Subject: Re: [Fot] TR4 head milling

From: Bob Kramer Gmail via Fot <[email-masked]>
Date: Fri, 5 Apr 2024 22:21:17 -0500

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on page 43 of the "triumph preparation handbook
it says "to achieve the 11.7c.r. mill .150" from the stock cylender head fac=
e,use the 87mm cyl. &=20
piston kit and a steel shim head gasket"

A  lot of us have done just that, successfully.=20

You only get one chance at life, make it a TRIUMPH.

> On Apr 5, 2024, at 9:58=E2=80=AFPM, tr4 via Fot <[email-masked]> wrote=
:
>=20
> =EF=BB=BF
> I have never had to go that far.  The problem would be not the combustion c=
hamber but the flat surface would be way too thin and collapse in short orde=
r.  You would be much better off with popping the piston or go with a slight=
 done to get that level of compression.
>=20
>=20
>=20
> Sent via the Samsung Galaxy S23+ 5G, an AT&T 5G smartphone
>=20
>=20
> -------- Original message --------
> From: GREGORY THOMPSON via Fot <[email-masked]>
> Date: 4/5/24 6:36 PM (GMT-06:00)
> To: FOT Triumph <[email-masked]>
> Subject: [Fot] TR4 head milling
>=20
> Has anyone had an issue with breaking into a water jacket on the TR4A head=
 with taking off .150?
>=20
> Thank you,
>=20
> Greg Thompson=20
> _______________________________________________
> [email-masked]
>=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/rkramer56@gm=
ail.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"><span style=3D"-webkit-text-size-adjust: au=
to; font-family: Verdana, Trebuchet, &quot;Trebuchet MS&quot;, sans-serif; b=
ackground-color: rgb(255, 255, 255);">on page 43 of the "triumph preparation=
 handbook</span><br style=3D"-webkit-text-size-adjust: auto; font-family: Ve=
rdana, Trebuchet, &quot;Trebuchet MS&quot;, sans-serif; background-color: rg=
b(255, 255, 255);"><span style=3D"-webkit-text-size-adjust: auto; font-famil=
y: Verdana, Trebuchet, &quot;Trebuchet MS&quot;, sans-serif; background-colo=
r: rgb(255, 255, 255);">it says "to achieve the 11.7c.r. mill .150"&nbsp;</s=
pan><span style=3D"-webkit-text-size-adjust: auto; font-family: Verdana, Tre=
buchet, &quot;Trebuchet MS&quot;, sans-serif; background-color: rgb(255, 255=
, 255);">from the stock cylender head face,use the 87mm cyl. &amp;&nbsp;</sp=
an><br style=3D"-webkit-text-size-adjust: auto; font-family: Verdana, Trebuc=
het, &quot;Trebuchet MS&quot;, sans-serif; background-color: rgb(255, 255, 2=
55);"><span style=3D"-webkit-text-size-adjust: auto; font-family: Verdana, T=
rebuchet, &quot;Trebuchet MS&quot;, sans-serif; background-color: rgb(255, 2=
55, 255);">piston kit and a steel shim head gasket"</span><div><font face=3D=
"Verdana, Trebuchet, Trebuchet MS, sans-serif"><span style=3D"-webkit-text-s=
ize-adjust: auto; background-color: rgb(255, 255, 255);"><br></span></font><=
/div><div><font face=3D"Verdana, Trebuchet, Trebuchet MS, sans-serif"><span s=
tyle=3D"-webkit-text-size-adjust: auto; background-color: rgb(255, 255, 255)=
;"><br></span></font></div><div><font face=3D"Verdana, Trebuchet, Trebuchet M=
S, sans-serif"><span style=3D"-webkit-text-size-adjust: auto; background-col=
or: rgb(255, 255, 255);">A &nbsp;lot of us have done just that, successfully=
.&nbsp;</span></font></div><div><font face=3D"Verdana, Trebuchet, Trebuchet M=
S, sans-serif"><span style=3D"-webkit-text-size-adjust: auto; background-col=
or: rgb(255, 255, 255);"><br></span></font></div><div><font face=3D"Verdana,=
 Trebuchet, Trebuchet MS, sans-serif"><span style=3D"-webkit-text-size-adjus=
t: auto; background-color: rgb(255, 255, 255);"><br id=3D"lineBreakAtBeginni=
ngOfSignature"></span></font><div dir=3D"ltr">You only get one chance at lif=
e, make it a TRIUMPH.</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On=
 Apr 5, 2024, at 9:58=E2=80=AFPM, tr4 via Fot &lt;[email-masked]&gt; wro=
te:<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=
=BB=BF<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-=
8"><div dir=3D"auto">I have never had to go that far.&nbsp; The problem woul=
d be not the combustion chamber but the flat surface would be way too thin a=
nd collapse in short order.&nbsp; You would be much better off with popping t=
he piston or go with a slight done to get that level of compression.</div><d=
iv dir=3D"auto"><br></div><div dir=3D"auto"><br></div><div dir=3D"auto"><br>=
</div><div id=3D"composer_signature" dir=3D"auto"><div style=3D"font-size:12=
px;color:#575757" dir=3D"auto">Sent via the Samsung Galaxy S23+ 5G, an AT&am=
p;T 5G smartphone</div></div><div dir=3D"auto"><br></div><div><br></div><div=
 align=3D"left" dir=3D"auto" style=3D"font-size:100%;color:#000000"><div>---=
----- Original message --------</div><div>From: GREGORY THOMPSON via Fot &lt=
;[email-masked]&gt; </div><div>Date: 4/5/24  6:36 PM  (GMT-06:00) </div>=
<div>To: FOT Triumph &lt;[email-masked]&gt; </div><div>Subject: [Fot] TR=
4 head milling </div><div><br></div></div>Has anyone had an issue with break=
ing into a water jacket on the TR4A head with taking off .150?<div><br></div=
><div><div style=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif=
;font-size:16px;" class=3D"ydp72b54109yahoo-style-wrap"><div><div>Thank you,=
</div><div><br></div><div class=3D"ydp72b54109signature">Greg Thompson&nbsp;=
</div></div></div></div><span>______________________________________________=
_</span><br><span>[email-masked]</span><br><span></span><br><span>http:/=
/www.fot-racing.com</span><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/pipermail/fot</span><br><span>Unsubscribe/Manage: http://aut=
ox.team.net/mailman/options/fot/[email-masked]</span><br><span></span><=
br><span></span><br></div></blockquote></div></body></html>=

