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  1. #1
    Join Date
    Jul 2009
    Posts
    14

    Default What is this called?? speedo is not working and no air can get through this part


  2. #2
    Join Date
    Nov 2003
    Location
    Land O Lakes, Florida
    Posts
    6,377

    Default

    absolutly no idea what the heck that is-never seen something like it.

    anybody

    anybody
    Hey, Its Moomba time

    Its all about the dash - enjoy the dash, as that is your time between the dates
    13 Mobius LSV-sold
    08 Mobius LSV-sold
    03 Mobius LSV-sold
    life is about finding the balance between being a responsible adult and staying young at heart

  3. #3
    Join Date
    Mar 2003
    Location
    Springfield Missouri
    Posts
    3,392

    Default

    Expansion chamber. I worked on mine many years ago and I think it is a water/air interface where no water should come out. I never did figure it all out but SKIDIM would know how it works and I don't think water would come out. 90% of the problems is between the connection on the bottom and the pitot tube and usually clogged. If the area is wet back by the tube, you have a mini-geyser when your traveling and the connection needs to be fixed. Usually it is a clogged pitot tube and blow compressed air back through using the hose connection on the pitot tube.
    1998 Mobius
    310 HP PCM
    SOLD

  4. #4
    Join Date
    Jul 2009
    Posts
    14

    Default

    just figured out air is coming/going through, so this part is not the problem. it's the hose from the outside of the boat to the bottom of this chamber that is the problem. air goes through this part, out the top and through the hose to the speedo with no problem. looks like you have to pull out the gas tank to replace that hose

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