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    258 Vista. I think I want one

    The boat you're asking about is a decent typical consumer grade boat, not poorly built but if you are looking at ones that are close to 20 years old keep in mind that there is wood in the structure that can lead to expensive problems if holes were drilled and not sealed. An example is snaps...
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    '92 OMC 4.3L Cobra

    Before you go ahead with it, see if any shops near you will work on them. So for example if you need to have the drive re-sealed, and don't have the special tools needed, then what? The lower unit is very similar to the common V6 Evinrude/Johnson outboard gear cases, the upper unit not anything...
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    1996 4.3 Mercruiser idle sputter

    compression test results are supposed to be high (in this case like 150-165 or so, leak down tests are supposed to be LOW...if they are high like yours you're losing a lot of compression via valves not seating or worn piston rings.
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    1996 4.3 Mercruiser idle sputter

    Sorry those results are bad. Normal comp test results on the 4.3 are 155-165 or so. Mine had always been 160-175. The source of the water might have been those one piece manifolds, they are known to fail due to inconsistent wall thickness because of casting problems. If you repair/replace the...
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    Thread Locker Choice

    if you're referring to the bolts that hold the housing together, what does Merc say to use? I don't think I'd use thread locker I might use Merc Perfect seal to keep water out of the threads and reduce the chance of seizing. I have done this on my Cobra used in salt water and it has worked well...
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    Tuliped valve causes

    Look at your spark plugs center insulator porcelain that can tell you a lot. I always wondered if the 4.3 V6s were less prone to this because none of the exhaust ports are siamesed as on the V8s....yet my OMC is set up from the factory to run less spark advance than any of the V8s, go figure!
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