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    Identify replacement part number

    Can someone help me identify this part? More specifically, the part number to replace it? It's the water tube pipe and bushing that goes through the transom for a 3.0 mercruiser and alpha 1 drive. I have one for the 5/8 opening, but it appears I need the newer 3/4" pipe and bushing. I spent 30...
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    Alignment issues. Start with horizontal?

    Hey guys. I have the sticky, it's not helping me. I have a 3.0 mercruiser paired with a MR Alpha 1. I'm putting these into a new(er) boat. It should all fit according to Don from threads a few months ago. Here's where I am. The engine is in, and the rear bolts are tightened. The front mount is...
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    Gimbal bearing install

    Mercruiser 3.0 serial 6338565. Sterndrive serial 6394656. I have a new gimbal bearing to install. I've read the manual, but being a novice, it isn't specific enough for me. I see that I need to grease the area before installation, but what about the bearing itself? Does a new gimbal bearing...
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    Internal cleaning necessary for stern drive?

    Hey guys, thanks in advance for the help. My mercruiser stern drive is serial number 6394656. As you can see, I've got the drive moved at the moment, as I'm transferring it to another boat. From the looks off things here, I'm concerned I need to get in to the drive and clean it out. How far do...
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    Adding an external gear lube reservoir

    Can you add an external gear lube reservoir to a stern drive that didn't originally have one? My transom assemble serial number is 6394656 mercruiser alpha one on a 1983 Four Winns. I'm working on transferring this 3.0 Merc and outdrive to a 1996 Bayliner. The new(er) boat has the reservoir in...
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    Transferring engine and outdrive

    Hey guys, I just uncovered massive rot in the floor and stringers of my bow rider. The idea of gutting it all and rebuilding doesn't thrill me but my 3.0 140 mercruiser and alpha 1 drive still work well. I found a boat on CL that has no motor or drive but just had all stringers floor and glass...
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    Upgrading bilge pump

    I'm upgrading the bilge pump in my 1983 Four Winns 170 Marquise. It has the 3.0 4-cylinder 140R, serial number 6338565, with Alpha 1 stern drive. The original pump was not automatic, new one is. Currently, there is just a standard on/off switch at the helm to turn it on when needed. Do I need to...
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    Fuel pump arm stiffness

    How difficult should it be to manually operate the mechanical arm of a carter low volume fuel pump that it removed from block? I have a 1983 3.0 140 serial number 6338294 and I'm not getting any fuel to the carb when trying to start it. The filter at the carb looks clean as a whistle. Thanks!
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    Help me troubleshoot my fuel problem

    I have a 1983 Four Winns 170 Marquise with a 3.0 Mercruiser 140 straight 4 cylinder. The boat has been sitting, winterized, since the end of the boating season, 2011. I'm trying to get things up and running to enjoy my boat again, but I can't get it started. The engine is turning over, but...
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    Flywheel cover off?

    Is there a danger to damage anything by running the boat for a test drive with the flywheel cover removed? My 1983 Foir Winns Marquise 170 with merc 3.0 140 and alpha 1 drive has been getting water in the oil and sone leakage. Some oil has collected there previously, so I want to be able to see...
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    Help with locating interior material

    I have a 1983 Four Winns Marquise 170. The two moveable seats in the rear of the boat that can be changed from seats to a sundeck are in really bad shape. The wood is rotting, and the vinyl is very discolored. Can someone direct me to where the best place to find new material that will...
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    I was wrong, found milky oil leaking now in my merc 3.0. Now what is going on!?!?

    I have water in the oil of my 1983 Four Winns Marquise 170 with the (GM) Mercruiser 3.0 140hp I-4. The engine is mated to an Alpha 1. I had milkey oil, but flushed a few times and got clear, clean oil for the 4th weekend. I used the boat for two days, pretty heavily, and the oil remained...
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    Water geting in oil, but not when running. Help with gasket replacement Merc 140 3.0

    I have a 1983 Four Winns Marquise 170 with the (GM) Mercruiser 3.0 140 hp I 4-cylinder mated to an alpha 1 outdrive. I found a dipstick that was at least 2/3 full of the entire dipstick with basically milk. I changed the oil and filter 3 times, running the engine on rabbit ears each change...
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