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Technical SBC intake manifold gasket question

Discussion in 'The Hokey Ass Message Board' started by TINGLER, Apr 17, 2014.

  1. TINGLER
    Joined: Nov 6, 2002
    Posts: 3,748

    TINGLER
    Member

    I'm working on a small block chevy and I put an aluminum intake manifold on it. I used Mr. Gasket Ultra-Seal Intake Manifold Gaskets made out of the cellulose nitrile crap. Paper in other words. At any rate, I've got this beast running and it seems to run good without any noticeable leaks. No milkshake oil. No noticeable coolant loss. I torqued it correct following the proper sequence. Re-did it the next day and even checked it since.

    But as I look at the portion of the gaskets that stick out between the intake manifold and the heads, I can see that they are saturated with oil. NOT LEAKING. No pooling oil......just the gaskets are saturated with oil. This actually happened over a few days and a few trips round the block warming the engine up and letting it cool. I saw the oil creep up the gasket from the base of the intake until it's now covered the entire exposed portion of the gasket.

    Now this is my question: Is this normal, or should those gaskets remain dry looking?

    I've never used this type of gasket before.
     
  2. I've never used that type of gasket, but if it's saturated now it seems that it'll only get worse the more you run it. I'd pull those off and get a good Fel Pro set, and when you do the front and back where it seals to the block, I always put a 1/4 inch bead of RTV red instead of the rubber ones in the gasket set.
     
  3. TINGLER
    Joined: Nov 6, 2002
    Posts: 3,748

    TINGLER
    Member

    I did the RTV bead front and back and I have no oil leaks from those areas. Yeah, it seems to me that if oil is wicking up out of the lifter valley, it might just keep doing it.

    I ordered a Fel-pro set, as that's what I've used in the past, but then have read all sorts of stuff saying not to use the blue fel-pro gaskets with an aluminum intake.
     
  4. Russco
    Joined: Nov 27, 2005
    Posts: 4,072

    Russco
    Member
    from Central IL

    I don't know about your specific question, but I haven't seen you post in forever. Its good to see you back.
     
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  5. TINGLER
    Joined: Nov 6, 2002
    Posts: 3,748

    TINGLER
    Member

    I haven't had an old car in forever! lol. Thanks! The HAMB is the best place for info on the old stuff....can't stay away. :D
     
  6. Fogger
    Joined: Aug 18, 2007
    Posts: 1,397

    Fogger
    Member

    I've used no other gaskets than FelPro on all my builds. And always use the blue intake gaskets on sbc engines with aluminum intakes, never a leak or failure. Good luck with your project.
     
  7. squirrel
    Joined: Sep 23, 2004
    Posts: 43,998

    squirrel
    Member

    Sounds like a normal thing for a paper gasket. Is it a problem? I'd leave it, but I'm not a white gloves kind of guy
     
  8. TINGLER
    Joined: Nov 6, 2002
    Posts: 3,748

    TINGLER
    Member

    Squirrel! How you been?

    That's the other option. :D

    I'm paranoid though and find myself mulling over the stupidest stuff. The SBC is in a '63 Chevy pickup that I just bought. I drove the thing home 60 miles with my head basically hangin out the window from the gas fumes. After I got home I found it was puking raw fuel all over the intake.......That stuff doesn't faze me....

    ....but if I put on an intake, I got to lay awake at night wondering if the gaskets should look oily. :rolleyes:

    The truck runs a hell of a lot better than when I brought it home btw.
     
    Last edited: Apr 17, 2014
  9. squirrel
    Joined: Sep 23, 2004
    Posts: 43,998

    squirrel
    Member

    I'm doing ok. been building a Chevy II altered wheelbase car, it's a blast

    Sounds like you have other things you should be worrying about, besides oil seeping into a gasket
     
  10. TINGLER
    Joined: Nov 6, 2002
    Posts: 3,748

    TINGLER
    Member

    Nah, I got rid of that carb. It was the reason for the intake manifold swap.

    The guy I bought the truck off of said the carb needed rebuilt. He wasn't lying. :eek:
    It was a Rochester 2v. Swapped all that out for an edelbrock 4v and a new aluminum intake.

    [​IMG]

    As you can see, the truck needs a lot of stuff yet (like a reliable brake system). Guess that's the sort of thing I should be worrying about! haha.


    .
     
    Last edited: Apr 17, 2014
  11. 1971BB427
    Joined: Mar 6, 2010
    Posts: 5,515

    1971BB427
    Member
    from Oregon

    I'd just keep an eye on it, and if it gets to where it's making any mess on that nice clean intake, then I'd pull it again and put a new intake set on.
     
  12. Yeah, study its habits and if makes a mess, then do something about it. I've always used Felpro gaskets on almost anything myself. I do use their intake end pieces, but give it a shot of 3M Weatherstrip adhesive (aka Gorilla Snot..) at the corners where it meets the heads.

    I also use a touch of Permatex blue silicone sealer under them and let them set up over night before dropping the manifold in place.

    Bob
     
  13. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 5,864

    56sedandelivery
    ALLIANCE MEMBER

    Is it wicking up through the gaskets OR through the bolts? The overall appearance would be the same. Butch/56sedandelivery.
     
  14. stimpy
    Joined: Apr 16, 2006
    Posts: 3,547

    stimpy

    all the paper gaskets I have used over the years all wick up oil and it helps swell it to keep the seal . its not a big problem untill they get older and can cause smoking issues on deacelleration . looks like crap sometimes after it gets dirt on it . change out to the felpro permatrques and no more oil .
     
  15. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 1,796

    2OLD2FAST
    Member
    from illinois

    Like said above , could be oil coming up the threads on those bolts or could be a little seepage from the V/C gaskets

    dave
     
  16. As far as the bolt issue. What thread sealer are you guy's using? That's my issue.
     
  17. stimpy
    Joined: Apr 16, 2006
    Posts: 3,547

    stimpy

    I use teflon paste and adjust the torque specs to match .
     
  18. rustyrods
    Joined: Jun 14, 2005
    Posts: 319

    rustyrods
    Member
    from Dixon,Il.

    Yes it follows the bolt thread. Take them out one at a time put some sealer on each re tighen them and wha lah no leak
     

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