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Thread: Is this exhaust gasket correct???

  1. #1
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    Default Is this exhaust gasket correct???



    1990 YJ with the 4.2L (with MPFI mods)

    Exhaust manifold output / connection to exhaust pipe downtube. Two bolt (stud) connection.

    Should there be a gasket in this connection?

    Does this gasket look at all correct (it seems way large)?

    What say ye?


    (no old gasket around but the connection had one broken stud where an old gasket might have fallen out)
          

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    Default Re: Is this exhaust gasket correct???



    Edit....yes a doughnut gasket would normally fit between the manifold and collector flange. Although I think I may have skipped it in mine and just compression fitted the two together. Of course I am emission exempt.
    ___________
    James Orofino
    1970 CJ5
    1958 Willys Wagon
    2010 Tacoma TRD

  3. The Following Member Says Thanks to FINOCJ For This Post:

    Jim (September 9th, 2019)

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    Default Re: Is this exhaust gasket correct???



    Edited my response....
    ___________
    James Orofino
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    Default Re: Is this exhaust gasket correct???



    no gasket there, just tighten it down. those are notorious for coming loose and making people think the gasket disappeared. the 4.0 and 2.5 have a donut, but not the 4.2.

  6. The Following 2 Members Say Thanks to Paul For This Post:

    FINOCJ (September 9th, 2019),Jim (September 9th, 2019)

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    Default Re: Is this exhaust gasket correct???



    I went with Paul's recommendation - no gasket - tightened it up and went for a ride. It was a nice ride. Now I'll confirm some Yes's for some upcoming runs!

    Thanks folks.

    If anyone says a suitably sized gasket could/should be used - I'm game to hear of it.

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    Default Re: Is this exhaust gasket correct???



    Jim ditch the donut.
    Pull it nice ant tight no worries!
    ___________
    Crazy- You call me crazy, but you wouldn't know crazy if Charles Manson was eating Fruit Loops on your front porch. Suiciadl tendancies- intatutionalized

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