<div dir="ltr">Some other ideas:<div><br></div><div>I've seen claims that too much coolant hurts cooling - with some people saying 50/50 is too much, suggesting closer to 20/80.</div><div><br></div><div>How comfortable are you with your water pump?</div><div><br></div><div>Is your fan belt at the right tension? </div><div><br></div><div>I don't know the Ford V8 internals. Is there a chance an incorrect head gasket or a incorrectly fitted head gasket is blocking a water hole? Or causing water to leak and not get to where it needs to go?</div><div><br></div><div>What about the block? Alpine blocks often have a lot of casting sand in them which interferes with cooling. Anything possible there?</div><div><br></div><div>Finally, have you read the cooling article on <a href="http://tigersunited.com">tigersunited.com</a>? More than a shroud is generally needed to block off all the holes and places that air goes around the radiator rather than through. Though I'd think we electric fans, that issue might be less - although still inefficient to need fans on when blocking the holes would help.</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Apr 20, 2018 at 8:57 PM, Tom Witt via Tigers <span dir="ltr"><<a href="mailto:tigers@autox.team.net" target="_blank">tigers@autox.team.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div dir="ltr">
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Calibri';COLOR:#000000">
<div><font face="Garamond">You say you have, “... No expansion tank ...,”. Is it
possible you have an air lock? Recently I has one of my older cars on a
slight forward facing downward slope. I opened the radiator cap and all seemed
well. The next day I drove about 40 miles on a very cool morning without issue.
Then, suddenly going up a hill I noticed a whisper of steam and saw the temp
gage was pegged on hot. I was completely baffled as to how this occurred so
rapidly and assumed either I had blown the radiator or a hose apart. After
blowing steam at the side of the road for about 30+ minutes and observing
nothing to have caused the rapid lose of coolant, I trickled water very slowly
back into car. The gallon I had barely met the need.</font></div>
<div><font face="Garamond"></font> </div>
<div><font face="Garamond">The rest of the journey (about 10 mile) was incident
free as well as the trip home with similar hills to climb and a now warmer
temperature. My best guess is when I observed the coolant level the day before
the slight slope gave a false measure of sufficient coolant. And it likely also
didn’t show the heater core was not filled, but rather trapping air. Being a
cool morning I had turned the heater on and as I ascended the hill the coolant
present in the radiator flowed backwards, filling in the heater core and other
space previously filled by air. Now the radiator was significantly low and the
car overheated.</font></div>
<div><font face="Garamond"></font> </div>
<div><font face="Garamond">When I refilled the car after overheating it was facing
up hill and any trapped air was removed thus no issues afterwards. So, can
you “burp” the system perhaps having it inclined upwards when you
do?</font></div>
<div style="FONT-SIZE:small;TEXT-DECORATION:none;FONT-FAMILY:"Calibri";FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;DISPLAY:inline">
<div style="FONT:10pt tahoma">
<div> </div>
<div style="BACKGROUND:#f5f5f5">
<div><b>From:</b> <a title="tigers@autox.team.net" href="mailto:tigers@autox.team.net" target="_blank">Joel Martin via Tigers</a> </div>
<div><b>Sent:</b> Thursday, April 19, 2018 7:51 AM</div>
<div><b>To:</b> <a title="tigers@autox.team.net" href="mailto:tigers@autox.team.net" target="_blank">Tiger List Serve</a> </div>
<div><b>Subject:</b> [Tigers] Overheating</div></div></div>
<div> </div></div>
<div style="FONT-SIZE:small;TEXT-DECORATION:none;FONT-FAMILY:"Calibri";FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;DISPLAY:inline">
<div style="FONT-SIZE:16px;FONT-FAMILY:garamond,new york,times,serif;COLOR:#000;BACKGROUND-COLOR:#fff">
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34170"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34171"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34172">Well after 8 years and a gazillion
dollars, I am officially completely discouraged.<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34173">
</span>I have the hardtop yet to put together, fit the new Robbins top which
after stretching in the sun, still is about 2 inches from being even close to
fit and wheel alignment.<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34174"> </span>Toneau cover and top boot covers look
good though.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34175"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34176">I have had my radiator, not an
original tiger radiator, re-cored, rebuilt 289 engine – done by machine shop
with .30 pistons, hipo heads, arp bolts, new values, oil pump, gaskets etc with
new SS water pump, nothing left untouched.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34177"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34178">Generator rebuilt, voltage
regulator replaced multiple times, rebuilt AMP gauge – this worked for a few
months.<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34179"> </span>Replaced generator with alternator, last
week, 100 amp American made – older CAT 1 piece bracket and a Jaeger volt gauge
– looking good on this front.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34180"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34181">Overheating defined as greater
