<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Had a closer look. There seem to be more like pin holes than cracks, so maybe some corrosion got in there. I’m going to try K-Seal, and if that doesn’t do it, keep an eye on it. <div><br></div><div>Thanks for all your feedback and help!<br><br><div dir="ltr">-john</div><div dir="ltr"><br><blockquote type="cite">On Feb 8, 2021, at 5:33 AM, fubog1 via Fot <fot@autox.team.net> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<div> <font size="2">If that's a static leak, a pressure test would likely confirm your suspicions.</font></div>
<div><font size="2">I checked a cut-up head that I have, there's a good bit of meat around the plug hole but if there's heavy corrosion in the water jacket, that could be the culprit.</font></div>
<div><font size="2">Glen</font><br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black"><font size="2">-----Original Message-----<br>
From: John Linney via Fot <fot@autox.team.net><br>
To: Fot <fot@autox.team.net><br>
Sent: Mon, Feb 8, 2021 12:10 am<br>
Subject: [Fot] Cylinder head head scratcher.<br>
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<div><font class="yiv1318649121" color="#000000"><span style="" class="yiv1318649121">I’m wondering if anyone has seen anything like this in the attached photo. I found some coolant pooled around the number 4 spark plug on my TR4 head. I took this photo about 10 minutes after cleaning it up. Stone cold engine. It appears I’ve got coolant seeping through the head at that point. The crack is not in the threads as I had feared. Logic tells me this may not become a critical crack, but I don’t know the topology of those passages well enough to be certain. Might I soon be in search of a new head, or is this repairable? Could it be a crack or is it corrosion? The head part number is 511695. Would love to know what you all think.</span></font>
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