Quietest Engine?

Discussion in 'Lawn Mowing' started by Scapegoat, Jun 5, 2005.

  1. Scapegoat

    Scapegoat LawnSite Member
    Messages: 249

    Did a search but didn't find what I was looking for.

    Has anyone compared engine noise by brand and/or HP?

    Was wondering if all else being equal what brand ran the quietest.
  2. grass disaster

    grass disaster LawnSite Silver Member
    Messages: 2,776

    i believe the quietest mower out there would be the kubota diesel. that is one of thier strong points.

    they also have a "quiet" deck design.
  3. PLM-1

    PLM-1 LawnSite Bronze Member
    Messages: 1,640

    I would agree to that! I think one of the loudest is the Kohler.
  4. ToroLandscaper

    ToroLandscaper LawnSite Bronze Member
    Messages: 1,177

    Yeah Kohler engines get onnoying b/c i have one and that thing is the loudest thing ever
  5. Travis Followell

    Travis Followell LawnSite Silver Member
    from KY
    Messages: 2,206

    We have a new 26 hp liquid cooled kawasaki v-shaft engine and its pretty quiet. Its a lot quieter than our 25 hp air cooled Kohler.
  6. marvinlee

    marvinlee LawnSite Member
    from Oregon
    Messages: 108

    Engine noise can vary within engine brands. The new liquid cooled Briggs and Stratton commercial series "big block" twins might be quieter than their air cooled counterparts. The new, large, big blocks are a new design that weighs more than their previous v-twins. With new design and heavier castings, the noise might--not sure-- make less sound.

    I note that John Deere boasts of having an enclosed diesel engine in their new 997 ZTR mower. Has anyone heard it run to form a judgment?

    I have a ZD-21 Kubota with the 782 diesel engine. It is quiet, but I would like it to be even quieter. ZTR makers have a long way to go on perfecting low noise mowers.

    Mower manufacturers have some choice as to what RPM to run the engines that they buy. A lower RPM, other things being equal, usually means lower engine noise.
  7. tacoma200

    tacoma200 LawnSite Fanatic
    Messages: 5,426

    I'm not trying to be smart but I thought most mowers were loud enough that hearing protection would be in order. I aways put earplugs in when mowing along with safety glasses so noise is not an issue to me. Does anyone know how loud a mower has to be in decibels to require hearing protection? I am probably getting off the subject a bit but the answer would be interesting to me. How many landscape professionals use hearing protection would you think?
  8. Eddie B

    Eddie B LawnSite Senior Member
    from gone
    Messages: 859

    Do they sell aftermarket mufflers to quiet down some of these engines without sacrificing power?
  9. deereman

    deereman LawnSite Senior Member
    from USA
    Messages: 518

    Pretty much all your liquid cooled engines will naturaly, be a little less noisey than the air cooled models.

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