--===============2071180054125410025==
--089e0111bb6a5df591051f30348f
Content-Transfer-Encoding: quoted-printable
My guess is the vented valve cover cap on the aluminum valve covers isn't
vented very well. Triumph spec'd a 1/8' metered valve in their vented
filler caps.
That's a great tip on how to check for excess pressure in the crankcase.
I'll have to give it a try next time I have get the car out.
I think I've tried 3 different PCV valves and since I have the parts will
try the gulp valve. Should be a interesting experiment!
Thanks for the info.
Brad
On Mon, Sep 7, 2015 at 4:52 PM, John & Pat Donnelly <pdonnel1@san.rr.com>
wrote:
> Well, I bought the vented cap when I bought the valve cover from TSI. It
> has a hole on the top, but who knows how much it's really venting. I hav=
e
> roller rockers installed so I need the extra room.
>
>
>
> No, the draft hole is still plugged.
>
>
>
> A mechanic once told me that is you take the valve cover cap off when
> running, then put a shop rag over it you should only see a little
> deflection. When I did it to my car it went up 3-4 inches. That was my bi=
g
> clue that I needed more venting.
>
>
>
> All PVC valves are different and each handles different volumes. Some hav=
e
> springs that only actuate with a pressure differential. I don=E2=80=99t k=
now about
> the GP PVC valve but you might look around for another. They're cheap.
>
>
>
>
>
> *From:* Triumphs [mailto:triumphs-bounces@autox.team.net] *On Behalf Of *=
Geo
> Hahn
> *Sent:* Monday, September 07, 2015 11:53 AM
> *To:* Brad Kahler
> *Cc:* Triumphs
> *Subject:* Re: [TR] TR4 road draft tube plug
>
>
>
> On Mon, Sep 7, 2015 at 10:08 AM, Brad Kahler <bkahler1@gmail.com> wrote:
>
>
>
> ...Also, is your valve cover cap vented (i.e. TR4A style) or non-vented?
>
>
>
>
>
> Those terms (or something) confuse me.
>
>
>
> My late TR4 does not have a vented cap - it seals tight. I presume that
> TR4As are similar. Early TR4s and all TR3s had a cap that vents to the
> atmosphere.
>
>
>
> If you are fighting blow-by (and I think you are) it would seem that a
> vented cap might help -- and since your engine apparently has a road draf=
t
> tube fitted as original then I believe a vented cap would have also been =
on
> it.
>
>
>
> Geo
>
>
> ------------------------------
> <https://www.avast.com/antivirus>
>
> This email has been checked for viruses by Avast antivirus software.
> www.avast.com <https://www.avast.com/antivirus>
>
>
>
> ** triumphs@autox.team.net **
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/triumphs/bkahler1@gmail.com
>
>
--089e0111bb6a5df591051f30348f
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">My guess is the vented valve cover cap on the aluminum val=
ve covers isn't vented very well.=C2=A0 Triumph spec'd a 1/8' m=
etered valve in their vented filler caps. =C2=A0<div><br></div><div>That=
9;s a great tip on how to check for excess pressure in the crankcase.=C2=A0=
I'll have to give it a try next time I have get the car out. =C2=A0</d=
iv><div><br></div><div>I think I've tried 3 different PCV valves and si=
nce I have the parts will try the gulp valve.=C2=A0 Should be a interesting=
experiment!</div><div><br></div><div>Thanks for the info.</div><div><br></=
div><div>Brad</div><div><br><div class=3D"gmail_extra"><br><div class=3D"gm=
ail_quote">On Mon, Sep 7, 2015 at 4:52 PM, John & Pat Donnelly <span di=
r=3D"ltr"><<a href=3D"mailto:pdonnel1@san.rr.com"; target=3D"_blank">pdon=
nel1@san.rr.com</a>></span> wrote:<br><blockquote class=3D"gmail_quote" =
style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><di=
v lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><p class=3D"MsoNormal"=
><span style=3D"font-size:10.0pt;font-family:"Arial","sans-s=
erif";color:#1f497d">Well, I bought the vented cap when I bought the v=
alve cover from TSI. It has a hole on the top, but who knows how much it=
9;s really venting.=C2=A0 I have roller rockers installed so I need the ext=
ra room.<u></u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"font=
-size:10.0pt;font-family:"Arial","sans-serif";color:#1f=
497d"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"=
font-size:10.0pt;font-family:"Arial","sans-serif";color=
:#1f497d">No, the draft hole is still plugged.<u></u><u></u></span></p><p c=
lass=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Arial&=
quot;,"sans-serif";color:#1f497d"><u></u>=C2=A0<u></u></span></p>=
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ar=
ial","sans-serif";color:#1f497d">A mechanic once told me tha=
t is you take the valve cover cap off when running, then put a shop rag ove=
