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    Power Steering Fluid

    I have a 1990 4.3L Mercruiser with Alpha One Gen I outdrive. I recently dropped a battery on my power steering system's high pressure hose and it sprang a leak. I replaced the hose already but haven't refilled the fluid yet. According to the manual (Merc Service Manual #7 pg. 7A-3), I'm...
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    Power Steering High Pressure Hose

    Hi there. I have a 1990 4.3L Mercruiser with Alpha One Gen I outdrive. Today I noticed a puddle of what looked like oil under my boat. I traced it to the high pressure power steering hose. It is leaking out where the rubber hose meets the metal fitting not at the pump but at the other end...
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    No Spacer in Thermostat Housing?

    Pertinent Info: 1990 4.3L V6 Alpha One Gen I My engine ran hot until I replaced the impeller. Then it ran cold so I am in the process of replacing the thermostat. It's the 6 hose thermostat housing with the small diamond-shaped plate up top. According to the diagram from top to bottom, I...
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    Water drip (1990 4.3L Alpha One Gen I)

    I have a 1990 4.3L Alpha One Gen I. While I was dusting off the moth balls and getting the boat ready to go out next week, I noticed a drip I've never seen before. I couldn't get a good look at where it's coming from on the engine but it's dripping down near the starter. It's a very slow drip...
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    Possible fuel system issue on Mastercraft I'm looking at buying.

    There's a seller letting go of a 91 Mastercraft pretty cheaply that has what he claims to be a fuel system issue. According to claims, it was running roughly so he had the carb rebuilt. After that rebuild, the boat will turn over but not run for any length of time. He has foolishly sprayed...
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    Trim pump won't trim out/up... occassionally

    I have a 1990 Mercruiser Alpha One Gen I outdrive with the Oildyne trim pump and plastic reservoir. When I try to trim up, sometimes it works and sometimes it doesn't. When it doesn't work, I hear a grunt and then nothing. I then usually have to press trim up about 5 to 8 more times and it...
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    Leak at rubrail.

    I thought I might have a leak in my outdrive but after removing the drive and finding the bellows dry, I started searching around and had an "Aha!" moment when I noticed a glob of silicon on the rubrail that the previous owner must've put there. I took the boat out to the water and when I stood...
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    Son tried to kill my Alpha One Gen 1

    So my 1 yr old son was spinning the prop yesterday. I immediately yanked him away from it as soon as I saw him but apparently not before he dropped a very small wrench in the propeller. This particular prop is a composite prop and has pretty large gaps between the inner hub and the outside of...
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    Power Trim leak? (milky overflowing trim fluid)

    I was finishing up winterization yesterday on my 1990 Merc 4.3L Alpha One when I noticed the power steering pump reservoir was overfolwing and the fluid was a milky white mess. The power trim still functions properly but I haven't touched it since I noticed the fluid since I don't want to...
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    Adding a trim indicator (how hard?)

    I purchased a 1990 Galaxy 190 a while back and while I really like it (and it's sure a lot better quality than the mid-80's Galaxy models), I'm a little disappointed that they didn't bother to put a trim indicator on the dash. It's got a 4.3L Merc Alpha One engine and outdrive setup. How hard...
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