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_______________________________________________
[email-masked]

http://www.fot-racing.com

Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot

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---

From: Ponostyle via Fot <[email-masked]>
Date: Fri, 5 Apr 2024 18:52:24 -1000

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You might get away with that without staking, but you might not. These =
are clunky castings, variation from head to head is likely. Kas used =
staking to prevent collapse. My heads were more conservative except for =
the one that came on the original engine in Peyote, which didn=E2=80=99t =
hold gaskets reliably.=20
Bill Babcock
Beach Bum
[email-masked]
https://www.Ponostyle.com

> On Apr 5, 2024, at 5:21 PM, Bob Kramer Gmail via Fot =
<[email-masked]> wrote:
> it says "to achieve the 11.7c.r. mill .150" from the stock cylender =
head face,use the 87mm cyl. &=20
>> On Apr 5, 2024, at 9:58=E2=80=AFPM, tr4 via Fot <[email-masked]> =
wrote:
>>=20
>> =EF=BB=BF
>> I have never had to go that far.  The problem would be not the =
combustion chamber but the flat surface would be way too thin and =
collapse in short order.  You would be much better off with popping the =
piston or go with a slight done to get that level of compression.
>> Has anyone had an issue with breaking into a water jacket on the TR4A =
head with taking off .150?
>> Archive: http://autox.team.net/archive =
http://www.team.net/pipermail/fot
>> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/[email-masked]
> Archive: http://autox.team.net/archive =
http://www.team.net/pipermail/fot
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/[email-masked]

