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    Mercruiser 3.0L LX - EST Ignition - how to check for proper spark?

    Hi there, We have a 1997 Searay 175 with the Mercruiser 3.0 LX. Engine is running really rough with black smoke. Did extensive troubleshooting, but all things point to being really rich. -CHOKE is open - Spark plugs are all black with soot - I pulled the wires off when running 1 at a time...
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    Mercruiser 3.0L LX - Black Smoke / Rough Idle

    Hi All! Hoping to get some feedback on next steps for troubleshooting our 1997 Searay 175 - Mercruiser 3.0 LX with EST. Our issue started a couple years ago, and I have suspicions we moved on to a separate issue during the process. - 2 years ago, boat ran great, then all of a sudden on the...
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    Mercruiser 3.0L LX Alpha One - Oil Leak

    Hey All, I was wondering if anyone here has experience with an oil leak that appears to be coming from the front of the oil pan gasket? See the video here Oil leak.MOV Just looking for some confirmation, as it could be misleading if it was a seal directly above? Also, is it possible to...
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