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  • Air injector replacement

    I have a 4.2 L 1981 CJ with pulse air injection. The tubes that enter the exhaust manifold are in bad shape. The front tube has developed a crack/hole that allows exhaust or air leaks. Did a temporary fix with some JB Weld but that won't last long.
    The carb has been replaced with a Weber so the vacuum controls are gone, apparently the pulse air portion of the system is needed to pass emissions testing on my engine. (Tried it with the pump disabled and failed the tail pipe test)
    Does anyone know of a parts source for the injector tubes? Or as an option has anyone done the 4.0 head conversion on a precomputer engine with Weber/TFI conversion and passed emissions requirements? Thanks.

    Ron

  • #2
    From the parts book.
    1 PIPE, Air Ijection
    J323 8936 With Straight Main Tube
    J324 0558 With Curved Main Tube

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    • #3
      The tubes are $16.70
      for the 81 CJ 4.2L

      http://www.oddballautoparts.com/Oddb...rter_Tubes.htm

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      • #4
        Originally posted by Jeepinabox
        The tubes are $16.70
        for the 81 CJ 4.2L

        http://www.oddballautoparts.com/Oddb...rter_Tubes.htm
        Thanks for the link.

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