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Does anyone have any experience using Cometic head gaskets with the TR-3/4 =
engines?=C2=A0 I have a slightly modified (10:1 compression with a cam) eng=
ine in my street TR-3.=C2=A0 I built the engine about 2-3 years ago, and it=
runs great.=C2=A0 However, it has always used water and eventually over he=
ats, especially on real hot days, which we get a lot of in North Carolina.=
=C2=A0 I have run a test on it, and the engine definitely has a compression=
leak.
So, I removed the head and inspected the gasket.=C2=A0 It is the stock copp=
er gasket.=C2=A0 There is no obvious indication of a leak around the gasket=
.=C2=A0 I checked the liner protrusion and all were within spec (.003" - .0=
05").=C2=A0 I have always used Gaskacinch sealant, and have never had one l=
eak before.
A friend of mine, who builds a lot of American engines (racing and otherwis=
e) suggested I look into a Cometic head gasket.=C2=A0 They are supposed to =
seal better than a copper gasket, though I don't know why.=C2=A0 Sure enoug=
h, I looked up their web site and they have a gasket listed for the TR-4 en=
gine (also one for the TR-6).=C2=A0 My only concern is that it is listed as=
88MM bore.=C2=A0 I am using a new 87MM piston and liner set.
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.=C2=A0 T=
hanks.
Jack Wheeler
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<html><head></head><body><div style=3D"color:#000; background-color:#fff; f=
ont-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, =
sans-serif;font-size:16px"><div id=3D"yui_3_16_0_1_1446816007195_26397">Doe=
s anyone have any experience using Cometic head gaskets with the TR-3/4 eng=
ines? 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 ru=
ns 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.&nbs=
p; I have run a test on it, and the engine definitely has a compression lea=
k.</div><div id=3D"yui_3_16_0_1_1446816007195_26694"><br></div><div id=3D"y=
ui_3_16_0_1_1446816007195_26695">So, I removed the head and inspected the g=
asket. It is the stock copper gasket. There is no obvious indic=
ation 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=3D"yui_3_16_0_1_1=
446816007195_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 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=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 anyone has had any =
experience with these gaskets on the TR-3/4 engines, I would really appreci=
ate any feedback, both positive and negative. Thanks.</div><div id=3D=
"yui_3_16_0_1_1446816007195_26721" dir=3D"ltr"><br></div><div id=3D"yui_3_1=
6_0_1_1446816007195_26722" dir=3D"ltr">Jack Wheeler<br></div></div></body><=
/html>
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