<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>If u have a pcv installed as per the Nock s version. What are the negatives? will it suck oil into the intake? Could there be too much vacuum and harm seals gaskets etc. ?? Mitch. 66 bj8<br><br>Sent from my iPhone</div><div><br>On Jul 8, 2015, at 2:36 AM, Oudesluys <<a href="mailto:coudesluijs@chello.nl">coudesluijs@chello.nl</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<div class="moz-cite-prefix">6 quarts over 4000mls does not sound to
bad for an old design British engine. It also depends how the
rebuild was done.<br>
The main reasons for oil consumption, apart from leaking, are wear
of bores/pistons/rings, valve guide wear and blocked/dirty crank
case breathing system.<br>
Check and clean the crankcase ventilation system first. Check for
wear in the valve guides. Check the compression with a hot engine.
<br>
That the engine was professionally rebuild does not mean anything,
it depends who has done the job. It is also peculiar that after a
rebuild a few years ago, a ring job was needed not so long
ago!!!!!?????<br>
<br>
Kees Oudesluijs<br>
<br>
It is very unlikely that the air filters have something to do with
the oil consumption. There is no vacuum to speak of created there,
unless they are totally blocked or are absolutely tiny. <br>
<br>
^<a href="mailto:qwarthodson@aol.com">qwarthodson@aol.com</a> schreef op 8-7-2015 om 1:55:<br>
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<blockquote cite="mid:14e6af290e3-de4-413c4@webprd-m69.mail.aol.com" type="cite">
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<div class="MsoNormal">A friend ask me to post the following
question about excess oil consumption on this forum to see if
anyone has any suggestions.</div>
<div class="MsoNormal">I know the engine has been professionally
rebuilt a few years ago & the compression & leak down
tests recently looked "normal". No oil leaks. </div>
<div class="MsoNormal">Thanks,</div>
<div class="MsoNormal">Gary Hodson</div>
<div class="MsoNormal"> </div>
<div class="MsoNormal">I had a brief conversation with my mechanic
the other day and in the next couple of weeks he will do a
complete diagnosis on my Healey to try to identify why I have
had so much oil consumption. FYI, I just emptied the 6<sup>th</sup>
quart of oil into the engine yesterday – and that is over 4,000
miles. It is better than before the recent ring job, but
nonetheless, is not acceptable to me.</div>
<div class="MsoNormal"> </div>
<div class="MsoNormal">Mechanic thinks the oil loss might be due
to combustion of the oil from the back air cleaner that is
plumbed with the valve cover. He thinks the air cleaner I have
on it now is somehow creating a vacuum pulling oil from
the valve cover and injecting it back into the piston and is
actually burning the oil off very efficiently. I still don’t
have any signs of leaks beneath the car nor any smoke from the
tailpipe. Quite possibly the current Cooper air cleaners are
too small and are creating this vacuum. The Cooper air cleaners
replaced some other chrome air cleaners the original owner had
on the car – I don’t know if it was original equipment.</div>
<div class="MsoNormal"> </div>
<div class="MsoNormal">Will you do me a favor and see if anyone
else had a similar issue with oil consumption to identify a
“solution” that worked for them? Maybe there are other thoughts
that we should ask my mechanic to examine as well.</div>
<div class="MsoNormal"> </div>
<br>
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