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Muffler Extensions?

Discussion in 'Mechanic and Repair' started by Charles, Oct 6, 2006.

  1. Charles

    Charles Moderator Staff Member
    Messages: 8,185

    I bought a small 11 hp engine with the muffler pipe aimed upward. It has a big round fat muffler on top of it(3 pronged). Where might I get an extension to get this thing out of the way?
  2. fly-4-fun

    fly-4-fun LawnSite Member
    Messages: 0

    If the muffler is a screw on type, you can get a pipe nipple and a couple of couplings and set it the height you want with the length of the pipe nipple.
  3. Charles

    Charles Moderator Staff Member
    Messages: 8,185

    Thanks fly-4-fun, I will check into it
  4. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Keep in mind, The longer the pipe the more weight hanging on the aluminum threads and more vibration. So a support bracket my be needed to aid against the threads being beat or rounded out and cut down on vibration.

    Seen it happen a few times....
  5. Charles

    Charles Moderator Staff Member
    Messages: 8,185

    I didn't think about the vibration. Where it connects to the motor there is 2 prongs where a nut screws onto the stem. Where the muffler connects there is three prongs where a nut is on them. These big round mufflers must be required to keep the noise level down but they get in the way of putting the bagger fly wheel/cover flush against the motor. This is my 3rd motor lol over many years and it wasn't designed for this leaf machine.
  6. fastlane

    fastlane LawnSite Senior Member
    Messages: 347

    Keep in mind that changing the length of the exhaust could effect the performance of the motor.

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