is a pcv valve necessary?
473990
The PCV valve is necessary to prevent the gasses from going backwards out the breather when there is no vacuum. As others said you could go without it but you'll spew these very bad gasses, even into the passenger compartment. There is no loss in performance with a properly running PCV.
898239
With all PCV Oil Catch Cans, the "in" port is always connected to the Positive Crankcase Valve. This is where the dirty air exits the engine and goes into the intake manifold to recirculate back into the engine. ... With a Single Valve PCV Oil Catch can the "out" valve generally goes to the intake manifold.
948022
If you need to drive a couple miles to get the parts needed then plug the vacuum side of PCV line and it may be okay to drive a short distance since running longer than this may cause the pressure to build up in the crankcase and cause oil leaks and engine will run lean or rich without a properly functioning PCV system ...
512273
The Suction Control Valve (SCV) is responsible for controlling fuel pressure in common rail engines. They move via a solenoid with each small incremental variation of the throttle. The Suction Control Valve uses extremely fine tolerances within their moving parts.
1379318
PCV valves should not allow oil into the intake. Improper PCV system designs, no seperators/ catch cans, or a stuck valve will. OP replace the valve. It is either stuck closed or has a bad seal.
1350977
Corzan CPVC piping does not require protective paint; however, other types of CPVC might. ... If paint is recommended or necessary (e.g. for indicating cooling water lines) use only acrylic latex paint with Corzan CPVC. Due to compatibility concerns, oil-based paint or two-part epoxy paint should never be used.
1037567
Too much air flowing into the intake causes the engine to lean out [too much air in relation to the fuel] and misfire. At an idle, the PCV valve restricts air flow, to reduce this problem. At high manifold vacuum [idle], a spring loaded valve is drawn up and partially restricts flow to the crankcase.
310533
A PCV valve helps keep a constant pressure within the engine block by releasing oil fumes when they get to a certain pressure and sending them into the fuel system to be reburned with the gas. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders.
1176969
Yes, a catch-can on a NA engine will catch crap from crankcase venting. But, a functioning PCV system should allow "clean" burning of these vapors without any ill affects. We are not talking about a lot of oil/vapors being consumed per engine revolution to cause any concern.
627747
Yes! Shower rough in valves without stops are by far the most common. They work absolutely as well in every way.
1450935
Air Admittance Valves (AAV) are one-way vents installed after the trap on the drain line of a fixture. ... Failure to bring air back into the pipes can result in a vacuum (causing slow draining and gurgling), or even the siphoning of water out of traps (allowing sewer gases to enter the home through drain openings).
650671
PCV Valve Replacement Cost The average replacement cost for a PCV valve is anywhere from $35 to $75. The part itself only costs around $10 or $15. If you know how to replace the valve yourself, you could cut out the labor costs altogether and only pay $10 or $15 for the replacement.
1108953
NOT for compressed air or gasses. 0 (zero) PSI • PVC DWV is NOT a pressure-rated piping system. Recommended test is 10 feet of hydrostatic pressure, which equals 4.3 PSI.
862195
Pressure Independent Control Valves (PICV) can help reduce energy costs and increase occupant comfort in heating and cooling coil applications in buildings. ... The diaphragm reacts to the system and regulates the pressure differential across the actuated control valve orifice to maintain its flow rate.
1055083
Much of the time, MVP doesn't cause any problems. Rarely, blood can leak the wrong way through the floppy valve. This can lead to palpitations, shortness of breath, chest pain, and other symptoms.
582002
Normally the gate valves are reduced port, but you need to specifier if you need full-port or full-bore. The Api 600 gives the range of flow pass, this is between reduced to full port. In your situation if your supplier warrantie that yours gate valves are full port is a good option.
886576
when you do the 'pcv delete' it just blocks the front outlet, rerouting it to the rear only. but if you're concerning about 'the oil getting into your intake manifold and valves, causing carbon build up', you should go for the catch can.