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Intake Gasket Advice

Discussion in 'Early CJ5 and CJ6 Tech' started by 53Flattie, Mar 29, 2024.

  1. Mar 29, 2024
    53Flattie

    53Flattie Intigator

    Easley, SC
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    Sep 23, 2002
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    Next up on the to-do list is replacing my intake gasket. I have a substantial oil leak at the drivers rear corner and I assume it’s where the intake meets the valley of the block (I think I heard someone call it the “Great Wall”).

    Any recommendations on gasket brand? Heavy bead of Right Stuff for the front and rear? Any other tips or tricks to ensure success?
     
  2. Mar 29, 2024
    53Flattie

    53Flattie Intigator

    Easley, SC
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    Edit: Now that I’m looking at gaskets online, I see that the 225 uses rubber seals at the front and rear.
     
  3. Mar 29, 2024
    Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Virginia Beach, VA
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    felpro for intake gaskets
    I would not use the rubber end gaskets - IMO
    a good bead of permatex ultra gray for ends . and wait 24 hours before running engine
     
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  4. Mar 29, 2024
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    I would use the rubber intake ends, but glue them to the block only with 3M yellow or something similar.
    The rubbers have a tendency to squish out unless glued in place.
    Then I would use Ultra or similar in the corners.
    Whatever you use, make sure its cured for a good length of time as mentioned above.
     
  5. Mar 29, 2024
    Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Pullman, WA
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    After having this issue multiple times with Felpro intake gaskets, never again:
    [​IMG]

    Victor Reinz is my go-to these days with no issues.
     
  6. Mar 30, 2024
    Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maryland
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    I toss the end seals and use ultra black as well.
     
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  7. Mar 30, 2024
    colojeepguy

    colojeepguy Colorado Springs

    At the foot of...
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    My opinion is that Felpro is a brand that used to be top quality, but with the pressure to be low priced these days, their quality is less and they're riding on a brand name.
    They are far from the only ones doing this.
     
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  8. Mar 30, 2024
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
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    :watch:

    I need to do the same thing
     
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  9. Mar 30, 2024
    Rozcoking23

    Rozcoking23 RUN & GET BIT! 2024 Sponsor

    Stockton, CA
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    .
    x2
     
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  10. Mar 30, 2024
    vtxtasy

    vtxtasy oldbee 2024 Sponsor 2023 Sponsor

    Tucson, AZ
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    x3..... Small water leak at the passenger front of intake. Felpro gasket and Ultra Black.
     
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  11. Mar 30, 2024
    Rozcoking23

    Rozcoking23 RUN & GET BIT! 2024 Sponsor

    Stockton, CA
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    I was looking at mine today, major oil leak running down back of block from the intake.
     
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  12. Mar 31, 2024
    53Flattie

    53Flattie Intigator

    Easley, SC
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    This is my issue too…

    Thanks for the advice. I’ll go with the Victor Reinz and Ultra Black for the ends.
     
    colojeepguy likes this.
  13. Mar 31, 2024
    Daryl

    Daryl Sponsor

    Bonney Lake, WA
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    Most of the rubbwr end gaskets I remove are actually installed backwards. The slots go to the outside and the continuous side goes in. Not sure why so many people get this wrong but may be why so many have issues.
     
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  14. Apr 2, 2024
    Deaner70

    Deaner70 Member

    Shreve, Ohio
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    i painted my engine Detroit Diesel green, so with that its mandatory to have oil leaks all over it like a Detroit so im gold. I just left them completetly out
     
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  15. Apr 3, 2024
    Ollie2009

    Ollie2009 Member

    Ann Arbor, MI
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    Now you tell me! I had a major leak out the rear manifold gasket (after R&R the intake) and this is what I found (see pix). Looks like I installed it backwards.

    [​IMG]
    <a href='https://postimg.cc/0zFSF3cq' target='_blank'><img src='https://i.postimg.cc/0zFSF3cq/DSC01673.jpg' border='0' alt='DSC01673'/></a>
     
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  16. Apr 6, 2024
    Daryl

    Daryl Sponsor

    Bonney Lake, WA
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    Not sure if this would actually count as being installed but it does appear to be in backwards too.
     
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  17. Apr 7, 2024
    jeepdaddy2000

    jeepdaddy2000 Active Member

    Eagle Point oregon
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    This.
    Did an 304 intake install a couple of months ago. Had a HELL of a time with the end seals, We used a number of manufactures (3 intake sets:steamed:) including fel pro. What I found is all the end gaskets were made of some kind of plasticy substance that wouldn't compress well. Instead it squirted out every time. I wound up using a sealant bead on the ends to get it to seal up properly.

    BTW, it seems the same substance is being used on replacement clutch fork boots, and it doesn't work there either...............
     
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  18. Apr 7, 2024
    Ollie2009

    Ollie2009 Member

    Ann Arbor, MI
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    Unfortunately, most all of the aftermarket rubber parts are made in China. They haven't seemed to have mastered the art of rubber compounding and molding.
     
  19. Apr 7, 2024
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    I suspect they could, but are driven more by the need to reduce costs, so as to provide the lowest bids to buyers in the US.
     
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