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2.3 litre exhaust flapper

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  • 2.3 litre exhaust flapper

    I was doing some reading and noticed that I should have one of these. I brought the exhaust pipe to the bench and noticed all that is there is the shaft.
    My questions are what purpose does it serve, do I need it and how would the engine run without one.
    I'm curious on my last question because I had trouble getting the engine to idle below 900 rpm and was thinking it might be something with backpressure. This is my first inboard boat so please excuse my noobness 😊

  • #2
    it is there to prevent hydro-locking should your motor ever run-on (common problem) or you back up quickly
    Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

    1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

    Past Boats
    1970 Wooster Hellion - Merc 9.8
    2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
    1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

    What’s behind you doesn’t matter.Enzo Ferrari


    • #3
      Sign up today
      Oh ok makes sense thank you.