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Joe, my experience is only with a hot street engine but worth =
expressing. 87mm pistons and liners, .090 milled from head and Kastner D =
cam.
I ran a stock AE330 for almost 40 years with no issues then I did a =
valve job and hardened EX seats because of recession in #4 EX valve =
seat. The shop took another approx. .010 off the head (so now approx. =
.100 off the head) . I used the Cometic 91mm gasket and it burned =
through at #4 in 2 years of street driving. Maybe 15,000 miles.
The engine was tired by this time having been rebuilt in the =
80=E2=80=99s. I rebuilt the engine and decided to use another AE330 with =
a new head at .070 milled. That gasket leaked because of my dumb mistake =
not re-torqueing after a few heat cycles. Replaced with another AE330 =
and now have approx. 10,000 miles with no issues. I did re-torque a =
couple of times.
Original AE330 copper gaskets are getting hard to find but occasionally =
show up on EBay, I just bought one. The =E2=80=9Cnew=E2=80=9D repro AE =
330 copper gaskets are not the same especially in the valve pocket area, =
I=E2=80=99ve compared them.
My point in al of this is take a look at how an original AE330 fits to =
your head and block and give it consideration, you might find it =
acceptable. Or continue to use the steel with thin copper wire that =
you=E2=80=99ve used. I am not a fan of the Cometic but admittedly mine =
was used on a street engine with no plans to change it every year. =
Tony=E2=80=99s experience is worthy of attention, he hammers that engine =
pretty hard.
JVV
From: Joe Boruch via Fot=20
Sent: Saturday, October 24, 2020 9:25 PM
To: FOT List=20
Subject: [Fot] Best head gasket revisited
I was not receiving list emails for a while, so I missed the =
conversation a few months ago.=20
For those of you using the composite or even Cometic gaskets, have you =
done much relieving around the intake valves? I have not found any such =
gasket that would not protrude out into the combustion chamber. I even =
bought one from BPNW that was good for up to 92mm bore, but it still =
protruded. I have been using steel shim head gaskets with copper wire =
o-rings in the fire rings, but would like a simpler set up. I have held =
off on putting my TR3 engine back together for years (while playing with =
S2000s and Miatas) waiting for a better head gasket. Joe B
-------------------------------------------------------------------------=
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
http://autox.team.net/mailman/options/fot/jerryvv@roadrunner.com
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<HTML><HEAD></HEAD>
<BODY dir=3Dltr>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>Joe, my experience is only with a hot street engine but worth =
expressing.=20
87mm pistons and liners, .090 milled from head and Kastner D cam.</DIV>
<DIV>I ran a stock AE330 for almost 40 years with no issues then I did a =
valve=20
job and hardened EX seats because of recession in #4 EX valve seat. The =
shop=20
took another approx. .010 off the head (so now approx. .100 off the =
head) . I=20
used the Cometic 91mm gasket and it burned through at #4 in 2 years of =
street=20
driving. Maybe 15,000 miles.</DIV>
<DIV>The engine was tired by this time having been rebuilt in the =
80=E2=80=99s. I=20
rebuilt the engine and decided to use another AE330 with a new head at =
.070=20
milled. That gasket leaked because of my dumb mistake not re-torqueing =
after a=20
few heat cycles. Replaced with another AE330 and now have approx. 10,000 =
miles=20
with no issues. I did re-torque a couple of times.</DIV>
<DIV> </DIV>
<DIV>Original AE330 copper gaskets are getting hard to find but =
occasionally=20
show up on EBay, I just bought one. The =E2=80=9Cnew=E2=80=9D repro AE =
330 copper gaskets are=20
not the same especially in the valve pocket area, I=E2=80=99ve compared =
them.</DIV>
<DIV> </DIV>
<DIV>My point in al of this is take a look at how an original AE330 fits =
to your=20
head and block and give it consideration, you might find it acceptable. =
Or=20
continue to use the steel with thin copper wire that you=E2=80=99ve =
used. I am not a fan=20
of the Cometic but admittedly mine was used on a street engine with no =
plans to=20
change it every year. Tony=E2=80=99s experience is worthy of attention, =
he hammers that=20
engine pretty hard.</DIV>
<DIV> </DIV>
<DIV>JVV</DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV> </DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A =
title=3Dfot@autox.team.net>Joe=20
Boruch via Fot</A> </DIV>
<DIV><B>Sent:</B> Saturday, October 24, 2020 9:25 PM</DIV>
<DIV><B>To:</B> <A title=3Dfot@autox.team.net>FOT List</A> </DIV>
<DIV><B>Subject:</B> [Fot] Best head gasket revisited</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV class=3Dyahoo-style-wrap=20
style=3D"FONT-SIZE: 13px; FONT-FAMILY: helvetica neue, helvetica, arial, =
sans-serif">
<DIV dir=3Dltr data-setdir=3D"false">I was not receiving list emails for =
a while, so=20
I missed the conversation a few months ago. </DIV>
<DIV dir=3Dltr data-setdir=3D"false"> </DIV>
<DIV dir=3Dltr data-setdir=3D"false">For those of you using the =
composite or even=20
Cometic gaskets, have you done much relieving around the intake =
valves? I=20
have not found any such gasket that would not protrude out into the =
combustion=20
chamber. I even bought one from BPNW that was good for up to 92mm =
bore,=20
but it still protruded. I have been using steel shim head gaskets =
with=20
copper wire o-rings in the fire rings, but would like a simpler set =
up. I=20
have held off on putting my TR3 engine back together for years (while =
playing=20
with S2000s and Miatas) waiting for a better head gasket. Joe=20
B</DIV></DIV>
<P>
<HR>
_______________________________________________<BR>fot@autox.team.net<BR>=
<BR>http://www.fot-racing.com<BR><BR>Donate:=20
http://autox.team.net/archive=20
http://www.team.net/pipermail/fot<BR>Unsubscribe/Manage:=20
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