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    Replacing Impeller

    2002 Sea Ray 176 Bowrider 3.0L Alpha 1 Gen II Since I had the lower unit off to have the cavitation plate repaired, I decided to go ahead and replace the impeller myself this time. I have a couple of very novice questions. 1. It looks like the impeller is sort of crammed into the housing. The...
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    Changing Alternator Belt

    3.0L Alpha. I just changed the alternator belt. I removed the motor mount block to accomplish this but when I try to replace the block I cannot get the bolts started. I didn't block the engine. Is it possible that the engine dropped a fraction and is causing this problem? The bolts look ok and...
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    Alpha I Gen 2 Gear Lube Mystery

    I have changed the gear lube religiously on my Merc 3.0 Alpha I outdrive. There are currently 250 hours on it. There has never been any evidence of water in the oil. The boat is stored on a trailer and launched for each use. The mystery is that I have to occasionally add lube to the reservoir...
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    Crack in lower unit housing

    I have recently noticed a hairline crack in the fin (parallel to the water) at the top of my Alpha II. It runs from the trim tab anode toward the main housing. It isn't causing a lube leak. No water in lube, no lube leaking. Has this happened to anyone else? The drive is 5 years old and has 190...
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    Lubricating Gimble Bearings

    I know I have seen this thread before, but I can't find it. Searay 176 Bowrider 3.0L Alpha II. The Mercruiser owner's manual claims that the gimble bearings can be lubed without pulling the outdrive. I'll be darned if I can find or figure out how to reach a fitting packed in behind the...
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    Pre-92 NS70A

    I gather from reading the posts on year, Nissans' serial numbers do not correspond to year on pre-92 models. This is probably why the only repair manuals I can find are 1992-on. I have a NS70A Ser 360I-12728 that came on a 1988 Grumman Pontoon (Motor is probably 88 but not for shure). Does...
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    Throttle Cable Adjustment

    I have a 1988 Nissan 70 hp with Nissan controls. The throttle does not engage in forward (gear engages just no throttle increase) until about half way through the range to full. Same thing but not as bad in reverse. Also, it sounds as if my motor has a bit more to give even when the throttle...
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    Throttle cable adjustment

    I have a 1988 Nissan 70 hp with Nissan controls. The throttle does not engage in forward (gear engages just no throttle increase) until about half way through the range to full. Same thing but not as bad in reverse. Also, it sounds as if my motor has a bit more to give whent the throttle lever...
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