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Crancase ventilation delete?

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    Crancase ventilation delete?

    Why not?

    It seems to be nothing but a glorified PCV valve..

    Would it do any good? I was thinking it might keep the head and intake manifold completely clean...maybe provide a better mixture since there is nothing but gas and air.
    Eta dude. 8-)

    #2
    Eliminating that system would compromise the integrity of all your oil seals .

    Really no need to do it ....especially on an Eta , leave it alone .

    E30 M3 / E30 325is / E34 525iT / E34 535i

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      #3
      The crankcase vent hose can be changed so as not to route oil vapors from the engine into the intake. This can help on a higher mileage engine where there's more blow-by from worn rings and/or cylinder bores. But it won't help if the cause of the oil is worn valve guides/seals (the usual cause).

      If you are going to do this, the connection from the engine needs to be routed into a catch can. And ideally the catch can needs to drain oil back into the sump.
      The car makes it possible, but the driver makes it happen.
      Jim Levie, Huntsville, AL

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