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Phill,=20
Mordy Dunst made the plain copper gaskets for me, together with steel O-rin=
gs. I asked him to NOT make the coolant passages in the gaskets. That's the=
reason why it took so long to notice that my cylinderhead has fewer passag=
es!=20
I think I'm going to drill the missing holes in the cylinderhead (and in th=
e gasket!).=20
Teri Ann,=20
I would have to drill from beneath toward the water passage in the bottom l=
eft of your picture : it seems not to be very delicate. Probably the castin=
g is the same for earlier and later cylinderheads, only the drillings and m=
achining are different?=20
The holes I have to drill are in line with the holes for the studs and the =
TR6 cyl head is similar with the picture.=20
Marcel=20
Van: "Phil Gott" <vfracing@aol.com>=20
Aan: "TeriAnn J. Wakeman" <tjwakeman@gmail.com>=20
Cc: "van mulders marcel" <van.mulders.marcel@telenet.be>, "fot" <fot@autox.=
team.net>=20
Verzonden: Zaterdag 30 november 2019 18:54:39=20
Onderwerp: Re: [Fot] TR6 cylinderheads=20
Make certain that the gasket also has the accommodating holes!=20
Sent from my iPhone=20
On Nov 30, 2019, at 11:56 AM, TeriAnn J. Wakeman via Fot <fot@autox.team.ne=
t> wrote:=20
BQ_BEGIN
BQ_END
On 11/30/19 9:08 AM, [ mailto:van.mulders.marcel@telenet.be | van.mulders.m=
arcel@telenet.be ] wrote:=20
BQ_BEGIN
That's interesting and may well be the reason.
The passages (the one in my cylinderhead and the 6 holes in the other head)=
have a diameter of about 12mm). So these passages are facing the block and=
are located precisely beneath the exhaust ports. My cylinderhead has all t=
he work done, so I'd rather add these passages than searching for another c=
ylinderhead.
Marcel=20
BQ_END
There are usually thin walls between water passages and exhaust passage way=
s and the spaces around the combustion chambers follow curves. It is not ju=
st a straight drilled hole.=20
I suggest you chalk up your existing head as practice and start again with =
an earlier head.=20
TeriAnn=20
BQ_BEGIN
----- Oorspronkelijk bericht -----
Van: "fot" [ mailto:fot@autox.team.net | <fot@autox.team.net> ] Aan: "fot" =
[ mailto:fot@autox.team.net | <fot@autox.team.net> ] Verzonden: Zaterdag 30=
november 2019 16:50:06
Onderwerp: Re: [Fot] TR6 cylinderheads
Comparing the cylinderhead of this engine with another 6 cylinder head=20
(probably also from a TR6 , but from a=C3=82=C2=A0 Triumph saloon is also p=
ossible)=20
: it turns out that my cylinderhead is lacking 5 coolant passages. My=20
cylinderhead has only a passage just beneath outlet port no 6. The other=20
cylinderhead has passages beneath every outlet port. I didn't know of=20
this difference=C3=82=C2=A0 between 6 cylinder heads.
Just a WAG. In the late 1960s and 1970s SMOG regulations were kicking=20
in. One of the first things that manufacturers did was have their=20
engines run hotter. Some manufacturers accomplished that by reducing=20
coolant flow through cylinder heads, reducing passage size and/ or=20
eliminating cooling passages. My WAG is that you have a late TR6 head=20
intended for the US or just California market. I suggest going shopping=20
for an earlier head that still has all the passages.