r it you should only see a little deflection. When I did it to my car it we=
nt up 3-4 inches. That was my big clue that I needed more venting.<u></u><u=
></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font=
-family:"Arial","sans-serif";color:#1f497d"><u></u>=C2=
=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt=
;font-family:"Arial","sans-serif";color:#1f497d">All PV=
C valves are different and each handles different volumes. Some have spring=
s that only actuate with a pressure differential. I don=E2=80=99t know abou=
t the GP PVC valve but you might look around for another. They're cheap=
.<u></u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:1=
0.0pt;font-family:"Arial","sans-serif";color:#1f497d"><=
u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-si=
ze:10.0pt;font-family:"Arial","sans-serif";color:#1f497=
d"><u></u>=C2=A0<u></u></span></p><div style=3D"border:none;border-left:sol=
id blue 1.5pt;padding:0in 0in 0in 4.0pt"><div><div style=3D"border:none;bor=
der-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class=3D"MsoNorma=
l"><b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
sans-serif"">From:</span></b><span style=3D"font-size:10.0pt;font-fami=
ly:"Tahoma","sans-serif""> Triumphs [mailto:<a href=3D"=
mailto:triumphs-bounces@autox.team.net"; target=3D"_blank">triumphs-bounces@=
autox.team.net</a>] <b>On Behalf Of </b>Geo Hahn<br><b>Sent:</b> Monday, Se=
ptember 07, 2015 11:53 AM<br><b>To:</b> Brad Kahler<br><b>Cc:</b> Triumphs<=
br><b>Subject:</b> Re: [TR] TR4 road draft tube plug<u></u><u></u></span></=
p></div></div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><div><div><div=
><p class=3D"MsoNormal">On Mon, Sep 7, 2015 at 10:08 AM, Brad Kahler <<a=
href=3D"mailto:bkahler1@gmail.com"; target=3D"_blank">bkahler1@gmail.com</a=
>> wrote:<u></u><u></u></p></div><div><p class=3D"MsoNormal"><u></u>=C2=
=A0<u></u></p></div><blockquote style=3D"border:none;border-left:solid #ccc=
ccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><di=
v><div><p class=3D"MsoNormal">...Also, is your valve cover cap vented (i.e.=
TR4A style) or non-vented?<u></u><u></u></p></div></div></blockquote><div>=
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNo=
rmal"><u></u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">Those terms=
(or something) confuse me.<u></u><u></u></p></div><div><p class=3D"MsoNorm=
al"><u></u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">My=C2=A0late =
TR4=C2=A0does not have a vented cap - it seals tight.=C2=A0 I presume that =
TR4As are similar.=C2=A0 Early TR4s and all TR3s=C2=A0had a cap that vents =
to the atmosphere.<u></u><u></u></p></div><div><p class=3D"MsoNormal"><u></=
u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">If you are fighting bl=
ow-by (and I think you are) it would seem that a vented cap might help -- a=
nd since your engine apparently has a road draft tube fitted as original th=
en I believe a vented cap would have also been on it.<u></u><u></u></p></di=
v><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div><div><p class=
=3D"MsoNormal">Geo<u></u><u></u></p></div></div></div></div></div>
<br><br>
<hr style=3D"border:none;color:#909090;background-color:#b0b0b0;min-height:=
1px;width:99%">
<table style=3D"border-collapse:collapse;border:none">
<tbody><tr>
<td style=3D"border:none;padding:0px 15px 0px 8px">
<a href=3D"https://www.avast.com/antivirus";
target=3D"_blank">
<img border=3D"0"
src=3D"http://static.avast.com/emails/avast-mail-stam=
p.png">
</a>
</td>
<td>
<p
style=3D"color:#3d4d5a;font-family:"Calibri","Verdana&=
quot;,"Arial","Helvetica";font-size:12pt">
This email has been checked for viruses by
Avast antivirus software.
<br><a href=3D"https://www.avast.com/antivirus";
target=3D"_blank">www.a=
vast.com</a>
</p>
</td>
</tr>
</tbody></table>
<br>
</div><br><br>
** <a href=3D"mailto:triumphs@autox.team.net";>triumphs@autox.team.net</a> *=
*<br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/archive"; rel=3D"noreferrer" target=
=3D"_blank">http://www.team.net/archive</a><br>
Forums: <a href=3D"http://www.team.net/forums"; rel=3D"noreferrer" target=3D=
"_blank">http://www.team.net/forums</a><br>
hs/bkahler1@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.te=
am.net/mailman/options/triumphs/bkahler1@gmail.com</a><br>
<br></blockquote></div><br></div></div></div>
--089e0111bb6a5df591051f30348f--
--===============2071180054125410025==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
** triumphs@autox.team.net **
Archive: http://www.team.net/archive
--===============2071180054125410025==--
|