clicking noise on and off

Discussion in 'Classic Buicks' started by briangentsch, May 11, 2015.

Tags:
  1. briangentsch

    briangentsch New Member

    hey folks

    i can hear a clickin noise, I assume from listening, it comes from the 2nd cylinder. sometimes its there, sometimes not. it accelerates with the rpms.
    could it be a misadjusted rocker, but why is the temporary then ?

    its a 60 invicta w/ 401 nailhead

    thx for any help
     
    Last edited: May 11, 2015
  2. 69GS400s

    69GS400s ...my own amusement ride!

    you should state what year and motor you are talking about ..

    .. but the 350 / 400/ 430 / 455 all have non-adjustable rockers from the factory.

    If I were to take a wild guess, I'd say you have a sticky hydraulic lifter. They can stick for a variety of reasons .. sometimes just being gummed up. My SportWagon had that problem and on the advice of master engine builder and the V8 board owner, I changed the oil and substituted 1 qt oil for a qt of trans fluid which helps dissolve the gunk - after about 200 or so miles of regular driving the noise was gone - I drove it for another 200 or so and changed the oil again back to all oil and it has been fine since.

    YMMV
     
  3. bhambulldog

    bhambulldog 1955 76-RoadmasterRiviera

    :gp:
    I use Marvel mystery Oil for such.
    I regularly add Marvel Mystery oil to the crankcase a few miles before an oil change.
    and, I add 4 ounces of marvel Mystery oil to each fill up of fuel in all my cars
     
  4. BadBrad

    BadBrad Got 4-speed?

    Electro-mechanical voltage regulator is an occasional source.
     

Share This Page