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	charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">You =
might get away with that without staking, but you might not. These are =
clunky castings, variation from head to head is likely. Kas used staking =
to prevent collapse. My heads were more conservative except for the one =
that came on the original engine in Peyote, which didn=E2=80=99t hold =
gaskets reliably.&nbsp;<br class=3D""><div class=3D"">
<div><b class=3D"">Bill Babcock</b><br class=3D""><i class=3D"">Beach =
Bum</i><br class=3D""><a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a><br =
class=3D"">https://www.Ponostyle.com<br class=3D""></div>

</div>
<div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Apr 5, 2024, at 5:21 PM, Bob Kramer Gmail via Fot &lt;<a =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><meta =
http-equiv=3D"content-type" content=3D"text/html; charset=3Dutf-8" =
class=3D""><div dir=3D"auto" class=3D""><span =
style=3D"-webkit-text-size-adjust: auto; font-family: Verdana, =
Trebuchet, &quot;Trebuchet MS&quot;, sans-serif; background-color: =
rgb(255, 255, 255);" class=3D"">on page 43 of the "triumph preparation =
handbook</span><br style=3D"-webkit-text-size-adjust: auto; font-family: =
Verdana, Trebuchet, &quot;Trebuchet MS&quot;, sans-serif; =
background-color: rgb(255, 255, 255);" class=3D""><span =
style=3D"-webkit-text-size-adjust: auto; font-family: Verdana, =
Trebuchet, &quot;Trebuchet MS&quot;, sans-serif; background-color: =
rgb(255, 255, 255);" class=3D"">it says "to achieve the 11.7c.r. mill =
.150"&nbsp;</span><span style=3D"-webkit-text-size-adjust: auto; =
font-family: Verdana, Trebuchet, &quot;Trebuchet MS&quot;, sans-serif; =
background-color: rgb(255, 255, 255);" class=3D"">from the stock =
cylender head face,use the 87mm cyl. &amp;&nbsp;</span><br =
style=3D"-webkit-text-size-adjust: auto; font-family: Verdana, =
Trebuchet, &quot;Trebuchet MS&quot;, sans-serif; background-color: =
rgb(255, 255, 255);" class=3D""><span style=3D"-webkit-text-size-adjust: =
auto; font-family: Verdana, Trebuchet, &quot;Trebuchet MS&quot;, =
sans-serif; background-color: rgb(255, 255, 255);" class=3D"">piston kit =
and a steel shim head gasket"</span><div class=3D""><font face=3D"Verdana,=
 Trebuchet, Trebuchet MS, sans-serif" class=3D""><span =
style=3D"-webkit-text-size-adjust: auto; background-color: rgb(255, 255, =
255);" class=3D""><br class=3D""></span></font></div><div class=3D""><font=
 face=3D"Verdana, Trebuchet, Trebuchet MS, sans-serif" class=3D""><span =
style=3D"-webkit-text-size-adjust: auto; background-color: rgb(255, 255, =
255);" class=3D""><br class=3D""></span></font></div><div class=3D""><font=
 face=3D"Verdana, Trebuchet, Trebuchet MS, sans-serif" class=3D""><span =
style=3D"-webkit-text-size-adjust: auto; background-color: rgb(255, 255, =
255);" class=3D"">A &nbsp;lot of us have done just that, =
successfully.&nbsp;</span></font></div><div class=3D""><font =
face=3D"Verdana, Trebuchet, Trebuchet MS, sans-serif" class=3D""><span =
style=3D"-webkit-text-size-adjust: auto; background-color: rgb(255, 255, =
255);" class=3D""><br class=3D""></span></font></div><div class=3D""><font=
 face=3D"Verdana, Trebuchet, Trebuchet MS, sans-serif" class=3D""><span =
style=3D"-webkit-text-size-adjust: auto; background-color: rgb(255, 255, =
255);" class=3D""><br id=3D"lineBreakAtBeginningOfSignature" =
class=3D""></span></font><div dir=3D"ltr" class=3D"">You only get one =
chance at life, make it a TRIUMPH.</div><div dir=3D"ltr" class=3D""><br =
class=3D""><blockquote type=3D"cite" class=3D"">On Apr 5, 2024, at =
