Chevrolet Beretta GTZ trouble

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  • 85_Olds_Ciera
    • Aug 2007
    • 259

    #1

    Chevrolet Beretta GTZ trouble

    What's making this noise?

    Chevrolet Beretta GTZ trouble

    RE
  • Superdave
    Been there, Built that.
    • Sep 2004
    • 5850

    #2
    sounds like it's spinning half a bearing.

    pretty weird.. lol
    Past Builds;
    1991 Z24, 3500/5 Spd. 275WHP/259WTQ 13.07@108 MPH
    1989 Camaro RS, ITB-3500/700R4. 263WHP/263WTQ 13.52@99.2 MPH
    Current Project;
    1972 Nova 12.73@105.7 MPH

    Comment

    • geldartb
      The Situation
      • May 2004
      • 1994

      #3
      thats def weird.

      tell the midgets with machine guns to stop playing under your hood.
      sigpic
      99 Grand Am GT
      3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
      Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
      1357 cam 227 233 .050 dur
      515 515 lift 112 lsa
      15.232@88.85mph on stock 3400---New time to come


      Comment

      • RedBird
        Aka Mr. 5th Motor
        • Sep 2006
        • 426

        #4
        We're coming under heavy fire captain! Get Down! Get down again!!!

        that's the weirdest noise(s) i've ever heard. Sounds kinda unhealthy.... Wish i knew more about quads, i think they're cool motors but i dont know crap about them....

        Cammed 3400 --> 224whp 210wtq
        Cammed 3500 --> ???
        1 of 5 3500 J-Bodies

        Comment

        • 19Cutlass94
          • Apr 2005
          • 770

          #5
          very strange! lol

          Wish I could help ya out...
          sigpic
          1994 Oldsmobile Cultass Supreme SL
          3400/Getrag 284 5spd
          1995 Chevy K1500 350c.i. 5spd Z71
          350/NV3500 5spd
          2014 Chevrolet Malibu LS

          Comment

          • 34blazer
            • Sep 2007
            • 341

            #6
            broken balance shaft?
            '86 Grand National

            Comment

            • 85_Olds_Ciera
              • Aug 2007
              • 259

              #7
              Originally posted by 34blazer View Post
              broken balance shaft?
              I have no idea, but over at BerettaStuff.com forum is where this is posted: here.

              Last time I checked, the dude who owns it has not taken it to the mechanic yet.

              I'm not familar with Quad-Fours, but it resembles a chain noise to me...but why noise goes away...I don't know.

              Comment

              • RedBird
                Aka Mr. 5th Motor
                • Sep 2006
                • 426

                #8
                Couldn't be a broken balance shaft, Q4's/ twin cams didn't get balance shafts until 95.....

                Cammed 3400 --> 224whp 210wtq
                Cammed 3500 --> ???
                1 of 5 3500 J-Bodies

                Comment

                • sharkey
                  • Jun 2004
                  • 2061

                  #9
                  didnt the lo output have balance shafts and the ho didnt???

                  Comment

                  • SHOoff
                    • Jul 2005
                    • 356

                    #10
                    I'd say it's a spun bearing. I'd guess cylinder #3 since that one seems to be quite popular with the Quad's
                    97 Cavalier RS
                    3400, Isuzu MK7

                    Comment

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