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How does it work?
The system is simple. The PCV valve regulates how much vacuum can pull
through the crankcase. It's hooked into the intake - when the vacuum is high
at idle, the PCV valve stops most of that vacuum. As vacuum drops with an
increase in RPM, The PCV valve opens, to allow a higher volume of gasses and
pressure to be pulled into the intake. As a result, those gasses are
recirculated back into the combustion cycle, and burnt off with the fresh
fuel and air, preventing those gasses from condensing in the oil, preventing
pressure from causing the seals to leak, and preventing pollution from
escaping the crankcase.
The breather tube allows fresh air to be pulled into the engine, after the
air filter, ensuring debris and moisture aren't pulled into the engine.
You can read the entire article: https://tinyurl.com/drx8m62w
Note the comment preventing pressure from causing the seals to leak.
Regarding the Breathing Tube which we do not have on our engines, in my
recently installed system I plugged the breather vent in my valve cover with
a solid piece of rubber, although as one listener indicated there is a small
opening on the valve cover cap. I will check how much is flowing through
this tiny hole so the engine breaths and circulates air the crankcase and if
it is acting as a breather tube. It maybe that the T on the top of the
Valve cover will need to be blocked?
Ideas? Comments?
Regards,
Bob Begani BJ8 late 67
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class=3DWordSection1><p =
style=3D'margin-top:0in;background:white'><strong><span =
style=3D'font-size:12.0pt;font-family:"Calibri",sans-serif;color:#212529'=
>How does it work?</span></strong><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:#212529'>&=
nbsp;<o:p></o:p></span></p><p =
style=3D'margin-top:0in;background:white;box-sizing: =
border-box;margin-bottom:1rem;font-variant-ligatures: =
normal;font-variant-caps: normal;orphans: 2;widows: =
2;-webkit-text-stroke-width: 0px;text-decoration-thickness: =
initial;text-decoration-style: initial;text-decoration-color: =
initial;word-spacing:0px'><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:#212529'>T=
he system is simple. The PCV valve regulates how much vacuum can pull =
through the crankcase. It’s hooked into the intake - when the =
vacuum is high at idle, the PCV valve stops most of that vacuum. As =
vacuum drops with an increase in RPM, The PCV valve opens, to allow a =
higher volume of gasses and pressure to be pulled into the intake. As a =
result, those gasses are recirculated back into the combustion cycle, =
and burnt off with the fresh fuel and air, preventing those gasses from =
condensing in the oil, preventing pressure from causing the seals to =
leak, and preventing pollution from escaping the =
crankcase.<o:p></o:p></span></p><p =
style=3D'margin-top:0in;background:white;box-sizing: =
border-box;margin-bottom:1rem;font-variant-ligatures: =
normal;font-variant-caps: normal;orphans: 2;widows: =
2;-webkit-text-stroke-width: 0px;text-decoration-thickness: =
initial;text-decoration-style: initial;text-decoration-color: =
initial;word-spacing:0px'><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:#212529'>T=
he breather tube allows fresh air to be pulled into the engine, after =
the air filter, ensuring debris and moisture aren’t pulled into =
the engine.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'>You can read =
the entire article: <a =
href=3D"https://tinyurl.com/drx8m62w";>https://tinyurl.com/drx8m62w</a><o:=
p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:=
p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'>Note the =
comment preventing pressure from causing the seals to leak. =
Regarding the Breathing Tube which we do not have on our engines, in my =
recently installed system I plugged the breather vent in my valve cover =
with a solid piece of rubber, although as one listener indicated there =
is a small opening on the valve cover cap. I will check how much =
is flowing through this tiny hole so the engine breaths and circulates =
air the crankcase and if it is acting as a breather tube. It maybe =
that the T on the top of the Valve cover will need to be =
blocked?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:=
p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'>Ideas? =
Comments?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:=
p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'>Regards,<o:p></=
o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:=
p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif'>Bob Begani BJ8 =
late 67<o:p></o:p></span></p></div></body></html>
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