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<DIV dir=ltr align=left><SPAN class=718150318-31012021><FONT color=#0000ff
size=2 face=Arial>In my opinion providing a dedicated air intake and
separating the streams is a step in right direction. This sketch below is what I
am planning. One possible addition would be a simple air oil separator on the
return line but I am hesitant to add too much strange looking hardware if
it can be avoided.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=718150318-31012021><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=718150318-31012021><FONT color=#0000ff
size=2 face=Arial>I would appreciate any feedback and
comments.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=718150318-31012021><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=718150318-31012021><FONT color=#0000ff
size=2 face=Arial>Harold</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=718150318-31012021><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=718150318-31012021><IMG border=0 hspace=0
alt="" src="cid:718150318@31012021-2C47" align=baseline></SPAN></DIV><BR>
<DIV lang=en-us class=OutlookMessageHeader dir=ltr align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> Healeys
[mailto:healeys-bounces@autox.team.net] <B>On Behalf Of </B>Michael
Salter<BR><B>Sent:</B> Sunday, January 31, 2021 9:41 AM<BR><B>To:</B> Bob
Spidell<BR><B>Cc:</B> healeys@autox.team.net<BR><B>Subject:</B> Re: [Healeys]
BN1 PCV system<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>I have decided to cut some "plugs" out of a chainsaw foam air filter and
insert them into the rocker cover hose. I'm thinking that flow in that hose will
be the source of intake air into the engine.
<DIV><BR></DIV>
<DIV>M</DIV></DIV><BR>
<DIV class=gmail_quote>
<DIV class=gmail_attr dir=ltr>On Sat., Jan. 30, 2021, 8:45 p.m. Bob Spidell,
<<A href="mailto:bspidell@comcast.net">bspidell@comcast.net</A>>
wrote:<BR></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex">The
best place for a fresh air source would be a small filter on the oil
<BR>filter cap. Obviously, not an easy thing to rig up. Or, you could put a
<BR>tube on the backside of one of the carbs, but you'd want a better filter
<BR>than the stock grasshopper-stoppers.<BR><BR>On 1/30/2021 3:48 PM, Harold
Manifold wrote:<BR>> I am also looking into a PCV system for my BT7 as
well. Most of the PCV<BR>> systems I have seen on Healey's don't have a
filtered fresh air intake and<BR>> don't have much ability to replace the
blow by and other nasty's that will<BR>> accumulate in the bottom of the
block. To have air changes in the bottom of<BR>> the block a filtered fresh
air source is needed and slight vacuum to draw<BR>> out anything that
accumulates. Ideally the fresh air would come in at one of<BR>> the block
and the bad air leave at the other end. There is a connection<BR>> between
the tappet section and the bottom of the block but this is also the<BR>>
oil return. (A BN1 engine may be different) A PCV can be used to control
the<BR>> system but if the air circulating bypasses most of the engine then
the<BR>> system is less effective. On V8 engines the clean air comes in
through one<BR>> valve cover, passes through the bottom of the block and
then exists via the<BR>> other valve cover drawn by vacuum from the
intake.<BR>><BR>> Any good ideas where to locate a filter fresh air
source?<BR>><BR>> This website has excellent information on PCV valves
and is where I found<BR>> the attached article by Tony
Ball.<BR>><BR>> <A href="http://mewagner.com/"
rel="noreferrer noreferrer"
target=_blank>http://mewagner.com/</A><BR>><BR>>
Harold<BR>><BR>><BR>><BR>> -----Original Message-----<BR>>
From: Healeys [mailto:<A href="mailto:healeys-bounces@autox.team.net"
rel=noreferrer target=_blank>healeys-bounces@autox.team.net</A>] On Behalf Of
Bob<BR>> Spidell<BR>> Sent: Saturday, January 30, 2021 2:41 PM<BR>>
To: <A href="mailto:healeys@autox.team.net" rel=noreferrer
target=_blank>healeys@autox.team.net</A><BR>> Subject: Re: [Healeys] BN1
PCV system<BR>><BR>> Looks clean, Michael. I am considering similar for
my BN2 (but I plan to fab<BR>> a plate with an elbow to replace the road
draft tube). If you plug the valve<BR>> cover vent, you'll have a 'system'
similar to what I have on my BJ8, which<BR>> is an updated version of the
original Norman Nock design.<BR>> This isn't really a PCV system, as the
crankcase and valve cover will be<BR>> under continuous vacuum. I suspect
some air is drawn in from the rear<BR>> 'seal,' which is not filtered but
helps to alleviate the infamous Healey<BR>> bellhousing drip, and likely
doesn't affect mixture all that much. If you<BR>> leave the vent open--I'd
put an air filter on it--you'll have a genuine PCV<BR>> system as air will
be constantly circulated through the crankcase and top<BR>> end. This is
what I plan to do, but my 100M is vented to the CAB, for which<BR>> I have
a large K&N filter on the intake duct in front of the
radiator.<BR>><BR>> Which PCV valve did you select?<BR>><BR>>
Bob<BR>><BR>><BR>><BR>> On 1/30/2021 12:20 PM, Michael Salter
wrote:<BR>>> After months of deliberation I have constructed this PCV
system for my<BR>>> BN1.<BR>>> The original road draft tube has
been plugged just below the PCV valve<BR>>> takeoff.<BR>>> Of
importance was that the system would be almost impossible to see<BR>>>
without very close inspection.<BR>>> I'm still trying to decide if I
should plug the normal valve cover<BR>>> vent or leave it open to serve
as the PCV system intake.<BR>>> Thoughts?<BR>>><BR>>>
M<BR>>><BR>><BR><BR>_______________________________________________<BR>Support
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