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Make certain that the gasket also has the accommodating holes!
Sent from my iPhone
> On Nov 30, 2019, at 11:56 AM, TeriAnn J. Wakeman via Fot <fot@autox.team.n=
et> wrote:
>=20
> =EF=BB=BF
> On 11/30/19 9:08 AM, van.mulders.marcel@telenet.be wrote:
>> That's interesting and may well be the reason.
>> The passages (the one in my cylinderhead and the 6 holes in the other hea=
d) have a diameter of about 12mm). So these passages are facing the block an=
d 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 cy=
linderhead.
>> Marcel
> There are usually thin walls between water passages and exhaust passage wa=
ys 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
>=20
>=20
>=20
>=20
>>=20
>> ----- Oorspronkelijk bericht -----
>> Van: "fot" <fot@autox.team.net>
>> Aan: "fot" <fot@autox.team.net>
>> Verzonden: Zaterdag 30 november 2019 16:50:06
>> Onderwerp: Re: [Fot] TR6 cylinderheads
>>=20
>> 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 poss=
ible)=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.
>>=20
>>=20
>> 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.
>>=20
>> TeriAnn
>> Who knows nothing about TR6 heads
>>=20
>=20
> _______________________________________________
> 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@aol=
.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">Make certain that the gasket also has the a=
ccommodating holes!<br><br><div dir=3D"ltr">Sent from my iPhone</div><div di=
r=3D"ltr"><br><blockquote type=3D"cite">On Nov 30, 2019, at 11:56 AM, TeriAn=
n J. Wakeman via Fot <fot@autox.team.net> wrote:<br><br></blockquote><=
/div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF
=20
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-8"=
>
=20
=20
<div class=3D"moz-cite-prefix">On 11/30/19 9:08 AM,
<a class=3D"moz-txt-link-abbreviated" href=3D"mailto:van.mulders.marce=
l@telenet.be">van.mulders.marcel@telenet.be</a> wrote:<br>
</div>
<blockquote type=3D"cite" cite=3D"mid:807951668.59641828.1575130095427.J=
avaMail.zimbra@telenet.be">
<pre class=3D"moz-quote-pre" wrap=3D"">That's interesting and may well=
be the reason.
The passages (the one in my cylinderhead and the 6 holes in the other head) h=
ave a diameter of about 12mm). So these passages are facing the block and ar=
e located precisely beneath the exhaust ports. My cylinderhead has all the w=
ork done, so I'd rather add these passages than searching for another cylind=
erhead.
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><font size=3D"1" face=3D"Arial"><img src=3D"http://atlanticz.ca/zclub=
/techtips/headporting/exhaustport.jpg" width=3D"768" height=3D"512" border=3D=
"0" data-unique-identifier=3D""></font></p>
<blockquote type=3D"cite" cite=3D"mid:807951668.59641828.1575130095427.J=
avaMail.zimbra@telenet.be">
<pre class=3D"moz-quote-pre" wrap=3D"">
----- Oorspronkelijk bericht -----
Van: "fot" <a class=3D"moz-txt-link-rfc2396E" href=3D"mailto:fot@autox.team.=
net"><fot@autox.team.net></a>
Aan: "fot" <a class=3D"moz-txt-link-rfc2396E" href=3D"mailto:fot@autox.team.=
net"><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 po=
ssible)=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
<span>_______________________________________________</span><br><span>fot@au=
tox.team.net</span><br><span></span><br><span>http://www.fot-racing.com</spa=
n><br><span></span><br><span>Donate: http://www.team.net/donate.html</span><=
br><span>Archive: http://autox.team.net/archive http://www.team.net/pipermai=
l/fot</span><br><span>Unsubscribe/Manage: http://autox.team.net/mailman/opti=
ons/fot/vfracing@aol.com</span><br><span></span><br><span></span><br></div><=
/blockquote></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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