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  1. 8

    Drive or coupler?

    Boat is in the water for another few days so I can't pull the drive to check this out fully. Merc 5.7 with alpha one drive. Was out yesterday cruising at about 3200 rpm, engine rev'd up high, no noises, smells, or smoke or anything. I shut it down, checked the drive/prop nothing amiss...
  2. 8

    Size Trim tabs for 1985 Wellcraft sportsman 248

    I need to get tabs for this 1985 wellcraft 248 sportsman. It has a single merc 5.7 and alpha drive. I had lencos on my last boat and loved them. I see I could get 12 x 12 or 9 x 18. Both would fit without issue. Which would offer better performance/ adjustability? Why? I'd think the 9 x 18...
  3. 8

    holley 4175 merc 5.7

    A few weeks ago I picked up a 85 wellcraft sportsman 248. Last owner didn't maintain. I replaced heads, cooling components, etc. I took it out for a test spin last night. The boat seemed a little sluggish, never been on one before though so not sure what to expect. After bringing it up to about...
  4. 8

    1988ish Mercruiser 5.7 Overheat

    Hello all. Wondering if I could get some ideas here. I recently (last Friday) picked up a 85 wellcraft 248 that has a single Merc 5.7 I/O. Got it for cheap, engine needed a bit of work. I was told by the previous owner that the engine overheated two seasons ago, he shut it down, had the impeller...
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