Engine tapping noise

Discussion in 'Dyna Models' started by jeffreywatson, Dec 21, 2014.

  1. jeffreywatson

    jeffreywatson Member

    I have 2009 Harley FXDFSE Fat Bob with the 110 motor. I bought it used about six months ago with around 12K miles on it. it seems to run great but I was curious about an engine noise. There is always a sound like tapping as if somone put baseball cards in the spokes. I would say it's valve lash but i was told they are self adjusting. It almost sounds like a toy electric train.

    Should I be concerned or is that normal for a Harley ?

    Thanks in Advance
  2. Harttoo

    Harttoo Senior Member

    It is common to hear lifter noise.Sometimes it is a result of engine oil.My new bike had a lot of noise using Syn3.Changed to Mobil1 Vtwin 20w50 and noise is gone.
  3. jeffreywatson

    jeffreywatson Member

    ok i will try that thanks
  4. dbmg

    dbmg Guest

    You are riding a bike with character. To have a silent Harley is to have one that is not running.
  5. ultrat

    ultrat Senior Member Contributor

    I second the mobile one ,,,
  6. Jack Klarich

    Jack Klarich Guest

    Check your exhaust flange nuts and torque them to 10 ft lbs just for grins
  7. Jeff Klarich

    Jeff Klarich Well-Known Member Contributor

    Are you running synthetic oil? I found just the opposite of what has been posted. When I changed to synthetic (Mobil 1 20/50) from dino my top end got a little more noisey.
  8. wazzle

    wazzle Member

    Mine was very noisy after switching to Amsoil 20w50. It quieted when using syn3
  9. dolt

    dolt Senior Member

    Some motors make more noise than others; factory tolerances are the reason why as some valve trains are "tight" and some are not. Noise is also subjective; what is annoying to one is music to the ear to another. If the noise is truly valve lash, changing oil to a heavier weight can dampen the noise but it will not remove it. Try running a straight 50W conventional oil and if that doesn't diminish the noise, you can forget about changing oil as a solution. Adjustable pushrods that will allow you to put more preload on the lifters may be the ultimate solution.:D
  10. Jack Klarich

    Jack Klarich Guest

    Very good advice here from dolt, if this does not quiet it down you may try different lifters with the adjustable push rods