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Good point on the TR3 engine. I have never rebuilt/overhauled a Triumph TR3=
engine so was not aware of the lack of valve seals. If we keep them long e=
nough I imagine I will become much more familiar with their design characte=
ristics. But Rye's smoking issue is interesting given the lack of valve sea=
ls. If the guides are badly worn the valves can vibrate side-to-side within=
the guide and may not seal at the valve seat. This can cause idle roughnes=
s at normal idle rpm. Attaching a vacuum gauge and then starting the cold e=
ngine, if the guides are bad you will, as you have said, probably see blue =
smoke and the vacuum gauge needle fluctuate from around 3" mercury, to appr=
oximately 7 inches of mercury but when the rpm's are increased, stabilize w=
ith a steady reading.
What are the chances that all the piston ring end gaps are too large and/or=
may have lined up?
I agree too that once the head is off the answer will be closer. In the TR3=
, is it possible to drop the pan and push a piston/rod assembly out the top=
? I assume that if the engine was rebuilt the cylinder sleeves were either =
replaced or any difference in circumference at the top of the existing cyli=
nder was removed. If this is possible it might be a lot easier than pulling=
the engine out again.
RandallS
wahneetr@gmail.com]
Sent: Saturday, October 17, 2015 3:45 PM
To: Reihing, Randall S.
Cc: triumphs@autox.team.net
Subject: Re: [TR] update - the mystery continues
No valve seals on a TR3 engine. Could be worn valve guides but in my exper=
ience those usually manifest themselves by allowing oil to seep into the cy=
linder when the engine is off and produce blue smoke briefly at start-up.
Once the head is off (and possibly the pistons examined) I expect the answe=
r will be more apparent.
Geo
On Sat, Oct 17, 2015 at 10:55 AM, Reihing, Randall S. <Randall.Reihing@utol=
The following is just my opinion and is only presented to see if it can hel=
p, not to criticize anyone.
I know the amount of smoke that can be generated because of worn valve seal=
s sounds a little difficult to believe...
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<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">Good point on the TR3 engine. I have never rebuilt/overhauled a Triu=
mph TR3 engine so was not aware of the lack of valve seals. If we keep them=
long enough I imagine I will become
much more familiar with their design characteristics. But Rye's smoking is=
sue is interesting given the lack of valve seals. If the guides are badly w=
orn the valves can vibrate side-to-side within the guide and may not seal a=
t the valve seat. This can cause
idle roughness at normal idle rpm. Attaching a vacuum gauge and then start=
ing the cold engine, if the guides are bad you will, as you have said, prob=
ably see blue smoke and the vacuum gauge needle fluctuate from around 3&quo=
t; mercury, to approximately 7 inches
of mercury but when the rpm's are increased, stabilize with a steady readi=
ng.
<div><br>
</div>
<div>What are the chances that all the piston ring end gaps are too large a=
nd/or may have lined up? </div>
<div><br>
</div>
<div>I agree too that once the head is off the answer will be closer. In th=
e TR3, is it possible to drop the pan and push a piston/rod assembly out th=
e top? I assume that if the engine was rebuilt the cylinder sleeves were ei=
ther replaced or any difference
in circumference at the top of the existing cylinder was removed. If this =
is possible it might be a lot easier than pulling the engine out again.&nbs=
p;</div>
<div><br>
</div>
<div>RandallS</div>
<div><br>
</div>
<div><br>
<div><span style=3D"font-size: small;"><br>
</span></div>
<div><span style=3D"font-size: small;">wahneetr@gmail.com]</span>
<div style=3D"font-family: Times New Roman; color: #000000; font-size: 16px=
">
<div id=3D"divRpF30638" style=3D"direction: ltr;"><font face=3D"Tahoma" siz=
e=3D"2" color=3D"#000000"><b>Sent:</b> Saturday, October 17, 2015 3:45 PM<b=
r>
<b>To:</b> Reihing, Randall S.<br>
<b>Cc:</b> triumphs@autox.team.net<br>
<b>Subject:</b> Re: [TR] update - the mystery continues<br>
</font><br>
</div>
<div></div>
<div>
<div dir=3D"ltr">
<div>No valve seals on a TR3 engine. Could be worn valve guides but i=
n my experience those usually manifest themselves by allowing oil to seep i=
nto the cylinder when the engine is off and produce blue smoke briefly at s=
tart-up.</div>
<div><br>
</div>
<div>Once the head is off (and possibly the pistons examined) I expect the =
answer will be more apparent.</div>
<div><br>
</div>
<div>Geo </div>
<div><br>
</div>
<div><br>
</div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Sat, Oct 17, 2015 at 10:55 AM, Reihing, Randa=
ll S. <span dir=3D"ltr">
<<a href=3D"mailto:Randall.Reihing@utoledo.edu"; target=3D"_blank">Randal=
l.Reihing@utoledo.edu</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex; paddin=
g-left:1ex; border-left-color:rgb(204,204,204); border-left-width:1px; bord=
er-left-style:solid">
<div>
<div style=3D"color:rgb(0,0,0); font-family:Tahoma; font-size:10pt; directi=
on:ltr">
The following is just my opinion and is only presented to see if it can hel=
p, not to criticize anyone.
<div><br>
</div>
<div>I know the amount of smoke that can be generated because of worn valve=
seals sounds a little difficult to believe...<br>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
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