TeriAnn
Who knows nothing about TR6 heads=20
BQ_END
_______________________________________________=20
fot@autox.team.net=20
http://www.fot-racing.com=20
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot=20
com=20
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<html><body><div style=3D"font-family: Verdana, Arial, Helvetica, sans-seri=
f; font-size: 10pt; color: #000000"><div>Phill,</div><div>Mordy Dunst made =
the plain copper gaskets for me, together with steel O-rings. I asked=
him to NOT make the coolant passages in the gaskets. That's the reason why=
it took so long to notice that my cylinderhead has fewer passages!</div><d=
iv>I think I'm going to drill the missing holes in the cylinderhead (and in=
the gasket!).</div><div>Teri Ann,</div><div>I would have to drill from ben=
eath toward the water passage in the bottom left of your picture : it seems=
not to be very delicate. Probably the casting is the same for earlier and =
later cylinderheads, only the drillings and machining are different?</div><=
div>The holes I have to drill are in line with the holes for the studs and =
the TR6 cyl head is similar with the picture.</div><div>Marcel</div><div><b=
r></div><hr id=3D"zwchr" data-marker=3D"__DIVIDER__"><div data-marker=3D"__=
HEADERS__"><b>Van: </b>"Phil Gott" <vfracing@aol.com><br><b>Aan: </b>=
"TeriAnn J. Wakeman" <tjwakeman@gmail.com><br><b>Cc: </b>"van mulders=
marcel" <van.mulders.marcel@telenet.be>, "fot" <fot@autox.team.ne=
t><br><b>Verzonden: </b>Zaterdag 30 november 2019 18:54:39<br><b>Onderwe=
rp: </b>Re: [Fot] TR6 cylinderheads<br></div><br><div data-marker=3D"__QUOT=
ED_TEXT__"><div>Make certain that the gasket also has the accommodating hol=
es!<br><br><div dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><br><=
blockquote>On Nov 30, 2019, at 11:56 AM, TeriAnn J. Wakeman via Fot <fot=
@autox.team.net> wrote:<br><br></blockquote></div><blockquote><div dir=
=3D"ltr">=EF=BB=BF
=20
</div></blockquote>
=20
=20
<div>On 11/30/19 9:08 AM,
<a href=3D"mailto:van.mulders.marcel@telenet.be"; target=3D"_blank" re=
l=3D"nofollow noopener noreferrer">van.mulders.marcel@telenet.be</a> wrote:=
<br>
</div>
<blockquote>
<pre class=3D"moz-quote-pre">That's interesting and may well be the r=
eason.
The passages (the one in my cylinderhead and the 6 holes in the other head)=
have a diameter of about 12mm). So these passages are facing the block and=
are located precisely beneath the exhaust ports. My cylinderhead has all t=
he work done, so I'd rather add these passages than searching for another c=
ylinderhead.
Marcel</pre>
</blockquote>
<p>There are usually thin walls between water passages and exhaust
passage ways and the spaces around the combustion chambers follow
curves. It is not just a straight drilled hole.</p>
<p>I suggest you chalk up your existing head as practice and start
again with an earlier head.</p>
<p>TeriAnn<br>
</p>
<p><br>
</p>
<p><span size=3D"1" face=3D"Arial" data-mce-style=3D"font-family: Arial=
; font-size: xx-small;" style=3D"font-family: Arial; font-size: xx-small;">=
<img width=3D"768" height=3D"512" border=3D"0" src=3D"http://atlanticz.ca/z=
club/techtips/headporting/exhaustport.jpg" saveddisplaymode=3D""></span></p=
>
<blockquote>
<pre class=3D"moz-quote-pre">----- Oorspronkelijk bericht -----
Van: "fot" <a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=3D"n=
ofollow noopener noreferrer"><fot@autox.team.net></a>
Aan: "fot" <a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=3D"n=
ofollow noopener noreferrer"><fot@autox.team.net></a>
Verzonden: Zaterdag 30 november 2019 16:50:06
Onderwerp: Re: [Fot] TR6 cylinderheads
Comparing the cylinderhead of this engine with another 6 cylinder head=20
(probably also from a TR6 , but from a=C3=82 Triumph saloon is also p=
ossible)=20
: it turns out that my cylinderhead is lacking 5 coolant passages. My=20
cylinderhead has only a passage just beneath outlet port no 6. The other=20
cylinderhead has passages beneath every outlet port. I didn't know of=20
this difference=C3=82 between 6 cylinder heads.
Just a WAG. In the late 1960s and 1970s SMOG regulations were kicking=20
in. One of the first things that manufacturers did was have their=20
engines run hotter. Some manufacturers accomplished that by reducing=20
coolant flow through cylinder heads, reducing passage size and/ or=20
eliminating cooling passages. My WAG is that you have a late TR6 head=20
intended for the US or just California market. I suggest going shopping=20
for an earlier head that still has all the passages.
TeriAnn
Who knows nothing about TR6 heads
</pre>
</blockquote>
<br>
=20
_______________________________________________<br>fot@autox.team.net<br><b=
r>http://www.fot-racing.com<br><br>Donate: http://www.team.net/donate.html<=
br>Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot=
<br>Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/vfracing@=
aol.com<br><br><br></div><br></div></div></body></html>
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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
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