than 210 at idle or running.<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34182"> </span>No expansion tank. Temporary manual
temperature gauge installed until sort things out, if ever – did not feel could
trust the electric sending unit or rebuilt gauge at this point. Things
tried:</div>
<ol id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34183" style="MARGIN-TOP:0in" type="1">
<li id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34184">New copper core, I
believe, not aluminum – totally taken advantage of by this individual here, so
no confidence in job performed.
</li><li id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34185">16 pound radiator cap –
have used the SS 7 pound one as well
</li><li id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34186">160 degree thermostat
and 180 as well – 160 currently installed
</li><li id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34187">14” 6 blade plastic fan
</li><li id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34188">Fan spacer made to move
fan with 1” of radiator fins.
</li><li id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34189">Custom made fan shroud
</li><li id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34190">Spacer in upper
radiator hose to slow down flow – have put this in and out multiple times, no
real difference – currently installed
</li><li id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34191">2 – 10” pusher electric
fans with relay and in line 30 amp fuse, last thing I did, no help.</li></ol>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34192"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34193">Oh and the SS heater control valve
lasted 80 miles.<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34194"> </span>Moss Motors valve lasted about a week,
the second Moss one leaking after about 10 minutes from cold start up.<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34195">
</span>All 3 diaphragms split and blew coolant all over.<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34196">
</span>Received credit and currently have plugged both hoses going in and out of
heater valve so I could leave valve in place and look correct till overheating
and better parts solution presents itself.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34197"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34198">Here how things went from cold
start up yesterday – about 72 degrees outside.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34199">Starts on the first turn of the
key.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34200">Let idle until electric choke
brings to 950 rpm.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34201">Off we go, about 4 miles of
running at 190.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34202">Stop at stop light – turn on
electric fans, temp up to 200 really quickly.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34203">Running at 60 mph for another 10
miles at 200 degrees</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34204">Pull into gas station that is
suppose to have ethenal free gas for new weed eater – not there 30 seconds –
temp up to 210 with electric fans on.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34205">Temp stays at 210 the next 12
miles or so – tried fans on and then off – no difference.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34206">Next stop light, about 1.5
minutes, temp goes to 220, fans on</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34207">Stays at 220 until I can get
home.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34208">Blowing coolant, slight coming
into house – not sure for how long.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34209">Fans on, hood up – heat soak up to
230 before coming back down.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34210"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34211">My last observations:<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34212">
</span>temp goes up amazingly fast when stopped at idle and does not come down
with electric fans running or driving.<span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34213">
</span>At one point, the temp used to drop when driving back to 195/200, not
sure when this stopped.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34214"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34215">I have had 3 different mechanics
look at this with me to this point, no more recommendations from them unless try
an aluminum radiator.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34216"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34217">I am completely stumped at this
point and beyond disappointment and discouraged.</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34218">So, team Tiger owners – ideas,
recommendations or just put the car cover on it and leave it for the next
person?</div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34219"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34220">Joel Martin<br></div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34221"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34222"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34223"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34224"><span id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34225"></span> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34226"> </div>
<div id="m_802883377566815025yui_3_16_0_ym19_1_1524138695718_34050"> </div></div>
<p>
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