350 TA intake leak

Discussion in 'Small Block Tech' started by 70skylark350, May 1, 2022.

  1. lostGS

    lostGS Well-Known Member

    Thanks for the info, guys. Will try and remember to re-read this thread before I do the intake on the wagon.

    Tim
     
  2. 70skylark350

    70skylark350 Jesus loves you unconditionally

    Well I just got done resealing my intake, screw those end seals! They kept rolling on me when I got to my final torque. I pulled the intake back off and threw them in the garbage, used Rightstuff on both ends. Other than that it went well, thanks for the help.
     
  3. 1973gs

    1973gs Well-Known Member

    I've used rubber end seals and I've used sealer, either one is fine, but I've never had an end seal roll while torqueing the manifold. Is there possibly a machining issue?
     
    Mart likes this.
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Yeah, that is because there is insufficient clearance for them. I would think it has something to do with machining. You need .190-.200" clearance when you mock up the assembly for them to work.
     
  5. sean Buick 76

    sean Buick 76 Buick Nut

    1. Never use the bathtub steel intake gasket
    2. Always use the TA composite intake gaskets
    3. Use the AMP valley pan cover
    4. Use “the right stuff” on both ends and torque to 5 foot pounds. Then after 12 hours torque to spec
     
  6. Storm1

    Storm1 Silver Level contributor

    If you use the AMP valley pan cover AND the rubber seals, you're going to have issues. The bend of the valley pan gasket (on the inside) makes the rubber seals almost impossible to get a good fit. I had my block decked, heads cleaned up, and TA intake port matched. Still had .188 gap.

    [​IMG]
    [​IMG]


    Mine leaked and I had to take everything apart and re-seal with The Right Stuff. No leaks.


    [​IMG]
     
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  7. Mart

    Mart Gold level member

    .007 Cleanup cut on all surfaces, been using stock valley pan AND the rubber end seals. No problem. I've never used anything but. Tried composite intake gaskets and ripped them off. Slid around too much. They sucked imho.
    Everyone's setup is different......
     
    70skylark350 likes this.
  8. gsjohnny1

    gsjohnny1 Well-Known Member

    been using rtv since they came out with it. rubber seals are good for nothing. and i have to make my own intake gaskets.
     
  9. Fox's Den

    Fox's Den 355Xrs

    can't help it he is still in the dark ages:eek::D
     

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