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    Sea Ray 280 Mercruiser 4.3 Alpha 1 prop?

    Hello all, I still have the stock 3 blade aluminum props on my Sea Ray, and I am looking to upgrade to a 4 blade prop for better holeshot and mid-range cruising power as I usually have a good amount of weight and people on my boat at any given time. So, my question is would a 14.125" 19" Pitch...
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    Incorrect spark plug gap cause loss of RPMs at WOT?

    Would a larger spark plug gap on a Mercruiser 4.3 cause a loss of RPMs at WOT? I am only able to reach a max RPM of 3500-3700 RPMs (engine decal says it should run between 4400-4800) and this occurred after I changed the plugs last season. When I changed the plugs, I accidentally gapped them to...
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    89 Sundancer 280 - City Water shut off valve? Tank Leak?

    Recently a few helpful neighbors and I could not find a single shut off valve for the city water inlet on my new to me boat. Where would it be hiding? Would it be near the hot water tank? I am not getting any water to the facets except with a small burst of air and then water barely trickles...
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    89’ Sundancer tach, temp gauge, and shifting issues

    Hello everyone! My name is Eddie and I am brand new to the forum and just purchased a 1989 Sea Ray 280 Sundancer with 4.3l Mercruiser V6s and bravo 1 out drives. I took my maiden voyage over the weekend to move the boat from one marina to another and ran into a few issues that the seller had...
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