Engine noise Tc 103

Discussion in 'Engine, Fuel and Exhaust' started by Keljukojootti, Nov 12, 2018.

  1. Keljukojootti

    Keljukojootti Member

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    Hi

    Does anyone knows, what is this metal knocking noise in low rpm (about 1300-1400) Dealer say's it's normal, but I don't think so. My bike has only 2900 km. Check my youtube especially end of the video, you can hear it better...
     
  2. liquid_wrench

    liquid_wrench Junior Member Contributor

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    Welcome to the forum....It sounds like the lifters are knocking to me.
     
  3. Harttoo

    Harttoo Well-Known Member

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    Lifter noise is common and normal on a twin cam 103 engine.
     
  4. tourbox

    tourbox Senior Member Contributor

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    Welcome from So. Texas.
    tourbox
     
  5. Keljukojootti

    Keljukojootti Member

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    Thanks

    My previous bike was sportster, so this is new to me...
     
  6. Keljukojootti

    Keljukojootti Member

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    Is this knocking because lifters are hitting pushrod covers or what causes this knocking sound?? Is there any way to fix that noise besides loud pipes
     
  7. jamesearl

    jamesearl Senior Member

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    Sporty shoulda sounded like a sewing machine,this sounds a little thumpy
     
  8. Jeff Klarich

    Jeff Klarich Experienced Member Contributor

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    What oil are you running? it's been reported that some oils will make the valve train noise a little more pronounced.
     
  9. Keljukojootti

    Keljukojootti Member

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    Dealer put H-D 360 oil 20w50
     
  10. dolt

    dolt Senior Member

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    Listened to the video several times but the OP did not indicate if the motor was cold or at operating temps. I would like to hear both videos before making a call; one cold (maybe the one in the OP) and one at operating temps.

    I do think I hear a little rocker arm rattle which, could go away at operating temps. One solution would be to replace the pushrods with adjustables to set more preload on the lifter but, as I mentioned, I would like to hear the noise at operating temps.;)