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>From what I recall from my Smog Class days (I had a smog license to=0Are=
pair systems), this is the basic "Type 3" system. To upgrade=0A'50-'60s=
vehicles you punched a hole in the air cleaner (some oil=0Abath), added=
a fitting and hose, and plugged the downpipe tube from=0Athe crankcase=
with a rubber plug. It would then pass early emission=0Atests.=0AThis i=
s basicly like the Healey system which was sans a PVC valve, but=0Amet e=
arly standards...not today, however. Multiple carbs gave the=0AHealey an=
exemption in those days.=0AThe big problem with this system is engine w=
ear. When things like=0Arocker shafts or bushings wear, the oil gap is e=
nlarged allowing=0Ageysers to form in the valve cover, and then the oil=
gets sucked out=0Ato the air intake and sent out the exhaust. Folks tho=
ught the rings or=0Abearings had failed and started an engine rebuild, w=
hen only the=0Arocker shaft was the issue.=0AI tend to stick to original=
ity, and just drive my stinky old Healey,=0Awhich would never pass any s=
tandards nowadays. Hank=0A=0A=09----------------------------------------=
-From: "Harold Manifold" =0ATo: "Michael Salter", "Bob Spidell"=0ACc: he=
aleys@autox.team.net=0ASent: Sunday January 31 2021 10:23:00AM=0ASubject=
: Re: [Healeys] BN1 PCV system=0A=0A In my opinion providing a dedicated=
air intake and separating the=0Astreams is a step in right direction. T=
his sketch below is what I am=0Aplanning. One possible addition would be=
a simple air oil separator on=0Athe return line but I am hesitant to ad=
d too much strange looking=0Ahardware if it can be avoided. I would ap=
preciate any feedback and=0Acomments. Harold =0A=0A----------------=
---------=0AFROM: Healeys [mailto:healeys-bounces@autox.team.net] ON BEH=
ALF OF=0AMichael Salter=0ASENT: Sunday, January 31, 2021 9:41 AM=0ATO: B=
ob Spidell=0ACC: healeys@autox.team.net=0ASUBJECT: Re: [Healeys] BN1 PCV=
system=0A=0A I have decided to cut some "plugs" out of a chainsaw foam=
air filter=0Aand insert them into the rocker cover hose. I'm thinking t=
hat flow in=0Athat hose will be the source of intake air into the engine=
. =0A M =0A On Sat., Jan. 30, 2021, 8:45 p.m. Bob Spidell, wrote:=0A =
The best place for a fresh air source would be a small filter on the=0A=
oil=0A filter cap. Obviously, not an easy thing to rig up. Or, you could=
put=0Aa=0A tube on the backside of one of the carbs, but you'd want a b=
etter=0Afilter=0A than the stock grasshopper-stoppers.=0A=0A On 1/30/202=
1 3:48 PM, Harold Manifold wrote:=0A > I am also looking into a PCV syst=
em for my BT7 as well. Most of the=0APCV=0A > systems I have seen on Hea=
ley's don't have a filtered fresh air=0Aintake and=0A > don't have much=
ability to replace the blow by and other nasty's=0Athat will=0A > accum=
ulate in the bottom of the block. To have air changes in the=0Abottom of=
=0A > the block a filtered fresh air source is needed and slight vacuum=
=0Ato draw=0A > out anything that accumulates. Ideally the fresh air wou=
ld come in=0Aat one of=0A > the block and the bad air leave at the other=
end. There is a=0Aconnection=0A > between the tappet section and the bo=
ttom of the block but this is=0Aalso the=0A > oil return. (A BN1 engine=
may be different) A PCV can be used to=0Acontrol the=0A > system but if=
the air circulating bypasses most of the engine then=0Athe=0A > system=
is less effective. On V8 engines the clean air comes in=0Athrough one=
=0A > valve cover, passes through the bottom of the block and then exist=
s=0Avia the=0A > other valve cover drawn by vacuum from the intake.=0A >=
=0A > Any good ideas where to locate a filter fresh air source?=0A >=0A=
> This website has excellent information on PCV valves and is where I=
=0Afound=0A > the attached article by Tony Ball.=0A >=0A > [1]http://me=
