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What is meant by "Engine uses a lot of oil?"=C2=A0 These things are notori=
ous for using a lot of oil.=C2=A0 The factory once said that a quart every =
600 miles is "normal."=C2=A0 But that was probably an effort to get out of =
some warranty work.=C2=A0=20
I seem to recall that a puff of blue smoke on acceleration was blow-by, (i.=
e. rings)
I rebuilt a TR6 engine that ran great but lost a quart every 300 miles.=C2=
=A0 A co-worker who used to work for TRW in the piston ring department said=
that I may have installed the rings upside down.=C2=A0 He said they were n=
ot symmetrical and applied more pressure on the bottom edge to better scrap=
e any oil on the cylinder walls to reduce consumption.=C2=A0=20
I bought a used engine to drive while I rebuilt this one.=C2=A0 This used e=
ngine is still in the car 30 years later (I never rebuilt that engine) and =
looses a quart every 1300 miles or so.=C2=A0 Some times it is best to leave=
well enough alone.
=20
Dave=20
=20
=20
-----Original Message-----
From: dave <dave@ranteer.com>
To: triumphs@autox.team.net
Sent: Thu, Nov 11, 2021 8:56 am
Subject: [TR] TR6 issue
<!--#yiv3123217294 _filtered {} _filtered {}#yiv3123217294 #yiv3123217294 p=
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294 div.yiv3123217294WordSection1 {}-->I have a friend who has a 74 TR6.=C2=
=A0 Recent rebuild of the engine both top and bottom.=C2=A0 We are a little=
suspicious of the machine shop that did the head.=C2=A0 The bottom end was=
done a year later by a different machinist. =C2=A0All pollution stuff is g=
one. =C2=A0Compression across all 6 cylinders is within a couple PSI =C2=A0=
Leakdown test was a small % on all cylinders =C2=A0Engine uses a lot of oil=
and there is a blue puff when he accelerates or engine brakes =C2=A0We thi=
nk its likely the valve guides are leaking. =C2=A0What do you think?** triu=
mphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archiv=
e
sey@cs.com
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<div style="color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size="3">What is meant by "Engine uses a lot of oil?" These
things are notorious for using a lot of oil. The factory once said that a
quart every 600 miles is "normal." But that was probably an effort to get
out of some warranty work. <br>
</font></div>
<div><font size="3"><br>
</font></div>
<div><font size="3">I seem to recall that a puff of blue smoke on acceleration
was blow-by, (i.e. rings)<br>
</font></div>
<div><font size="3"><br>
</font></div>
<div><font size="3">I rebuilt a TR6 engine that ran great but lost a quart
every 300 miles. A co-worker who used to work for TRW in the piston ring
department said that I may have installed the rings upside down. He said
they were not symmetrical and applied more pressure on the bottom edge to
better scrape any oil on the cylinder walls to reduce consumption. <br>
</font></div>
<div><font size="3"><br>
</font></div>
<div><font size="3">I bought a used engine to drive while I rebuilt this
one. This used engine is still in the car 30 years later (I never rebuilt
that engine) and looses a quart every 1300 miles or so. Some times it is
best to leave well enough alone.<br>
</font></div>
<div> <br>
</div>
<div style="clear:both"><font size="4">Dave </font><br>
<br>
</div>
<div> <br>
</div>
<div> <br>
</div>
<div style="font-family:arial,helvetica;font-size:10pt;color:black"><font
size="2">-----Original Message-----<br>
From: dave <dave@ranteer.com><br>
To: triumphs@autox.team.net<br>
Sent: Thu, Nov 11, 2021 8:56 am<br>
Subject: [TR] TR6 issue<br>
<br>
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<div>
<div class="yiv3123217294WordSection1">
<div class="yiv3123217294MsoNormal">I have a friend who has a 74 TR6.
Recent rebuild of the engine both top and bottom. We are a little
suspicious of the machine shop that did the head. The bottom end was done
a year later by a different machinist.</div>
<div class="yiv3123217294MsoNormal"> </div>
<div class="yiv3123217294MsoNormal">All pollution stuff is gone.</div>
<div class="yiv3123217294MsoNormal"> </div>
<div class="yiv3123217294MsoNormal">Compression across all 6 cylinders is
within a couple PSI</div>
<div class="yiv3123217294MsoNormal"> </div>
<div class="yiv3123217294MsoNormal">Leakdown test was a small % on all
cylinders</div>
<div class="yiv3123217294MsoNormal"> </div>
<div class="yiv3123217294MsoNormal">Engine uses a lot of oil and there is a
blue puff when he accelerates or engine brakes</div>
<div class="yiv3123217294MsoNormal"> </div>
<div class="yiv3123217294MsoNormal">We think its likely the valve guides are
leaking.</div>
<div class="yiv3123217294MsoNormal"> </div>
<div class="yiv3123217294MsoNormal">What do you think?</div>
</div>
</div>
</div>
** <a ymailto="mailto:triumphs@autox.team.net";
href="mailto:triumphs@autox.team.net";>triumphs@autox.team.net</a> **<br>
<br>
Archive: <a href="http://www.team.net/pipermail/triumphs";
target="_blank">http://www.team.net/pipermail/triumphs </a> <a
href="http://www.team.net/archive";
target="_blank">http://www.team.net/archive</a><br>
<br>
</font></div>
</div>
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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