98 Intake Manifold Torque Sequence/Specs

Lincoln Mark VIII

  1. LandYachts

    LandYachts Active LVC Member

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    I've just have to pull my upper manifold (if that's the piece with two runners and the throttle body mating surface) to replace my fuel injectors.

    I'll touch on why I had to do that in another thread to help anyone else with a similar problem. But while I was removing the upper intake, I realized they were all FINGER tight! Whoever serviced these injectors didn't re-torque the upper manifold bolts after letting them warm up and cool down!

    I want to make sure that when it all goes together, both of the intake pieces are torqued properly.

    As well, I'd like to know if I should replace the upper manifold gaskets if they aren't damaged. Are they generally reusable? How do I find the darn things??
     
  2. LandYachts

    LandYachts Active LVC Member

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    Add EGR bolt specs to that.

    Sorry, it’s a 1998 base Mark VIII
     
  3. Scallywag

    Scallywag Active LVC Member

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    I've attached a PDF from the Intake Manifold section of the CD Workshop Manual for the Mark VIII. The torque specs should be on page 4 & 5.

    As for the intake gasket; Are you looking for just the intake or the IMRC gaskets as well?

    I believe they're interchangeable with the OEM gaskets from 96-98 Cobra Mustang, but as to where to acquire them, that's a bit tough.
     

    Attached Files:

  4. LandYachts

    LandYachts Active LVC Member

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    Thanks! Those numbers work for me. I tightened everything to 20ft/lbs so I was right on. Waited for it to cool down and re-torqued.

    The gaskets I’m referring to are the two ovals for the UPPER manifold. I reused mine but should I replace them? Everything is running better now that I replaced a bad fuel injector o-ring.
     

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