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Recent content by Leland Morris

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    Mercruiser 3.0 uneven compression

    I just picked up a 1997 Monterey 180 with a Mercruiser 3.0 in it. The motor only has 154 hours on it and seems to run well, maybe a little rough at idle. I decided to do a compression test and got #1-120psi #2-100psi #3-150psi #4-150psi. Could this be a blown head gasket? Cylinder 2 did seem to...
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