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You don't say what kind of car. I had a similar issue in my TR-4,
changed head gasket 3 times and then discovered I had a crack in the
head in the combustion chamber.
Sure sounds like a leak from combustion chamber into cooling system from
the description. Temperature spikes after pushing out water is a
classic symptom, the rapid pressurization is a classic symptom.
Regards, Tony Drews
On 9/23/2023 10:02 AM, Anthony Parker via Fot wrote:
> I'm having cooling problems.
> Need help being convinced that I have to do what I don't want to do.
>
> Brand new short block, same old head, water pump, and radiator.
>
> Over three trials, the engine will run fine and warm up with radiator
> hoses and radiator warming properly. Then the hoses and radiator will
> cool and coolant temp will spike to 230+. Radiator cold with sky high
> coolant temps.
>
> Two more clues, hoses seem to pressurize very quickly and when I
> opened the radiator cap this morning (after cooling all night)
> pressurized air and coolant shot everywhere.
>
> No thermostat and I have confirmed three times that system is
> completely full
>
> Seems I have combustion gases getting into coolant and then bubbles
> eventually removing pump prime.
>
> Don't know what else it could be.
>
> Given the apparent direction of the leak, is there any use in trying
> some "stop leak" product?
>
> Is it time to pull the head again to look for warping or gasket leak?
>
> I suppose it could be a cracked cylinder, but this block has been
> checked by two different trusted engine machinists.
>
> Desperately trying to get to the RunOffs, Anthony.
>
> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
> Donate:http://www.team.net/donate.html
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>
>
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<p>You don't say what kind of car. I had a similar issue in my
TR-4, changed head gasket 3 times and then discovered I had a
crack in the head in the combustion chamber.<br>
</p>
<p><br>
</p>
<p>Sure sounds like a leak from combustion chamber into cooling
system from the description. Temperature spikes after pushing out
water is a classic symptom, the rapid pressurization is a classic
symptom.<br>
</p>
<p><br>
</p>
<p>Regards, Tony Drews<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 9/23/2023 10:02 AM, Anthony Parker
via Fot wrote:<br>
</div>
<blockquote type="cite"
cite="mid:SN7PR19MB75013E9D59BB7BAEBFE7C922D7FEA@SN7PR19MB7501.namprd19.prod.outlook.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<style type="text/css" style="display:none;">P
{margin-top:0;margin-bottom:0;}</style>
<div style="font-family: Calibri, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0">
<span style="margin:0px" class="ContentPasted0">I'm having
cooling problems.</span></div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
Need help being convinced that I have to do what I don't want
to do.</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
<br>
</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
Brand new short block, same old head, water pump, and
radiator.<br>
<div dir="ltr" style="margin:0px"><br class="ContentPasted0">
</div>
<div style="margin:0px" class="ContentPasted0">Over three
trials, the engine will run fine and warm up with radiator
hoses and radiator warming properly. Then the hoses and
radiator will cool and coolant temp will spike to 230+.
Radiator cold with sky high coolant temps.</div>
<div dir="ltr" style="margin:0px"><br class="ContentPasted0">
</div>
<div style="margin:0px" class="ContentPasted0">Two more clues,
hoses seem to pressurize very quickly and when I opened the
radiator cap this morning (after cooling all night)
pressurized air and coolant shot everywhere.</div>
<div style="margin:0px" class="ContentPasted0"><br>
</div>
<div style="margin:0px" class="ContentPasted0"><span
style="display: inline !important; background-color:
rgb(255, 255, 255);" class="ContentPasted1">No thermostat
and I have confirmed three times that system is completely
full</span><br>
</div>
<div dir="ltr" style="margin:0px"><br class="ContentPasted0">
</div>
<div style="margin:0px" class="ContentPasted0">Seems I have
combustion gases getting into coolant and then bubbles
eventually removing pump prime.</div>
<div dir="ltr" style="margin:0px"><br class="ContentPasted0">
</div>
Don't know what else it could be.</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
<br>
</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
Given the apparent direction of the leak, is there any use in
trying some "stop leak" product?</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
<br>
</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
Is it time to pull the head again to look for warping or
gasket leak?</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
<br>
</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
I suppose it could be a cracked cylinder, but this block has
been checked by two different trusted engine machinists.</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
<br>
</div>
<div style="font-size: 15px; font-family: "Segoe UI",
"Segoe UI Web (West European)", "Segoe
UI", -apple-system, BlinkMacSystemFont, Roboto,
"Helvetica Neue", sans-serif; margin: 0px; color:
rgb(36, 36, 36); background-color: rgb(255, 255, 255);"
class="ContentPasted0 elementToProof">
Desperately trying to get to the RunOffs, Anthony.</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre"
wrap="">_______________________________________________
<a class="moz-txt-link-abbreviated"
href="mailto:fot@autox.team.net";>fot@autox.team.net</a>
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href="http://www.fot-racing.com";>http://www.fot-racing.com</a>
Archive: <a class="moz-txt-link-freetext"
href="http://autox.team.net/archive";>http://autox.team.net/archive</a> <a
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</pre>
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