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R-2 flap valve on bonnet

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  • Fuel System: R-2 flap valve on bonnet

    On a R-2 super charger bonnet how does the flapper valve work and is it located INSIDE the bonnet in a OPEN position when secured with the 2 screws ?

  • #2
    Yes, it is located inside the bonnet in the open position. A picture can be found at the following link about half way down. http://vs57.y-block.info/bonnets.htm

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    • #3
      The flapper is to vent accumulated fumes while the engine is off. Anything above idle the air flow from the supercharger closes it.
      Bez Auto Alchemy
      573-318-8948
      http://bezautoalchemy.com


      "Don't believe every internet quote" Abe Lincoln

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      • #4
        And, it should have a screen to help keep some of the crap out when setting open.

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