misty vapors coming out of pcv breather
01-20-2008, 05:07 PM
#1
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misty vapors coming out of pcv breather i was tinkering today, and now i have a question about some "misty" vapors coming out of my pvc breather on my catchcan...
i was letting the car warm up with the hood open, and i noticed the vapors coming out pretty good. any ideas what they are? are they bad or am i just paranoid?
i have never had this happen before until now, but my current pcv setup is as follows:
One line from the rear valve cover, along with another line from the passenger front valvecover both go into a catchcan, and the catchcan is then vented to the atmosphere via a breather.
i then have one line going from the rear valvecover port to the intake manifold, which has a one way valve to block it off under boost.
any help is appreciated!! thanks!
i was letting the car warm up with the hood open, and i noticed the vapors coming out pretty good. any ideas what they are? are they bad or am i just paranoid?
i have never had this happen before until now, but my current pcv setup is as follows:
One line from the rear valve cover, along with another line from the passenger front valvecover both go into a catchcan, and the catchcan is then vented to the atmosphere via a breather.
i then have one line going from the rear valvecover port to the intake manifold, which has a one way valve to block it off under boost.
any help is appreciated!! thanks!
01-22-2008, 09:35 PM
#4
your catch can should not be vented.
in fact you should just hook up the driver side only
to the pcv and call it a day.
the driver side valve cover has baffling and
the passenger side does not and this is most likely
why oil can be consumed at a higher than normal
rate with the LSX.
after having dual breathers for a while i notice a bit of blow by
coming from the crank case and i still burned a bit of oil.
i reconnected the PCV at the driver side only and noticed a drop
in my oil consumption.
the PCV system creates negative crank case pressure
which is good for ring seal.
in fact you should just hook up the driver side only
to the pcv and call it a day.
the driver side valve cover has baffling and
the passenger side does not and this is most likely
why oil can be consumed at a higher than normal
rate with the LSX.
after having dual breathers for a while i notice a bit of blow by
coming from the crank case and i still burned a bit of oil.
i reconnected the PCV at the driver side only and noticed a drop
in my oil consumption.
the PCV system creates negative crank case pressure
which is good for ring seal.
01-22-2008, 10:39 PM
#5
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oh man.... i was under the impression the crankcase needed to be vented under boost, no? that is the reason for the catchcan and the breather. so then is my setup incorrect? it still gets vacuum at idle, just not under boost.
