View Poll Results: is he correct?

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  1. #1
    been around the block Stagesrt4's Avatar
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    ? on exhaust manifold/motor install 787/800

    well its come the time to bolt exhaust manifold to jugs and drop engine into the ski....


    I was told by a knowledgeable friend of mine that i need to unbolt/remove jugs. Bolt both jugs to manifold with new gasket. Then re-install jugs onto pistons....


    is this correct? and tips...


  2. #2
    Not correct. Put gasket in place. Place both jugs over pistons. Install manifold to cylinders (pretty tight). Install cyclinder bolts. Finish installatrion as required.

  3. #3
    been around the block Stagesrt4's Avatar
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    well as motor is sitting now, its completely together besides the exhaust manifold

    so unbolt jugs, but dont pull is what your saying?

    bolt manilfold to jugs snug

    bolt jugs to case

    then tighten up everything?

  4. #4
    96XPSS's Avatar
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    If you didn't loosen the "jugs" (cylinders), and this is not an engine build, then you don't have to do a darn thing but prep and clean the surfaces with a razor blade and carb cleaner, and install the new exhaust manifold gasket and torque it to 30 ft/lbs.

    Now if this is an engine build and you tightened the jugs before using the exhaust manifold to align them, then yes, you need to loosen them. And FYI I do both sequentially. Snug the manifold bolts, while having the cylinder bolts just close to snug, but loose enough to allow movement. After the manifold bolts are snug, then step tighten all cylinder bolts to 15 ft/lbs, then 30 ft/lbs. Then tighten the manifold bolts the same way.

    To answer your poll...you need a "not enough info" answer too! lol

  5. #5
    been around the block Stagesrt4's Avatar
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    Ha thanks man

    yea this is a used motor, but has 0 hours.


    It was rebuilt, install on a ski, n never used...


    He took off head to look at pistons for me, so I guess I'll do your 2nd technic and unbolt cyl. I never use a torque wrench, but I'll use it on this.

  6. #6
    96XPSS's Avatar
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    Stick the exhaut manifold up against the ports and see if they match perfectly or not, before unbolting the cylinders. No need to go through the hassle if you don't have to.

  7. #7
    been around the block Stagesrt4's Avatar
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    Thanks I'm gonna do this now

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