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Don't buy Chinese Turbos, eh? (Bastard threads)

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  • #46
    Over here we have this wonderful site called Tracy Tools where you can get many sizes you never heard of off the shelf. Want a 5.5mm x 0.9mm pitch left hand tap - they got 'em.
    ​​​​​​
    They do 11mm taps in 1.0,1.25 1.5mm pitch.

    https://www.tracytools.com/taps-and-dies
    Peter - novice home machinist, modern motorcycle enthusiast.

    Denford Viceroy 280 Synchro (11 x 24)
    Herbert 0V adapted to R8 by 'Sir John'.
    Monarch 10EE 1942

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    • #47
      Not trying to be annoying, but I was thinking last night,
      Anything related to the oil system of an engine makes
      me want to make sure it is super reliable.
      If the oil line should leak, it could happen that the oil
      could be pumped out of the engine as you drive.
      This happened to my uncle. He installed an additional
      oil filter on his truck. It was a bypass filter and he had
      routed the oil return line to the valve cover, as per the
      instructions. Well it was a cheap die cast zinc fitting that
      attached the hose to however it got connected to the
      valve cover, and it failed. Somehow all the oil got pumped
      on the ground as he drove the truck. I guess it was his
      fault for not seeing the oil pressure gauge or lamp.
      So it cost him a Cummins engine rebuild. So just be
      careful.

      -Doozer
      DZER

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      • #48
        Originally posted by The Metal Butcher View Post

        Complete my knowledge then artful.

        Minor diameter: .393"/9.98mm
        Pitch, near 1mm, perhaps a bit longer.
        1/20*25.4 = 1.27mm pitch .393 + 1/20 = .443 * 16 = 7

        It sounds like 7/16-20? Not hard to do the math
        -paul

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        • #49
          Originally posted by psomero View Post

          1/20*25.4 = 1.27mm pitch .393 + 1/20 = .443 * 16 = 7

          It sounds like 7/16-20? Not hard to do the math
          Your math looks good to me.
          I cross check inch and metric that way
          when I don't know what something is.
          NF is what AN fittings use, yes ?

          -D
          DZER

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          • #50
            Originally posted by psomero View Post

            1/20*25.4 = 1.27mm pitch .393 + 1/20 = .443 * 16 = 7

            It sounds like 7/16-20? Not hard to do the math
            Tried one. Started good, locked up. I think it's 7/16-24.
            21" Royersford Excelsior CamelBack Drillpress Restoration
            1943 Sidney 16x54 Lathe Restoration

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            • #51
              You could change the topic to ”don’t buy ’murican junk turbos” as Garret uses same ”bastard” thread
              Location: Helsinki, Finland, Europe

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              • #52
                Originally posted by MattiJ View Post
                You could change the topic to ”don’t buy ’murican junk turbos” as Garret uses same ”bastard” thread
                Maybe you can tell me why Liebherr uses Cat engines. But I think I'll just ignore you.
                25 miles north of Buffalo NY, USA

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                • #53
                  Originally posted by MattiJ View Post
                  You could change the topic to ”don’t buy ’murican junk turbos” as Garret uses same ”bastard” thread
                  Those bastards!
                  21" Royersford Excelsior CamelBack Drillpress Restoration
                  1943 Sidney 16x54 Lathe Restoration

                  Comment


                  • #54
                    Originally posted by The Metal Butcher View Post

                    Dad called me up today and said he needed a custom banjo bolt for a new turbo. M12x1. Seems rare, but ok. The old one was a pretty standard M12x1.25.Proprietary thread, or general incompetence? I think the latter.


                    Turbo is a cheap, ebay "Turbo" brand turbo. Dad's choice. . Anyone placing bets on if the damn thing works at all or blows up in the first five minutes. lol

                    Don't buy cheap ****!
                    Bets? Heck yeah! Im betting on Dad. So Ill give you 4:1 odds your Dad wins. Deal All Day ..

                    Cause you made a great fastener, I like it. Metal washers?

                    Love the work and pics, aand the story. JR

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