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    driven shaft bearing

    just noticed a whining noise coming from my alpha 1. we recently replaced the gimbal bearing and u joints. So i pulled the cap off the top of the outdrive and the bearing had some corrosion on it. 2 questions. this boat sat up for about 2 years and since that bearing does not sit in gear oil...
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    gm 3.0 flapper valve?

    I've got an intermittent(sometimes pauses 5 - 10 seconds before hearing it) tapping sound coming from the right side of the engine at idle or underway,gets louder underway. someone said it could be the flapper valve. Does that make sense? If not any thoughts on source of noise would be welcome.
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    tilt/trim goes up but not down

    tilt/trim goes up but not down we have a mercruiser 3.0 alpha 1988. The tilt motor runs in both directions and it will raise outdrive all the way up however it won't go down. Motor sounds more "solid" going up kind of whiny sounding in down mode. I have seen other posts with the milky...
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