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    '84 mercruiser 140 stutters while cruising on plane

    Of course, I finally fix my charging problems with a new alternator, get one great weekend out of her, and now we've got a new problem. The engine is an '84 140hp 3L. It starts great and runs fine at idle speeds. It also accelerates and gets up onto plane just fine. Then, intermittently the...
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    '84 merc 140 alternator wiring clarification

    I have a new alternator that I bought here for my 1984 Merc 140. Thanks to many other threads on this board, I think I pretty much understand what's going on. The diagram in this post was particularly helpful and it matches my new alternator perfectly. I'm still just a bit unsure of how to...
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    Prop + Rock = No Transmission

    Hi All, You were really helpful the last time I got myself into a problem, but I think I've got myself a bigger one this time. Boat : 1984 16' Four Winns Marquise 160 Engine : Mercruiser 4-Cylinder 140 I/O I was going 75% power (prob 25mph) when I hit a rock or something with the prop...
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    '84 Mercruiser 140hp cooling water pouring into bilge

    Hi all, I'm new to motorboats in general, but I bought myself a 16ft ski boat with an '84 inline-4 140hp mercruiser. I drained the water from the engine last winter after I bought it, and I think I missed a step this spring. When the engine is running, water pours out of one of the drain...
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