Knock Sensor Locations?

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  • CTX-SLPR
    Legendary BangShifter
    • Jan 2008
    • 6011

    #16
    Re: Knock Sensor Locations?

    Your sensors don't use 3/8in NPT threads? I'd think your block drains are proably 1.4in NPT.
    Central TEXAS Sleeper
    USAF Physicist

    ROA# 9790

    Comment

    • TheSilverBuick
      ALMOST Spidey !
      • Nov 2007
      • 22145

      #17
      Re: Knock Sensor Locations?

      Originally posted by CTX-SLPR
      Your sensors don't use 3/8in NPT threads? I'd think your block drains are proably 1.4in NPT.
      You're probably right.

      Originally posted by IRONHEAD
      drill and tap
      Not keen on the idea of messing with the water jacket, but I may...
      Escaped on a technicality.

      Comment

      • IRONHEAD

        #18
        Re: Knock Sensor Locations?

        Originally posted by TheSilverBuick
        Originally posted by CTX-SLPR
        Your sensors don't use 3/8in NPT threads? I'd think your block drains are proably 1.4in NPT.
        You're probably right.

        Originally posted by IRONHEAD
        drill and tap
        Not keen on the idea of messing with the water jacket, but I may...
        1/4" to 3/8's shouldn't be a big deal.. as I'd think it be the same as if you had to heil coil it

        Comment

        • TheSilverBuick
          ALMOST Spidey !
          • Nov 2007
          • 22145

          #19
          Re: Knock Sensor Locations?

          Originally posted by IRONHEAD
          1/4" to 3/8's shouldn't be a big deal.. as I'd think it be the same as if you had to heil coil it
          The difference between optional and having too. I'd prefer not to.
          Escaped on a technicality.

          Comment

          • IRONHEAD

            #20
            Re: Knock Sensor Locations?

            Originally posted by TheSilverBuick
            Originally posted by IRONHEAD
            1/4" to 3/8's shouldn't be a big deal.. as I'd think it be the same as if you had to heil coil it
            The difference between optional and having too. I'd prefer not to.
            what about making one core/cast/freeze plug thread in. and drill that for your sensor
            or just pop one out.. weld a nut to it.. and put it or an replacement back in.. and screw the sensor into the nut on the freeze plug..

            Comment

            • CTX-SLPR
              Legendary BangShifter
              • Jan 2008
              • 6011

              #21
              Re: Knock Sensor Locations?

              Insufficient contact for sounds to get through using the freeze plugs. I'd only do that if I was going to pop the freeze plug and drill a hole so that the sensor was exposed to the coolant directly. You want to minimize the number of material interfaces as you loose a lot of sound energy at each interface because of differences in acoustic velocity.
              Central TEXAS Sleeper
              USAF Physicist

              ROA# 9790

              Comment

              • IRONHEAD

                #22
                Re: Knock Sensor Locations?

                Originally posted by CTX-SLPR
                Insufficient contact for sounds to get through using the freeze plugs. I'd only do that if I was going to pop the freeze plug and drill a hole so that the sensor was exposed to the coolant directly. You want to minimize the number of material interfaces as you loose a lot of sound energy at each interface because of differences in acoustic velocity.
                UNDERSTOOD, but your not willing to drill an oversized hole..
                so short of.. finding a sensor with your engine pipe thread..

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