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Lyman;
Further to my earlier email: another possible cause is a mis match in the t=
hicknesses of the intake and exhaust manifold flanges. If they are not abou=
t the same, the bridges can hang up on the stud and appear to be tight but =
not really pressing on the flange. =C2=A0The cure for this is to either ope=
n up the hole in the bridge or weld some pedestals on the thinner flange. =
=C2=A0 Or a custom bridge....
Phil
On Wednesday, April 9, 2025 at 06:23:46 AM EDT, Philip Gott via Fot <fo=
t@autox.team.net> wrote: =20
Lyman;
Are you certain that the manifold and head mounting surfaces are flat? We=
=E2=80=99ve seen this with manifolds that have warped a bit.
As Dave recommended earlier, the thicker high performance Remflex gaskets a=
vailable from Moss or the even thicker ones from Brian at British Frame and=
Engine will accommodate some of this, but not all. The clamping force is l=
ow due to the need for the exhaust manifold to slide on the gasket and henc=
e the limited bolt tightening torque recommended.
Hope this helps,
Phil Gott
Sent from my iPhone
> On Apr 8, 2025, at 7:01=E2=80=AFPM, Lyman Scherer via Fot <fot@autox.team=
.net> wrote:
>=20
> =EF=BB=BFStock TR Moss Motors intake gasket. #1 intake port blow-out, #4 =
port did same blow-out weeks prior
> No exhaust port leaks!!!
> This is BajaTR3 engine that never had this issue, raced for years.
> Difference: used existing TR4 intakes and headers. Clamping type in not s=
tock TR. Probably the cause!
> Are copper gasket available??
> Or better recommendations ??
> I can have gaskets made, just asking for experienced thoughts.
> Cheers, Lyman S.
>=20
>=20
> <IMG_8470.jpg>
>=20
> Sent from my iPhone_______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/vfracing@ao=
l.com
>=20
>=20
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
com
=20
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<html><head></head><body><div class=3D"ydpc0738470yahoo-style-wrap" style=
=3D"font-family:arial;font-size:16px;"><div></div>
<div dir=3D"ltr" data-setdir=3D"false">Lyman;</div><div dir=3D"ltr"=
data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Fur=
ther to my earlier email: another possible cause is a mis match in the thic=
knesses of the intake and exhaust manifold flanges. If they are not about t=
he same, the bridges can hang up on the stud and appear to be tight but not=
really pressing on the flange. The cure for this is to either open u=
p the hole in the bridge or weld some pedestals on the thinner flange. &nbs=
p; Or a custom bridge....</div><div dir=3D"ltr" data-setdir=3D"false"><br><=
/div><div dir=3D"ltr" data-setdir=3D"false">Phil</div><div><br></div>
=20
</div><div id=3D"yahoo_quoted_4304176654" class=3D"yahoo_quoted"><d=
iv class=3D"yahoo-style-wrap" style=3D"font-family:arial;font-size:16px;">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
=20
<div class=3D"quoted-text-header">
On Wednesday, April 9, 2025 at 06:23:46 AM EDT, Phi=
lip Gott via Fot <fot@autox.team.net> wrote:
</div>
</div><div style=3D"font-family:'Helvetica Neue', Helvetica=
, Arial, sans-serif;font-size:13px;color:#26282a;border-left: 1px solid #cc=
c;padding-left: 8px;margin: 0px 0px 0px 8px" class=3D"inline_reply_quote_co=
ntainer">
<div><br></div><div><br></div>
<div><div dir=3D"ltr">Lyman;<br clear=3D"none">Are you cert=
ain that the manifold and head mounting surfaces are flat? We=E2=80=99ve se=
en this with manifolds that have warped a bit.<br clear=3D"none">As Dave re=
commended earlier, the thicker high performance Remflex gaskets available f=
rom Moss or the even thicker ones from Brian at British Frame and Engine wi=
ll accommodate some of this, but not all. The clamping force is low due to =
the need for the exhaust manifold to slide on the gasket and hence the limi=
ted bolt tightening torque recommended.<br clear=3D"none">Hope this helps,<=
br clear=3D"none">Phil Gott<br clear=3D"none">Sent from my iPhone<br clear=
=3D"none"><br clear=3D"none">> On Apr 8, 2025, at 7:01=E2=80=AFPM, Lyman=
Scherer via Fot <<a shape=3D"rect" ymailto=3D"mailto:fot@autox.team.net=
" href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a>> wrote:<br c=
lear=3D"none">> <br clear=3D"none">> =EF=BB=BFStock TR Moss Motors in=
take gasket. #1 intake port blow-out, #4 port did same blow-out weeks prior=
<br clear=3D"none">> No exhaust port leaks!!!<br clear=3D"none">> Thi=
s is BajaTR3 engine that never had this issue, raced for years.<br clear=3D=
"none">> Difference: used existing TR4 intakes and headers. Clamping typ=
e in not stock TR. Probably the cause!<br clear=3D"none">> Are copper ga=
sket available??<br clear=3D"none">> Or better recommendations ??<br cle=
ar=3D"none">> I can have gaskets made, just asking for experienced thoug=
hts.<br clear=3D"none">> Cheers, Lyman S.<br clear=3D"none">> <br cle=
ar=3D"none">> <br clear=3D"none">> <IMG_8470.jpg><br clear=3D"n=
one">> <br clear=3D"none">> Sent from my iPhone______________________=
_________________________<br clear=3D"none">> <a shape=3D"rect" ymailto=
=3D"mailto:fot@autox.team.net"; href=3D"mailto:fot@autox.team.net";>fot@autox=
.team.net</a><br clear=3D"none">> <br clear=3D"none">> <a shape=3D"re=
ct" href=3D"http://www.fot-racing.com"; target=3D"_blank">http://www.fot-rac=
ing.com</a><br clear=3D"none">> <br clear=3D"none">> Donate: <a shape=
=3D"rect" href=3D"http://www.team.net/donate.html"; target=3D"_blank">http:/=
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ect" href=3D"http://autox.team.net/archive"; target=3D"_blank">http://autox.=
team.net/archive</a> <a shape=3D"rect" href=3D"http://www.team.net/pipermai=
l/fot" target=3D"_blank">http://www.team.net/pipermail/fot</a><br clear=3D"=
none">> Unsubscribe/Manage: <a shape=3D"rect" href=3D"http://autox.team.=
net/mailman/options/fot/vfracing@aol.com" target=3D"_blank">http://autox.te=
am.net/mailman/options/fot/vfracing@aol.com</a><div class=3D"yqt4443251487"=
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r=3D"none"><br clear=3D"none">_____________________________________________=
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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
--===============4683308448972805784==--
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