27hp Kohler pro

Discussion in 'Mechanic and Repair' started by walker45, Sep 10, 2012.

  1. walker45

    walker45 LawnSite Member
    from va
    Posts: 62

    Just purchased a Scag Tiger Cat with 27hp Kohler command pro with 34 hours, when the engine is at idle it sounds like it rattles almost like a shield is loose when you up rpms to mow it goes away. I have had all Kawasakis before is this the nature of these, don't know what this means if you just block off any of the exhaust it goes away. Does this sound like an issue.
     
  2. ringahding

    ringahding LawnSite Senior Member
    Posts: 613

    Check to see if there are bolts loose or missing on the exhaust mount.
     
  3. walker45

    walker45 LawnSite Member
    from va
    Posts: 62

    I did doesn't seem to be all seems tight
     
  4. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    Broke loose baffle inside the muffler is my guess, With the muffler cold of course bump on it with the palm of your hand and see if it rattles....
     
  5. walker45

    walker45 LawnSite Member
    from va
    Posts: 62

    I'm just worried its something inside engine is there a way to verify baffle is bad
     
  6. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    Check my edit....
     
  7. walker45

    walker45 LawnSite Member
    from va
    Posts: 62

    Ok if not that do you think something is wrong with the engine.
     
  8. walker45

    walker45 LawnSite Member
    from va
    Posts: 62

    I took a small threaded rod and ran up into muffler seems to go away has anyone ever repaired one that is loose and if not where is the best and economical place to purchase a replacement
     
  9. FryDaddy

    FryDaddy LawnSite Member
    Posts: 145

    The baffles in muffler are broken & moving around. Just cut the end open & remove broken baffles and then re weld exhaust back together. This is what I did with my 27 Kohler.
    Posted via Mobile Device
     
  10. walker45

    walker45 LawnSite Member
    from va
    Posts: 62

    Does the engine require a certain amount of backpressure, so it shouldn't harm the engine if baffles are removed
     

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