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Is crankcase ventilation necessary?
Source of crankcase gases Excessive crankcase pressure can furthermore lead to engine oil leaks past the crankshaft seals and other engine seals and gaskets. Therefore, it becomes imperative that a crankcase ventilation system be used.
Where does the hose from the PCV valve go?
The Positive Crankcase Ventilation (PCV) valve hose is a hose running from the valve cover on the engine to either the intake air box or the intake manifold.
Can you drive without a crankcase breather hose?
its a breather hose. its an EPA requirement to burn ventilation vapors, but no you dont need it… plug it till you can get a replacement hose or catch can.
Where to plug PCV into the intake manifold?
What matters is that you plumb the fitting somewhere that will get a full vacuum signal at idle. If you have a manifold port available that is convenient to the PCV location on the valve cover, use that one. If not, use whatever port that is most convenient to the PCV valve and requires the least amount of plumbing.
Can a PCV vent back into the air?
The PCV should not vent to atmosphere, as it contains blow-by vapor with combustion products and aerosolized oil. This would end up as polution, if it were not reintroduced to the intake stream in order to provide a change to re-oxidize and further catalyze the HC components before releasing to the atmosphere.
Is there a way to vent to the intake?
You can also vent to intake through the use of pcv spacer below carb. I suspect you could also use a port directly into the intake, however I feel since this is usually a runner to a single cylinder that this is a poor second choice.
Where does the PCV go in a carburetor?
The standard method of venting w/ pcv is one bank of cylinders is vented to airfilter usually from the valve cover that has the oil fill tube. The other bank uses pcv to the base of the carburetor. You can also vent to intake through the use of pcv spacer below carb.