wagner.com/ [2]=0A >=0A > Harold=0A >=0A >=0A >=0A > -----Original Messa=
ge-----=0A > From: Healeys [mailto:healeys-bounces@autox.team.net] On Be=
half Of=0ABob=0A > Spidell=0A > Sent: Saturday, January 30, 2021 2:41 PM=
=0A > To: healeys@autox.team.net=0A > Subject: Re: [Healeys] BN1 PCV sys=
tem=0A >=0A > Looks clean, Michael. I am considering similar for my BN2=
(but I=0Aplan to fab=0A > a plate with an elbow to replace the road dra=
ft tube). If you plug=0Athe valve=0A > cover vent, you'll have a 'system=
' similar to what I have on my=0ABJ8, which=0A > is an updated version o=
f the original Norman Nock design.=0A > This isn't really a PCV system,=
as the crankcase and valve cover=0Awill be=0A > under continuous vacuum=
. I suspect some air is drawn in from the=0Arear=0A > 'seal,' which is n=
ot filtered but helps to alleviate the infamous=0AHealey=0A > bellhousin=
g drip, and likely doesn't affect mixture all that much.=0AIf you=0A > l=
eave the vent open--I'd put an air filter on it--you'll have a=0Agenuine=
PCV=0A > system as air will be constantly circulated through the crankc=
ase=0Aand top=0A > end. This is what I plan to do, but my 100M is vented=
to the CAB,=0Afor which=0A > I have a large K&N filter on the intake du=
ct in front of the=0Aradiator.=0A >=0A > Which PCV valve did you select?=
=0A >=0A > Bob=0A >=0A >=0A >=0A > On 1/30/2021 12:20 PM, Michael Salter=
wrote:=0A >> After months of deliberation I have constructed this PCV s=
ystem=0Afor my=0A >> BN1.=0A >> The original road draft tube has been pl=
ugged just below the PCV=0Avalve=0A >> takeoff.=0A >> Of importance was=
that the system would be almost impossible to=0Asee=0A >> without very=
close inspection.=0A >> I'm still trying to decide if I should plug the=
normal valve cover=0A >> vent or leave it open to serve as the PCV syst=
em intake.=0A >> Thoughts?=0A >>=0A >> M=0A >>=0A >=0A=0A ______________=
_________________________________=0A Support Team.Net [3]http://www.tea=
m.net/donate.html [4]=0A Suggested annual donation $12.75=0A=0A Archive:=
[5]http://www.team.net/pipermail/healeys [6] =0A[7]http://autox.team.n=
et/archive [8]=0A=0AHealeys@autox.team.net=0A [9]http://autox.team.net/m=
ailman/listinfo/healeys [10]=0A=0A Unsubscribe/Manage: =0A[11]http://aut=
ox.team.net/mailman/options/healeys/michaelsalter@gmail.com=0A[12]=0A=0A=
=0A=0ALinks:=0A------=0A[1] http://mewagner.com/=0A[2] http://mewagner=
.com/=0A[3] http://www.team.net/donate.html=0A[4] http://www.team.net/do=
nate.html=0A[5] http://www.team.net/pipermail/healeys=0A[6] http://www.t=
eam.net/pipermail/healeys=0A[7] http://autox.team.net/archive=0A[8] http=
://autox.team.net/archive=0A[9] http://autox.team.net/mailman/listinfo/h=
ealeys=0A[10] http://autox.team.net/mailman/listinfo/healeys=0A[11]=0Aht=
tp://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com=0A[1=
2]=0Ahttp://autox.team.net/mailman/options/healeys/michaelsalter@gmail.c=
om=0A
--=_104053340a68829aed7273dd71d5ffee
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<html><body>From what I recall from my Smog Class days (I had a smog lic=
ense to repair systems), this is the basic "Type 3" system. To upgrade '=
50-'60s vehicles you punched a hole in the air cleaner (some oil bath),=
added a fitting and hose, and plugged the downpipe tube from the crankc=
ase with a rubber plug. It would then pass early emission tests.<div><br=
></div><div>This is basicly like the Healey system which was sans a PVC=
valve, but met early standards...not today, however. Multiple carbs gav=
e the Healey an exemption in those days.</div><div><br></div><div>The bi=
g problem with this system is engine wear. When things like rocker shaft=
s or bushings wear, the oil gap is enlarged allowing geysers to form in=
