What is this engine noise?

Lincoln LS

  1. ninja jt

    ninja jt LVC Member

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    Anyone know what this noise is? All of the chains and tensioners were just replaced. Everything seems to run smooth, idles great, drives fine, but the noise is there even with the belt off so it doesn't seem to be any of the belt driven accessories. I would say it sounds related to engine speed, but only a fraction of the RPM. Also slightly louder under the car than above.


    Belt on
    Dropbox - WITH BELT.mp4

    Belt Removed
    Dropbox - NO BELT.mp4

    Car warmed up after short drive
    Dropbox - WARMED UP.mp4
     
  2. BILLBOATS

    BILLBOATS Well-Known LVC Member

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    I am guessing due to experience witha 2.4 gm dohc I work on the chain tensioner may be not pushing full out to take up slack in the motor and causing a noise. Also mine is hydraulic running out with engine oil and a spring. Mine let go and 4 cylinder made noise due to allowing chain slack
     
    Last edited: Jan 2, 2018
  3. BILLBOATS

    BILLBOATS Well-Known LVC Member

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