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Hydraulic Lifter Noise?

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  • #1

    Hydraulic Lifter Noise?

    My lawnmower has a 20hp Kohler Command 90* V-twin Motor with OHV and hydraulic lifters. Today cleaned the deck the lazy way by lifting the front of the machin (its a walk-behind) and when I started it there was a strong valve noise. It was odd to me because it developed after I cleaned the deck... I ran the machine for 15-20 minutes and it went away... Is it possible the lifter was starved for oil causing the noise? Shpuld I have the let the machine sit level for a little while before starting it up? I dont havemuch experience with these engines or hydraulic lifters in general, any help is appreciated I dont want to do any damage...
    '79 XS11 F
    Stock except K&N

    '79 XS11 SF
    Stock, no title.

    '84 Chevy K-10 "Big Blue"
    GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

    "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~
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  • #2
    It is possible I suppose. I would say let it sit a few hours, start it again and see if the noise appears again. If not, you are probably correct, and know next time to find a new way to clean the deck.
    Life is what happens while your planning everything else!

    When your work speaks for itself, don't interrupt.

    81 XS1100 Special - Humpty Dumpty
    80 XS1100 Special - Project Resurrection


    Previously owned
    93 GSX600F
    80 XS1100 Special - Ruby
    81 XS1100 Special
    81 CB750 C
    80 CB750 C
    78 XS750

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    • #3
      The noise did go away while it was running, couldnt tell exactly when b/c my ear muffs were on but I checked after about 10 minutes or run time and it was gone. I probably should of let it sit a while after the cleaning but the thought poped in my head after I started it...

      Wasnt sure if anyone heard if hydraulic lifters making noise like that ...
      '79 XS11 F
      Stock except K&N

      '79 XS11 SF
      Stock, no title.

      '84 Chevy K-10 "Big Blue"
      GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

      "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

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      • #4
        Originally posted by WMarshy View Post
        My lawnmower has a 20hp Kohler Command 90* V-twin Motor with OHV and hydraulic lifters. - - -
        Hi Wade,
        ooh, there's posh! Our lawn mower has a side valve single that looks like it was designed by a blacksmith in 1922.
        Seriously though, a lawn mower has to be built to thrive on operator neglect and misuse so I doubt a mechanically apt person like yourself could hurt it if you tried.
        Fred Hill, S'toon
        XS11SG with Spirit of America sidecar
        "The Flying Pumpkin"

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