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Jeep tj OPDA

  1. Gilbert & Betty Member Joined: September 2014
    #19 Sep 2017, 7:13 AM

    I am getting a knocking from my OPDA (oil pump drive assembly) l took the cover off and doesn't seem to have excessive play.  I have no squealing coming from it .  I've listened to the cam and lifters with a scope and the noise is from the OPDA.  Any thoughts should I replace the unit?

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