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Intake manifold is Crispy Crunch inside.

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  • Intake manifold is Crispy Crunch inside.

    Inside the manifold the rubber is hard and flaking off.
    Please read my other post about it.The post is under "Gas tank sending unit"
    Thank you.

  • #2
    Crispy Crunch manifold somebody please respond.

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    • #3
      I'd say that's probably a new one here on the Clinic. Been a member 11 years, and don't recall that one before. The manifolds are a bit delicate, as they sure do dry rot and crack... but, the inside flaking? I guess they should all be PORTED!!! Problem solved! LOL

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      • #4
        Sounds like several intervals of excessive heat. As mentioned, not a common thing we hear about hear. 6 years here most every day and never encountered it before.





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        • #5
          I read your other post about the issue. As long as the rest of the manifold is in good condition just remove that rubber as you said. I also say now is the time to port the manifold and flatten the flanges. Get a tube of Hylomar to put on the flanges along with the orings to reseal when you reinstall.

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          • #6
            Thanks for your help guys.
            I removed all the crispy rubber, feathered the good rubber too the metal with a dremel.
            Did the porting and cleaned everything up with emery cloth.
            Ready to install.


            Comment


            • SuperG
              SuperG commented
              Editing a comment
              Be sure to eyeball the inside of the manifold against a bright light and double check that no cracks made it all the way through. My 99's manifold cracked through in 2014...

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