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#57564
chris-p
Participant

    Step 1: Ensure the mating surfaces are square and no debris. I use gasket remover on both sides, then clean with acetone. I dress the handle on a machinist block with wet/dry on it to clean up metal and ensure it is true. Sounds straight forward right, but seen many guys installing new gaskets with chunks of the old one and residue still existing!
    Step 2: Use a good sealer. Will some seal without? Perhaps. But use it anyways. OMC Gasket Sealing Compound usually does the trick, or as Frank stated, the Mercury equivalent.
    Step 3: Use a new gasket. Obvious right, but thought I should probably add that.
    Step 4: I use Gasket sealing compound on the bolt threads as well before installing bolts with new washers.
    Step 5: Torque the bolts. Don’t guess. Tighten as you would a head gasket, in a circular fashion, starting in the center 2.

    Should not have any leaks following these steps.