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What's Inside Your Crankcase Vent Valve

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    What's Inside Your Crankcase Vent Valve

    Show us yours ?







    #2
    I just changed mine. Might still be in the garage trash. Didn't seem all that grimey tbh.

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      #3
      Nothing

      Click image for larger version

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      Attached Files

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        #4
        I have a new one ready to go, but given the price of these things nowadays, are they "cleanable"? If so, what is the proper method? Maybe I clean my old one up and shelve it.

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          #5
          Originally posted by Ryan_R View Post
          Nothing

          Click image for larger version

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          Nice setup! Did you tap the valve cover for an AN fitting?

          What coils are those?

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            #6
            Thanks.
            I had the valve cover milled and welded to fit the Bosch coils. They are the Audi R8 coils. They come on a bunch of different VW cars. I went with those because they have the igniter built into the coil.

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              #7
              I think my blocked vent valve, was causing an oil leak from the timing chain tensioner and oil fill cap. Probably elsewhere too!

              Please share around and spread the word, to clean out the vent valve

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                #8
                I replaced mine just a few weeks ago when I did my VCG, but I had bought the thing years ago when they were cheaper.
                3.91 | CMP Subframe & RTAB Bushings | SMG (Relocated & Rebuilt) | ESS Gen 3 Supercharger | Redish | Beisan | GC Coilovers & ARCAs | Imola Interior | RE Rasp | RE Diablo | Storm Motorwerks Paddles | Will ZCPM3 Shift Knob | Apex ARC-8 19x9, 19x9.5 | Sony XAV-AX5000 | BAVSOUND | CSL & 255 SMG Upgrades | Tiag | Vert w/Hardtop

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                  #9
                  Originally posted by Ryan_R View Post
                  Thanks.
                  I had the valve cover milled and welded to fit the Bosch coils. They are the Audi R8 coils. They come on a bunch of different VW cars. I went with those because they have the igniter built into the coil.
                  Nice wiring harness !
                  If you did it yourself, you did a hell of a job.

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                    #10
                    Originally posted by Bebop View Post

                    Nice wiring harness !
                    If you did it yourself, you did a hell of a job.
                    Harness was done by me. Appreciate that.
                    The engine harness was easy in comparison to the chassis harness. That one took about 3 times as long.

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                      #11
                      Originally posted by Ryan_R View Post

                      Harness was done by me. Appreciate that.
                      The engine harness was easy in comparison to the chassis harness. That one took about 3 times as long.
                      Proper Planning Prevents Piss Poor Performance.
                      Wiring is more than 50% planning, execution is the easy part.
                      Seems that you got both covered 😎
                      Last edited by Bebop; 09-11-2025, 04:40 AM.

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