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Re: [Fot] Cometic Head Gaskets

To: Jack Wheeler <jwheeler1947@yahoo.com>
Subject: Re: [Fot] Cometic Head Gaskets
From: "J.C. Hassall" <jhassall@gmail.com>
Date: Fri, 6 Nov 2015 15:10:51 -0500
Cc: "fot@autox.team.net" <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <1792568844.891688.1446837237794.JavaMail.yahoo.ref@mail.yahoo.com> <1792568844.891688.1446837237794.JavaMail.yahoo@mail.yahoo.com>
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Jack

I've been running their gasket in my TR4 (89mm) for 3-4 years, am very happy=
 with it. I installed it dry

jim

Fat-thumbed from my iPhone

> On Nov 6, 2015, at 2:13 PM, Jack Wheeler <jwheeler1947@yahoo.com> wrote:
>=20
> 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 i=
n 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 o=
n 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.
>=20
> So, I removed the head and inspected the gasket.  It is the stock copper g=
asket.  There is no obvious indication of a leak around the gasket.  I check=
ed the liner protrusion and all were within spec (.003" - .005").  I have al=
ways used Gaskacinch sealant, and have never had one leak before.
>=20
> A friend of mine, who builds a lot of American engines (racing and otherwi=
se) suggested I look into a Cometic head gasket.  They are supposed to seal b=
etter than a copper gasket, though I don't know why.  Sure enough, I looked u=
p 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 us=
ing a new 87MM piston and liner set.
>=20
> 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=
.
>=20
> Jack Wheeler
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
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> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/jhassall@gma=
il.com
>=20
>=20

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>Jack</div><div id=3D"AppleMailSignatur=
e"><br></div><div id=3D"AppleMailSignature">I've been running their gasket i=
n my TR4 (89mm) for 3-4 years, am very happy with it. I installed it dry</di=
v><div id=3D"AppleMailSignature"><br></div><div id=3D"AppleMailSignature">ji=
m<br><br>Fat-thumbed from my iPhone</div><div><br>On Nov 6, 2015, at 2:13 PM=
, Jack Wheeler &lt;<a href=3D"mailto:jwheeler1947@yahoo.com";>jwheeler1947@ya=
hoo.com</a>&gt; wrote:<br><br></div><blockquote type=3D"cite"><div><div styl=
e=3D"color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica=
 Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id=3D=
"yui_3_16_0_1_1446816007195_26397">Does anyone have any experience using Com=
etic head gaskets with the TR-3/4 engines?&nbsp; I have a slightly modified (=
10:1 compression with a cam) engine in my street TR-3.&nbsp; I built the eng=
ine about 2-3 years ago, and it runs great.&nbsp; However, it has always use=
d water and eventually over heats, especially on real hot days, which we get=
 a lot of in North Carolina.&nbsp; I have run a test on it, and the engine d=
efinitely has a compression leak.</div><div id=3D"yui_3_16_0_1_1446816007195=
_26694"><br></div><div id=3D"yui_3_16_0_1_1446816007195_26695">So, I removed=
 the head and inspected the gasket.&nbsp; It is the stock copper gasket.&nbs=
p; There is no obvious indication of a leak around the gasket.&nbsp; I check=
ed the liner protrusion and all were within spec (.003" - .005").&nbsp; I ha=
ve always used Gaskacinch sealant, and have never had one leak before.</div>=
<div id=3D"yui_3_16_0_1_1446816007195_26696"><br></div><div id=3D"yui_3_16_0=
_1_1446816007195_26697" dir=3D"ltr">A friend of mine, who builds a lot of Am=
erican engines (racing and otherwise) suggested I look into a Cometic head g=
asket.&nbsp; They are supposed to seal better than a copper gasket, though I=
 don't know why.&nbsp; 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).&nbsp; My only c=
oncern is that it is listed as 88MM bore.&nbsp; I am using a new 87MM piston=
 and liner set.</div><div id=3D"yui_3_16_0_1_1446816007195_26698" dir=3D"ltr=
"><br></div><div id=3D"yui_3_16_0_1_1446816007195_26699" dir=3D"ltr">If anyo=
ne has had any experience with these gaskets on the TR-3/4 engines, I would r=
eally appreciate any feedback, both positive and negative.&nbsp; Thanks.</di=
v><div id=3D"yui_3_16_0_1_1446816007195_26721" dir=3D"ltr"><br></div><div id=
=3D"yui_3_16_0_1_1446816007195_26722" dir=3D"ltr">Jack Wheeler<br></div></di=
v></div></blockquote><blockquote type=3D"cite"><div><span>__________________=
_____________________________</span><br><span><a href=3D"mailto:fot@autox.te=
am.net">fot@autox.team.net</a></span><br><span></span><br><span><a href=3D"h=
ttp://www.fot-racing.com">http://www.fot-racing.com</a></span><br><span></sp=
an><br><span>Donate: <a href=3D"http://www.team.net/donate.html";>http://www.=
team.net/donate.html</a></span><br><span>Archive: <a href=3D"http://www.team=
.net/archive">http://www.team.net/archive</a></span><br><span>Forums: <a hre=
f=3D"http://www.team.net/forums";>http://www.team.net/forums</a></span><br><s=
pan>Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman/options/fot=
/jhassall@gmail.com">http://autox.team.net/mailman/options/fot/jhassall@gmai=
l.com</a></span><br><span></span><br><span></span><br></div></blockquote></b=
ody></html>=

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