<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Jack</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">I've been running their gasket in my TR4 (89mm) for 3-4 years, am very happy with it. I installed it dry</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">jim<br><br>Fat-thumbed from my iPhone</div><div><br>On Nov 6, 2015, at 2:13 PM, Jack Wheeler <<a href="mailto:jwheeler1947@yahoo.com">jwheeler1947@yahoo.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1446816007195_26397">Does anyone have any experience using Cometic head gaskets with the TR-3/4 engines? I have a slightly modified (10:1 compression with a cam) engine in my street TR-3. I built the engine about 2-3 years ago, and it runs great. However, it has always used water and eventually over heats, especially on real hot days, which we get a lot of in North Carolina. I have run a test on it, and the engine definitely has a compression leak.</div><div id="yui_3_16_0_1_1446816007195_26694"><br></div><div id="yui_3_16_0_1_1446816007195_26695">So, I removed the head and inspected the gasket. It is the stock copper gasket. There is no obvious indication of a leak around the gasket. I checked the liner protrusion and all were within spec (.003" - .005"). I have always used Gaskacinch sealant, and have never had one leak before.</div><div id="yui_3_16_0_1_1446816007195_26696"><br></div><div id="yui_3_16_0_1_1446816007195_26697" dir="ltr">A friend of mine, who builds a lot of American engines (racing and otherwise) suggested I look into a Cometic head gasket. They are supposed to seal better than a copper gasket, though I don't know why. Sure enough, I looked up their web site and they have a gasket listed for the TR-4 engine (also one for the TR-6). My only concern is that it is listed as 88MM bore. I am using a new 87MM piston and liner set.</div><div id="yui_3_16_0_1_1446816007195_26698" dir="ltr"><br></div><div id="yui_3_16_0_1_1446816007195_26699" dir="ltr">If anyone has had any experience with these gaskets on the TR-3/4 engines, I would really appreciate any feedback, both positive and negative. Thanks.</div><div id="yui_3_16_0_1_1446816007195_26721" dir="ltr"><br></div><div id="yui_3_16_0_1_1446816007195_26722" dir="ltr">Jack Wheeler<br></div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span><a href="mailto:fot@autox.team.net">fot@autox.team.net</a></span><br><span></span><br><span><a href="http://www.fot-racing.com">http://www.fot-racing.com</a></span><br><span></span><br><span>Donate: <a href="http://www.team.net/donate.html">http://www.team.net/donate.html</a></span><br><span>Archive: <a href="http://www.team.net/archive">http://www.team.net/archive</a></span><br><span>Forums: <a href="http://www.team.net/forums">http://www.team.net/forums</a></span><br><span>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/fot/jhassall@gmail.com">http://autox.team.net/mailman/options/fot/jhassall@gmail.com</a></span><br><span></span><br><span></span><br></div></blockquote></body></html>