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Valve lash adjustment nut and screw very tight

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    Valve lash adjustment nut and screw very tight

    I was able to get a few loose but the adjusting nuts feel very tight and i am afraid I'm going to break them if i use anymore force. This is my first time adjusting the valves on this car and it sat for quite a few years before i got it so they are probably pretty seized on, does anyone know the best method to get these loose?

    #2
    Soak it in oil and let it sit, repeat for days.. try back and forth a little bit.

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      #3
      be mindful of the direction that your ratchet arm is facing. depending which way you push on it, you put more/less stress on the rocker arms. You want to avoid having them move side to side - so keep the wrench perpendicular for most force.

      Once the lock nut is cracked loose, get a sturdy flathead (#3) screwdriver and twist the adjusters back and forth a bunch of times. Not far, just the range of your wrist. They will loosen up and be ready for a proper valve adjustment.


      - 1993 Accord LX - White sedan (sold)
      - 1993 Accord EX - White sedan (wrecked)
      - 1991 Accord EX - White sedan (sold)
      - 1990 Accord EX - Grey sedan (sold)
      - 1993 Accord EX - White sedan (sold)
      - 1992 Accord EX - White coupe (sold)
      - 1993 Accord EX - Grey coupe (stolen)
      - 1993 Accord SE - Gold coupe (sold)
      Current cars:
      - 2005 Subaru Legacy GT Wagon - Daily driver
      - 2004 Chevrolet Express AWD - Camper conversion

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        #4
        I've found that if I am concerned about rounding a nut, I might have the wrong tool. I recently did exactly what you are doing and encountered the same thing. A really precise wrench or a lobed wrench like a Metwrench, which grabs the sides of the nut instead of the tips of the corners will allow a lot more torque. I have one set of sockets that is noticeably more precise of a fit than my others and I used them to get the most stubborn valve nut loose.

        I love cp[mike]'s suggestion about not pulling the rocker arms to the side. I didn't consider that when I was adjusting my valves. d'Oh!
        ==========================
        1991 Accord Lemons Race Car, "The Minnow" RIP
        1993 Accord Lemons Race Car, "SpaceEx Starship"
        Neuspeed Race Springs, Koni Sports, Acura CL Rear Sway Bar,
        Adj Upper Control Arms -3.0deg front, -2.0 deg rear
        M2A4 Trans, Cusco 1-way Limited Slip Differential, Stage 2 Clutch and 11lb flywheel. A4 Header, 2" exhaust all the way back, catalyst delete, delta 262 grind, glasspack muffler, PT6 ECU.
        Acura CL3.0 Brakes Front and Rear, Raybestos St43 Pads, Redline 600 Brake Fluid

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