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    Alpha One Gen 2 water pump impeller

    1992 Alpha One Gen 2 replacing water pump impeller. The OD of the shaft is .875 and the ID of the new (Sierra) impeller is .890. It is therefore a very loose and wobbly fit. I have an old impeller from my 115 HP Tower Of Power and it has an ID of .875. Something seems not good. Any comments from...
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    Merc 1984 115hp lower unit parts

    MERC 1984 115HP LOWER UNIT PARTS (S/N) 6525876) Anyone know where I could get a set of all lower unit gears or a complete good lower unit or a quality rebuilt lower unit I have tried the internet and could not come up with stuff of that age. It has to be available, I just don't know how to find...
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    1984 merc 115 tell tale

    Running on muffs Water comes out of the tell tale strong after about 1000 RPM At about 800 RPM not water but occasional sperts of water with steam Normal or not. Thanks
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    1984 merc 115 conflicts in timing info

    Carburator pickup timing conflicts. 6 degrees ATDC per a stick-on label on the front of the engine 4-6 BTDC per my Seloc manual On Iboats forums I get the following 4-6 degrees ATDC - NOT BEFORE TDC per Thom who provided a set of 5 pictues with words to describe the whole timing procedure. 3-4...
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    1984 merc 115 reed valves

    Can the reed valves be inspected and/or replaced without removing the crankshaft, tierod and piston assembly?
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    1984 115 HP 6 in line Merc Timing Conflicting Information

    The timing of the the Primary Pick-Up is the subject. All sources set the IDLE STOP to align the embosed arrow to the embosed line With this complete, I have three sources of what the ignition timing should be at this point. I have a SELOC manual that indicates 4-6 degrees BTDC. I have info from...
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    1984 115 merc water pump

    Every part explosion I can locate and the forums talk about a copper water tube. Mine has a plastic water tube that is about the same size as the water pump housing output. The new pump kit has a bushing in the outlet. I guess that is when you have the copper tube. It appears from what I have...
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    84 merc 115hp erratic spark all cylinders

    All spark plugs out and connected to a grounded wire. Turn engine over and only some plugs spark. The plugs that spark change from time to time Sometimes only one sparks and some times more that one and not always the same ones. Problem is not just on the plugs on one switch box Oscilloscope...
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    1984 115hp Measure #6 Compression

    1984 115 HP Mercury Outboard. I can't see any way to get a compression checker into the bottom cylinder. The casework below the power head is in the way. It appears that I have to remove the power head to get at it. Also I have to remove the water jacket cover plate over the spark plug area...
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    84 MERC 6 CYL 115 HP IDLE STABILIZER

    Thanks to CC Marine response to a previous querry.<br />Had no spark on any cylinders<br />I disconnected the idle stabilizer wires from the switch modules.<br />the engine had spark and ran fine<br />Reconnected the idle stabilizer and it still ran fine.<br />So! Don't know what may be the...
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    84 MERC 6 CYL IDLE STABILIZER

    My engine had no spark on any cylinder. CC Marine was nice enough to help with their answer. <br />I disconnected the idle stabilizer and the spark was present and the engine now runs.<br />I reconnected the idle stabilizer. The engine still runs fine.<br />So! Now don't know for sure that was...
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    1984 MERC 6 CYL. NO SPARK

    Was running at end of last year. No spark on any cylinder. Stator and Trigger resistance checks match manual. Disconnected ignition switch/tilt switch wires from both switch boxes. The only thing I can see left which is common to both switch modules is the common connection between the switch...
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