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    Trim Problem

    It seems I may have the lockdown problem referenced in other threads. When I put the boat in reverse the trim comes up. I can put it right back down and its fine until I go into reverse. I have a 1978 Mercruiser Inline 6 (250 Cu) with matching outdrive. I see references here to a kit to fix...
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    Quick Question

    I have a Merc 165 IL6. The boat has port and starboard vents with hoses into the bilge for air/ventilation. One vent is installed facing forward and one facing back. The one facing forward often gets water in it from spray. I was going to flip it around but someone told me that was correct and I...
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    Electrical Question

    I was hanging out at the marina Sunday and our group got into a rather spirited debate about ground systems on boats. Our friend was installing a new fuse panel and common ground. The debate was whether it was "correct" for the ground to be connected directly to the negative post of the battery...
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    Can this be right? Please help

    Ref a previous posting I have located my problem, but did not find what I expected to find. 1977 Mercruiser 165. We had a problem with the boat lurching and stalling. We opened the Pickup line and there was a screen that was clogged. HOWEVER no pickup tube...can this be right?? The tank is a...
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    The mystery Continues, any Ideas?

    Pardon the explanation as i wish to be thorough. 1977 Mercruiser Inline 6 250 Cu engine.... When running the boat, it will run fine for 30 or more minutes. All the sudden it will lurch (best description i have) a few times like it lost power and then stall. The engine starts right back up like...
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    Quick fuel tank question

    I have a 1977 Thompson Winner with a mercruiser 165 IL6. The fuel tank is a 25 gallon tank. Can anyone tell me if a tank of this era would have baffles? thanks
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    Interesting Problem

    I have a 1978 Tompson Winner bowrider with a Mercruiser Inline 6, 250 Cu engine. New Starter installed last year. New distributor, distributor cap, new points, condenser, plugs etc. The engine starts beautifully and runs well. After running it when I try to restart it it labors but then will...
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    Spring opening procedure

    I had my engine/outdrive professionally winterized last year. Is there a procedure for bringing it out of winterization and/or first start up? I have an 1978 Winner with a mercruiser inline 6 I/O. thanks
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    Hard start after warm

    I have a 78 Merc 165 L6. It cold starts with no issues and runs very smooth. After running it for a while, if I turn the engine off, I cannot get it restarted. If I wait a while, say 30 or more minutes, it will restart, though not as easily as a cold start.<br />Pertanent info: The belt was...
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    Merc 165 L6 Strange Noise

    I have a 1978 Winner bowrider with the 165 (250 cid) Merc. Whenever I start it and then increase rpm, there is a squealing in the rear of the engine. It sounds very similar to a squealing alternator on a car. It disppears once we get going, guessing above 1800-2000 rpm. The engine purrs after...
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