the valve cover, and then the oil gets sucked out to the air intake and=
sent out the exhaust. Folks thought the rings or bearings had failed an=
d started an engine rebuild, when only the rocker shaft was the issue.</=
div><div><br></div><div>I tend to stick to originality, and just drive m=
y stinky old Healey, which would never pass any standards nowadays. Hank=
<br><br><div class=3D"reply-new-signature"></div><p>--------------------=
---------------------</p>From: "Harold Manifold" <manifold@telus.net><br=
>To: "Michael Salter", "Bob Spidell"<br>Cc: healeys@autox.team.net<br>Se=
nt: Sunday January 31 2021 10:23:00AM<br>Subject: Re: [Healeys] BN1 PCV=
system<br><br>=0A<div dir=3D"ltr" align=3D"left"><span class=3D"7181503=
18-31012021"><font color=3D"#0000FF" size=3D"2" face=3D"Arial">In=0Amy o=
pinion providing a dedicated air intake and=0Aseparating the s=
treams is a step in right direction. This sketch=0Abelow is what I am pl=
anning. One possible addition would be a=0Asimple air oil separator on t=
he return line but I am hesitant=0Ato add too much strange looking=
hardware if it can be=0Aavoided.</font></span></div>=0A<div dir=3D"ltr"=
align=3D"left"> </div>=0A<div dir=3D"ltr" align=3D"left"><span cla=
ss=3D"718150318-31012021"><font color=3D"#0000FF" size=3D"2" face=3D"Ari=
al">I=0Awould appreciate any feedback and comments.</font></span></div>=
=0A<div dir=3D"ltr" align=3D"left"> </div>=0A<div dir=3D"ltr" align=
=3D"left"><span class=3D"718150318-31012021"><font color=3D"#0000FF" siz=
e=3D"2" face=3D"Arial">Harold</font></span></div>=0A<div dir=3D"ltr" ali=
gn=3D"left"> </div>=0A<div dir=3D"ltr" align=3D"left"><span class=
=3D"718150318-31012021"><img border=3D"0" hspace=3D"0" alt=3D"" src=3D"/=
index.php/inbox/attachment/filenameOriginal/Possible%20PCV%20System.JPG.=
jpg/filenamefs/INBOX44952b2b340d571f75e68368c0eee53efc7b0"></span></div>=
=0A<br><div lang=3D"en-us" class=3D"OutlookMessageHeader" dir=3D"ltr" al=
ign=3D"left">=0A<hr><font size=3D"2" face=3D"Tahoma"><b>From:</b> Healey=
s=0A[mailto:healeys-bounces@autox.team.net] <b>On Behalf Of</b> Michael=
=0ASalter<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>=0A<div>I have decided to=
cut some "plugs" out of a chainsaw foam air=0Afilter and insert them in=
to the rocker cover hose. I'm thinking=0Athat flow in that hose will be=
the source of intake air into the=0Aengine.=0A<div><br></div>=0A<div>M<=
/div>=0A</div>=0A<br><div class=3D"gmail_quote">=0A<div class=3D"gmail_a=
ttr" dir=3D"ltr">On Sat., Jan. 30, 2021, 8:45 p.m.=0ABob Spidell, <<a=
>bspidell@comcast.net</a>>=0Awrote:<br></div>=0A<blockquote class=3D"=
gmail_quote" style=3D"padding-left:1ex;border-left:#ccc 1px solid;margin=
:0px 0px 0px .8ex;">=0AThe best place for a fresh air source would be a=
small filter on=0Athe oil<br>=0Afilter cap. Obviously, not an easy thin=
g to rig up. Or, you could=0Aput a<br>=0Atube on the backside of one of=
the carbs, but you'd want a better=0Afilter<br>=0Athan the stock grassh=
opper-stoppers.<br><br>=0AOn 1/30/2021 3:48 PM, Harold Manifold wrote:<b=
r>=0A> I am also looking into a PCV system for my BT7 as well. Most=
=0Aof the PCV<br>=0A> systems I have seen on Healey's don't have a fi=
ltered fresh=0Aair intake and<br>=0A> don't have much ability to repl=
ace the blow by and other=0Anasty's that will<br>=0A> accumulate in t=
he bottom of the block. To have air changes in=0Athe bottom of<br>=0A>=
; the block a filtered fresh air source is needed and slight=0Avacuum to=
draw<br>=0A> out anything that accumulates. Ideally the fresh air wo=
uld=0Acome in at one of<br>=0A> the block and the bad air leave at th=
e other end. There is a=0Aconnection<br>=0A> between the tappet secti=
on and the bottom of the block but=0Athis is also the<br>=0A> oil ret=
urn. (A BN1 engine may be different) A PCV can be used=0Ato control the<=
