltr"><a href="mailto:tigers@autox.team.net" rel="nofollow" target="_blank">tigers@autox.team.net</a><br></div><div dir="ltr"><br></div><div dir="ltr">Donate: <a href="http://www.team.net/donate.html" rel="nofollow" target="_blank">http://www.team.net/donate.html</a><br></div><div dir="ltr">Archive: <a href="http://www.team.net/pipermail/tigers " rel="nofollow" target="_blank">http://www.team.net/pipermail/tigers </a><a href="http://autox.team.net/archive" rel="nofollow" target="_blank">http://autox.team.net/archive</a><br></div><div dir="ltr"><br></div><div dir="ltr">Unsubscribe: <a href="http://autox.team.net/mailman/options/tigers/atwittsend@verizon.net" rel="nofollow" target="_blank">http://autox.team.net/mailman/options/tigers/atwittsend@verizon.net</a><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">---<br></div><div dir="ltr">This email has been checked for viruses by AVG.<br></div><div dir="ltr"><a href="https://www.avg.com" rel="nofollow" target="_blank">https://www.avg.com</a><br></div><div dir="ltr">-------------- next part --------------<br></div><div dir="ltr">An HTML attachment was scrubbed...<br></div><div dir="ltr">URL: <<a href="http://autox.team.net/pipermail/tigers/attachments/20190618/8c38f53d/attachment-0001.html" rel="nofollow" target="_blank">http://autox.team.net/pipermail/tigers/attachments/20190618/8c38f53d/attachment-0001.html</a>><br></div><div dir="ltr"><br></div><div dir="ltr">------------------------------<br></div><div dir="ltr"><br></div><div dir="ltr">Subject: Digest Footer<br></div><div dir="ltr"><br></div><div dir="ltr">_______________________________________________<br></div><div dir="ltr">Tigers mailing list<br></div><div dir="ltr"><a href="mailto:Tigers@autox.team.net" rel="nofollow" target="_blank">Tigers@autox.team.net</a><br></div><div dir="ltr"><a href="http://autox.team.net/mailman/listinfo/tigers" rel="nofollow" target="_blank">http://autox.team.net/mailman/listinfo/tigers</a><br></div><div dir="ltr"><br></div><div dir="ltr">Donate: <a href="http://www.team.net/donate.html" rel="nofollow" target="_blank">http://www.team.net/donate.html</a><br></div><div dir="ltr">Archive: <a href="http://www.team.net/pipermail/tigers " rel="nofollow" target="_blank">http://www.team.net/pipermail/tigers </a><a href="http://autox.team.net/archive" rel="nofollow" target="_blank">http://autox.team.net/archive</a><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">------------------------------<br></div><div dir="ltr"><br></div><div dir="ltr">End of Tigers Digest, Vol 11, Issue 181<br></div><div dir="ltr">***************************************<br></div></div>
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