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I put many miles--well over 100K--on my Nock PCV setup before
upgrading. There was no sludge at all, and the head looked normal (I
expected some carbon buildup on the rear cylinders).<br>
<br>
<div class="moz-cite-prefix">On 4/27/2021 6:21 PM, Henry G Leach via
Healeys wrote:<br>
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This all sounds good, but I'm concerned about sludge build up...I
remember my '55 Ford with added rubber plug to the vent &
adapted PCV and takeoff on air cleaner. Under the rockers was a
gooey mess after some miles. I kinda like my Type 3 system as
original on my BJ Healey and the rocker shaft and rockers are
clean not a sticky mess. Sure it drips some oil from the bell, but
don't all us oldies drip something? Hank<br>
<br>
<p>-----------------------------------------</p>
From: "Roger Grace via Healeys" <healeys@autox.team.net><br>
To: "Harold Manifold"<br>
Cc: "Healey List"<br>
Sent: Tuesday April 27 2021 4:34:02PM<br>
Subject: Re: [Healeys] PCV valve installation<br>
<br>
<div dir="ltr">
<div>I am with Harold on this one. In theory, with substantial
vacuum holding in the CC you would not move any of the
accumulated
gasses and moisture from the CC. Would be interested to hear
if
anyone has actually measured the CC vacuum after the
plugging and
soldering of all the orifices ? Particularly at idle when
the
vacuum is high - what does the PCV valve regulate it to ? My
car is
about 17/18 ins Hg at idle. Would also be interesting to
look for
oil at the system vacuum inlet pipe after a few miles.<br>
</div>
<div>Just wondering...</div>
<div>rg</div>
<div><br>
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<div><br>
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<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Apr 27, 2021 at 8:42
AM
Harold Manifold via Healeys <<a moz-do-not-send="true">healeys@autox.team.net</a>>
wrote:<br>
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<p class="MsoNormal">The V in PCV is for ventilation.
There should
be a way for fresh air to get into the engine. In
addition to
creating a slight vacuum inside the engine ideally the
blow by
gases that accumulate in the bottom of the block and
contaminate
the engine oil should be replaced with clear air.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><img
style="width:5.2083in;height:2.9479in;"
src="/index.php/inbox/attachment/filenameOriginal/2324622E2F644F44A27CE63311F4D16B.jpg/filenamefs/INBOX4698843c3d3bff949b5be528d87e101625a0b"
alt="Foxbody PCV Valve Replacement – Fox Body
Project" moz-do-not-send="true" width="500"
height="283"></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Harold</p>
<p class="MsoNormal"> </p>
<div
style="border-color:rgb(225,225,225);border-style:solid
none none;border-width:1pt medium medium;padding:3pt
0in 0in;">
<p class="MsoNormal" style="border:medium
none;padding:0in;">
<b>From:</b> <a moz-do-not-send="true">Bob Begani
via Healeys</a><br>
<b>Sent:</b> Tuesday, April 27, 2021 6:06 AM<br>
<b>To:</b> <a moz-do-not-send="true">Bob Haskell</a>;
<a moz-do-not-send="true">Healey List</a><br>
<b>Subject:</b> Re: [Healeys] PCV valve installation</p>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Bob:</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Let me know how your installation
works with
the hole in the oil fill cap soldered. No doubt, the
rest of
the engine is has no breather inlets such as the valve
cover?
The reason I ask is I did not solder or seal the oil
fill cap and
my aluminum valve cover has a vent on the side into
which I
stuffed a piece of oiled 3m sanding pad. The reason
was that
in the early days of PCV valves on engines the car
makers were
creating a breather so fresh air could circulate in
the engine and
some articles indicated it was desirable to keep air
flowing to the
crankcase. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Maybe some of the other listeners
who have
been using a PVC system sealed could comment on the
operation. Currently on regular 25-mile drives at no
more
than 60 mph the drips under the bell housing weep hole
after the
ride are limited to a spot the size of a quarter in
the can
underneath. Next time travel on I-75 for 50 miles at
higher
speeds I will see if the amount of oil increases. If
it does
I may seal vent to see what happens.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Bob Begani</p>
<p class="MsoNormal"> </p>
<br>
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