Evolved Member
more boost = more crank case pressure. Most people running big boost open up the size of the vents, or add another. just do a search.
Evolved Member
Quote:
Not correct. At idle there is vacuum in the intake manifold and the PCV valve is open to the valve cover. So, the manifold will pull air out of the crankcase and air in through the vent hose. When boosting the PCV valve closes and the air flow reverses in the vent hose.Originally Posted by apagan01
the hose in the front the one that comes connected to the intake from factory actually vents does not suck air, get you a catch can and recirculate the system.
Account Disabled
Quote:
i will agree with you i missrepresented my statement, regarding the vent hose going into the intake and its design.Originally Posted by barneyb
Not correct. At idle there is vacuum in the intake manifold and the PCV valve is open to the valve cover. So, the manifold will pull air out of the crankcase and air in through the vent hose. When boosting the PCV valve closes and the air flow reverses in the vent hose.
That clears things up a bit. Im going to check the pcv tonight and put my catch can back on. Thanks everyone!
Evolved Member
I periodically spray maf cleaner through my pcv valve. Cleans it right up.
Newbie
The PCV sometimes fails fairly quickly. I normally replace them about once a year or so. Much cheaper replacing PCV valves than the issues created by excessive crank case pressure.
If it's not the PCV, perhaps you do have a ring problem. I have seen it from new motors (mistakes were made).
If it's not the PCV, perhaps you do have a ring problem. I have seen it from new motors (mistakes were made).