Recent content by sdoomaha

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    56 Johnson 30 horse - impellor keeps going out

    1956 Johnson long shaft 30 horse. Have replaced the impellor 3 times in the last 30 days. The metal center of the impellor keeps twisting loose from the actual rubber impellor. Thought it was using aftermarket impellor, but used OEM last 2 times. Only got about 20 minutes of use from the last...
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    Service Manual 1998 Merc 250 hp 5.7 liter

    Anyone have this saved they could send me? Just purchased a "new used" boat, and I know I'm going to need it sooner rather than later. Lund 21 Tyee Thanks all! Steve O!
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    74 Johnson 25 hp kicks out of gear at max throttle

    Model 25R74M just bought on a very old pontoon. Starts and runs well, although underpowered for a 24 foot pontoon. Reverse, it never comes out of gear. Forward, anything half throttle or more will kick in and out of gear, the more power the more often it kicks in and out. Disconnected the...
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    VHF antenna connector - bad reception

    Searched forum, but couldn't locate an answer to my specific question. Recently installed a new marine radio in my boat. Saved a few $$$ by purchasing a 4 ft Shakespeare VHF antenna that had no connector on the end of the coax. Purchased the Shakespeare gold connector and followed installation...
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    Frost plug in head of 470????

    Loaned my 84 Cheetah with recently rebuilt 470 to a friend. I know I know....friends don't let friends drive 470s....but hey. He is now out of town and tells me it is leaking "water" from a hole in the head on the exhaust manifold side all the way back. (There is no water circualting through...
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    Torque specs 470 - help with my stupidity

    Changing head gasket on my 470. Putting it back together tomorrow night. Stupidly I never downloaded the manual previously from the adults only section, just opened and viewed it. Anyone have torque specs for 1984 470 for: Head Intake manifold Exhaust manifold Rockers go to "0" lash and...
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    Need a 470 heat exchanger - Reccomendations?

    We pressure tested the coolant side of the 4" heat exchanger...loosing pressure, so I now know where the coolant I am loosing is going...apparently a leaking tube in the heat exchanger since it is not leaking out through either end cap. Local radiator shops won't touch it. Been watching...
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    Atwood Water Separator - Watch out

    1994 Caravelle w/ 4.3 alpha one gen 2. Got out of storage today, charged batteries, hooked up the muffs, fired right up, ran and idled great. Warmed it up, changed the oil and filter. Started up again to make sure I had no oil leaks, runs and idles great. Pull the Mercruiser water separator...
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    Tilt and Trim fluid

    '94 Caravelle 4.3 Alpha - When winterizing, I noticed I could not see the level of fluid in the tilt and trim pump tank. Opened it up, and it was full, but the fluid has a definite light colored milky appearance, very similar to the lower unit gear lube when it has taken on water. Cannot find...
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    New Fuel Pump - Need to pime?

    Installing new fuel pump in a '94 4.3 Merc. Sorry for my stupidity, but does the new pump need to be primed with fuel? One part of me says no, it must be able to draw when the fuel drains down below the pump from gravity from sitting. The other part of me thinks the pump possibly wouldnt be able...
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    4.3 dependability? - Thinking of buying

    New to the forum, thanks in advance for any input. Currently runing a 84 Cheetah with a 470 in it. Looking at possibly purchasing a '94 Caravelle with a 4.3. I and no friends have experience with this motor. I know it has been out a long time, so it must be pretty good, but would still like to...
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