How do you remove 8.1 flame arrestor?

Discussion in 'Gas Engines/Drives/Transmissions/Props' started by twade36577, Apr 13, 2012.

  1. twade36577

    twade36577 New Member

    33
    Sep 8, 2009
    Lake Lanier
    2007 340 Sundancer
    Merc 8.1
    I took the one off the port engine today to replace the iac muffler. It was a real bi$&@ to remove. I ended up having to take a hammer and knock it off. Is there an easier way? Thanks, Tommy
     
  2. Jimmy Buoy

    Jimmy Buoy Active Member

    Dec 3, 2008
    Sarnia, Ontario, Canada
    340 Amberjack
    twin 8.1S 370 Hp + 4.5 Westerbeke Genset
    I clean my arrestors a couple of times/yr and haven't had any problems. There is a hose clamp that must be loosened and I also take off the plastic engine cover. Then grab the arrestor and wiggle it side to side and it should come off the intake manifold. My engines have no iac mufflers. Sure they can whistle somewhere around 1500 RPM, but the iac is at the opposite end of the engine so I'm not too worried about it getting dirty or clogged. Never had any issues with the non-muffled iac (so far).
     
  3. twade36577

    twade36577 New Member

    33
    Sep 8, 2009
    Lake Lanier
    2007 340 Sundancer
    Merc 8.1
    Thanks. I'm gonna do the starboard one next weekend. May use a rubber mallet to tap it off.
     
  4. twade36577

    twade36577 New Member

    33
    Sep 8, 2009
    Lake Lanier
    2007 340 Sundancer
    Merc 8.1
    Ok, rubber mallet did the trick. Came off like a champ. This time I had difficulty getting it back on. After bending the flanges slightly with pliers it slipped back on.
     

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