Recent content by Libbs

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    MCM-140 Manifold attachments

    Hi guys, My MCM-140 manifold had a lovely crack in it, and had to be replaced. The new manifold did not come with new end plate & water intake, so I removed them from the old manifold, removed rust, gave'em a nice new coat of paint, and now I'm ready to put them onto the new manifold. The...
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    Prop & RPM Question

    Hi guys. My boat has a Mercruiser 140 3L I/O engine. The maximum RPM for this engine is 4200-4600. I just want to confirm that my understanding is correct: 1. The prop on my boat should be one that produces a max RPM at WOT that falls between these numbers...right? The boat is still...
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    Can I make trailer signals brighter?

    Re: Can I make trailer signals brighter? Ok guys, here is a pic of the exact "T" harness in my Jeep: I installed it myself when I bought the vehicle last year, so it's still very new. The converter I'm guessing is the bigger box. 5 wires in, 4 out (including grounds). What exactly does...
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    Can I make trailer signals brighter?

    Re: Can I make trailer signals brighter? Thanks yet again for the tremendous amount of help here... Again, to answer a few things: -@UncleWillie: I think the problem started when I got this vehicle last year. I'm pretty sure the lights were fine with my previous vehicle. -@UncleWillie: I...
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    Can I make trailer signals brighter?

    Hi guys. When I tow my boat in daylight, the signals on the trailer are barely visible. When I turn my running lights on, all the lights are clearly visible, but the signals are still low. Using a voltmeter (set at 10V scale), I determined that the connection at my vehicle's plug is dishing...
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    Johnson 9.9 Oil leak

    Hi guys. My '85 Johnson 9.9 has been leaving post-use puddles of milky oil on my driveway. I'm pretty sure I have a seal leak, but in my search for answers, I've read that 2-strokes can have residual motor oil drip out as well, which can be mistaken for a leak. I'm hoping you guys can help...
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    New to the forum and my first boat

    Re: New to the forum and my first boat I'm also a first boat/first poster! I'm hoping you can help me since I didn't get an owner's manual with it... Here are some pics: The guy I got it from says it's 18'. It has a 140HP Merc I/O. I know it's a 1981 from the hull number, but unsure of...
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