9:58=E2=80=AFPM, tr4 via Fot &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt; wrote:<br class=3D""><br =
class=3D""></blockquote></div><blockquote type=3D"cite" class=3D""><div =
dir=3D"ltr" class=3D"">=EF=BB=BF<meta http-equiv=3D"Content-Type" =
content=3D"text/html; charset=3DUTF-8" class=3D""><div dir=3D"auto" =
class=3D"">I have never had to go that far.&nbsp; The problem would be =
not the combustion chamber but the flat surface would be way too thin =
and collapse in short order.&nbsp; You would be much better off with =
popping the piston or go with a slight done to get that level of =
compression.</div><div dir=3D"auto" class=3D""><br class=3D""></div><div =
dir=3D"auto" class=3D""><br class=3D""></div><div dir=3D"auto" =
class=3D""><br class=3D""></div><div id=3D"composer_signature" =
dir=3D"auto" class=3D""><div style=3D"font-size:12px;color:#575757" =
dir=3D"auto" class=3D"">Sent via the Samsung Galaxy S23+ 5G, an AT&amp;T =
5G smartphone</div></div><div dir=3D"auto" class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><div align=3D"left" =
dir=3D"auto" style=3D"font-size: 100%;" class=3D""><div =
class=3D"">-------- Original message --------</div><div class=3D"">From: =
GREGORY THOMPSON via Fot &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt; </div><div class=3D"">Date: 4/5/24 =
 6:36 PM  (GMT-06:00) </div><div class=3D"">To: FOT Triumph &lt;<a =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a>&gt; =
</div><div class=3D"">Subject: [Fot] TR4 head milling </div><div =
class=3D""><br class=3D""></div></div>Has anyone had an issue with =
breaking into a water jacket on the TR4A head with taking off .150?<div =
class=3D""><br class=3D""></div><div class=3D""><div =
style=3D"font-family:Helvetica Neue, Helvetica, Arial, =
sans-serif;font-size:16px;" class=3D"ydp72b54109yahoo-style-wrap"><div =
class=3D""><div class=3D"">Thank you,</div><div class=3D""><br =
class=3D""></div><div class=3D"ydp72b54109signature">Greg =
Thompson&nbsp;</div></div></div></div><span =
class=3D"">_______________________________________________</span><br =
class=3D""><span class=3D""><a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a></span><br class=3D""><span =
class=3D""></span><br class=3D""><span class=3D""><a =
href=3D"http://www.fot-racing.com" =
class=3D"">http://www.fot-racing.com</a></span><br class=3D""><span =
class=3D""></span><br class=3D""><span class=3D"">Donate: <a =
href=3D"http://www.team.net/donate.html" =
class=3D"">http://www.team.net/donate.html</a></span><br class=3D""><span =
class=3D"">Archive: <a href=3D"http://autox.team.net/archive" =
class=3D"">http://autox.team.net/archive</a> <a =
href=3D"http://www.team.net/pipermail/fot" =
class=3D"">http://www.team.net/pipermail/fot</a></span><br =
class=3D""><span class=3D"">Unsubscribe/Manage: <a =
href=3D"http://autox.team.net/mailman/options/fot/[email-masked]" =
class=3D"">http://autox.team.net/mailman/options/fot/[email-masked]</=
a></span><br class=3D""><span class=3D""></span><br class=3D""><span =
class=3D""></span><br =
class=3D""></div></blockquote></div></div>________________________________=
_______________<br class=3D""><a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a><br class=3D""><br =
class=3D"">http://www.fot-racing.com<br class=3D""><br class=3D"">Donate: =
http://autox.team.net/archive http://www.team.net/pipermail/fot<br =
class=3D"">Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/[email-masked]<br =
class=3D""><br class=3D""><br class=3D""></div></blockquote></div><br =
class=3D""></body></html>=

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