br>=0A> system but if the air circulating bypasses most of the engine=
=0Athen the<br>=0A> system is less effective. On V8 engines the clean=
air comes in=0Athrough one<br>=0A> valve cover, passes through the b=
ottom of the block and then=0Aexists via the<br>=0A> other valve cove=
r drawn by vacuum from the intake.<br>=0A><br>=0A> Any good ideas=
where to locate a filter fresh air source?<br>=0A><br>=0A> This w=
ebsite has excellent information on PCV valves and is=0Awhere I found<br=
>=0A> the attached article by Tony Ball.<br>=0A><br>=0A> <a hre=
f=3D"http://mewagner.com/";></a><a href=3D"http://mewagner.com/";>http://m=
ewagner.com/</a><br>=0A><br>=0A> Harold<br>=0A><br>=0A><br>=
=0A><br>=0A> -----Original Message-----<br>=0A> From: Healeys [=
mailto:<a>healeys-bounces@autox.team.net</a>] On Behalf Of Bob<br>=0A>=
; Spidell<br>=0A> Sent: Saturday, January 30, 2021 2:41 PM<br>=0A>=
To: <a>healeys@autox.team.net</a><br>=0A> Subject: Re: [Healeys] BN1=
PCV system<br>=0A><br>=0A> Looks clean, Michael. I am considering=
similar for my BN2 (but=0AI plan to fab<br>=0A> a plate with an elbo=
w to replace the road draft tube). If you=0Aplug the valve<br>=0A> co=
ver vent, you'll have a 'system' similar to what I have on=0Amy BJ8, whi=
ch<br>=0A> is an updated version of the original Norman Nock design.<=
br>=0A> This isn't really a PCV system, as the crankcase and valve=0A=
cover will be<br>=0A> under continuous vacuum. I suspect some air is=
drawn in from=0Athe rear<br>=0A> 'seal,' which is not filtered but h=
elps to alleviate the=0Ainfamous Healey<br>=0A> bellhousing drip, and=
likely doesn't affect mixture all that=0Amuch. If you<br>=0A> leave=
the vent open--I'd put an air filter on it--you'll have=0Aa genuine PCV=
<br>=0A> system as air will be constantly circulated through the=0Acr=
ankcase and top<br>=0A> end. This is what I plan to do, but my 100M i=
s vented to the=0ACAB, for which<br>=0A> I have a large K&N filte=
r on the intake duct in front of=0Athe radiator.<br>=0A><br>=0A> W=
hich PCV valve did you select?<br>=0A><br>=0A> Bob<br>=0A><br>=
=0A><br>=0A><br>=0A> On 1/30/2021 12:20 PM, Michael Salter wrot=
e:<br>=0A>> After months of deliberation I have constructed this P=
CV=0Asystem for my<br>=0A>> BN1.<br>=0A>> The original road=
draft tube has been plugged just below=0Athe PCV valve<br>=0A>> t=
akeoff.<br>=0A>> Of importance was that the system would be almost=
=0Aimpossible to see<br>=0A>> without very close inspection.<br>=
=0A>> I'm still trying to decide if I should plug the normal=0Aval=
ve cover<br>=0A>> vent or leave it open to serve as the PCV system=
=0Aintake.<br>=0A>> Thoughts?<br>=0A>><br>=0A>> M<br>=
=0A>><br>=0A><br><br>=0A_______________________________________=
________<br>=0ASupport Team.Net <a href=3D"http://www.team.net/donate.ht=
ml"></a><a href=3D"http://www.team.net/donate.html";>http://www.team.net/=
donate.html</a><br>=0ASuggested annual donation $12.75<br><br>=0AA=
rchive: <a href=3D"http://www.team.net/pipermail/healeys";></a><a href=3D=
"http://www.team.net/pipermail/healeys";>http://www.team.net/pipermail/he=
aleys</a> <a href=3D"http://autox.team.net/archive";></a><a href=3D"http:=
//autox.team.net/archive">http://autox.team.net/archive</a><br><br><a>He=
aleys@autox.team.net</a><br><a href=3D"http://autox.team.net/mailman/lis=
tinfo/healeys"></a><a href=3D"http://autox.team.net/mailman/listinfo/hea=
leys">http://autox.team.net/mailman/listinfo/healeys</a><br><br>=0AUnsub=
scribe/Manage: <a href=3D"http://autox.team.net/mailman/options/healeys/=
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tions/healeys/michaelsalter@gmail.com">http://autox.team.net/mailman/opt=
ions/healeys/michaelsalter@gmail.com</a><br><br></blockquote>=0A</div>=
=0A</manifold@telus.net></div></body></html>
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