Subject: [Fot] Coolant conundrum

From: Anthony Parker via Fot <[email-masked]>
Date: Sat, 23 Sep 2023 15:02:31 +0000

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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 c=
oolant 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 co=
olant shot everywhere.

No thermostat and I have confirmed three times that system is completely fu=
ll

Seems I have combustion gases getting into coolant and then bubbles eventua=
lly 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 b=
y two different trusted engine machinists.

Desperately trying to get to the RunOffs, Anthony.

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<body dir=3D"ltr">
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
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<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0">
<span style=3D"margin:0px" class=3D"ContentPasted0">I'm having cooling prob=
lems.</span></div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
Need help being convinced that I have to do what I don't want to do.</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
<br>
</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
Brand new short block, same old head, water pump, and radiator.<br>
<div dir=3D"ltr" style=3D"margin:0px"><br class=3D"ContentPasted0">
</div>
<div style=3D"margin:0px" class=3D"ContentPasted0">Over three trials, the e=
ngine will run fine and warm up with radiator hoses and radiator warming pr=
operly. Then the hoses and radiator will cool and coolant temp will spike t=
o 230+. Radiator cold with sky high
 coolant temps.</div>
<div dir=3D"ltr" style=3D"margin:0px"><br class=3D"ContentPasted0">
</div>
<div style=3D"margin:0px" class=3D"ContentPasted0">Two more clues, hoses se=
em to pressurize very quickly and when I opened the radiator cap this morni=
ng (after cooling all night) pressurized air and coolant shot everywhere.</=
div>
<div style=3D"margin:0px" class=3D"ContentPasted0"><br>
</div>
<div style=3D"margin:0px" class=3D"ContentPasted0"><span style=3D"display: =
inline !important; background-color: rgb(255, 255, 255);" class=3D"ContentP=
asted1">No thermostat and I have confirmed three times that system is compl=
etely full</span><br>
</div>
<div dir=3D"ltr" style=3D"margin:0px"><br class=3D"ContentPasted0">
</div>
<div style=3D"margin:0px" class=3D"ContentPasted0">Seems I have combustion =
gases getting into coolant and then bubbles eventually removing pump prime.=
</div>
<div dir=3D"ltr" style=3D"margin:0px"><br class=3D"ContentPasted0">
</div>
Don't know what else it could be.</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
<br>
</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
Given the apparent direction of the leak, is there any use in trying some &=
quot;stop leak&quot; product?</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
<br>
</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
Is it time to pull the head again to look for warping or gasket leak?</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
<br>
</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
I suppose it could be a cracked cylinder, but this block has been checked b=
y two different trusted engine machinists.</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
<br>
</div>
<div style=3D"font-size: 15px; font-family: &quot;Segoe UI&quot;, &quot;Seg=
oe UI Web (West European)&quot;, &quot;Segoe UI&quot;, -apple-system, Blink=
MacSystemFont, Roboto, &quot;Helvetica Neue&quot;, sans-serif; margin: 0px;=
 color: rgb(36, 36, 36); background-color: rgb(255, 255, 255);" class=3D"Co=
ntentPasted0 elementToProof">
Desperately trying to get to the RunOffs, Anthony.</div>
</div>
</body>
</html>

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