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    Mercruiser Alternator Issues and Wiring

    I've got a Mercruiser 5.7/V8 Alpha One Thunderbolt engine, serial number 0C764258 with a Mando #AR-150 alternator. The boat is over 30 years old and I'm guessing this is the original alternator. I was on a fishing trip this last weekend and had charged the battery prior to leaving. I was...
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    Accidentally removed nozzle from Johnson 9.9 carb

    Long story short, I thought the nozzle that connects the the float bowl to the carb was the main jet and I twisted it loose. I know, rookie mistake but what's done is done. How do I get it back in? My assumption was it was threaded but I can't seem to twist and get threads to grab. Just want to...
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    1986 Johnson 9.9 J10RCDB main jet

    My grandpa passed away a couple years ago and while cleaning up some of his stuff last week I found an old Johnson 9.9 in a corner and my grandma told me to take it and get it running. After a little bit I got the darn thing started, couldn't believe it. I'm getting into the carb, cleaning it...
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    Extreme rust removal tips

    I wasn't really sure where to post this question but since it's on a mercruiser motor I thought I'd post it here. I've removed the manifolds on a 1990 mercruiser 5.7. Previous owner had cracks in the manifolds but ran it for years without repairing it (I believe they tried welding them at some...
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    1990 Mercruiser 5.7/v8 rusted exhaust manifold bolt

    I bought a Bayliner 22' capri earlier this year. I knew the manifolds needed to be replaced. During my winterizing I realized one of the manifold bolt heads is severely rusted. This is going to be a job for the spring but want to get a plan off attack for when I dive into it. What is going to...
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    Mercruiser alpha one small amount of water in shift cable housing

    I'm doing my winterizing for the year and removed my lower unit on the out drive. When I got into it there is a small amount of water around the shift cable in the shift cable housing in the lower unit. There isn't any water in the bellows. Where could this water be coming from? The the thin...
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    1990 merceriser alpha1, gear oil in bellows and yoke seal leaking air

    ​ 1990 merceriser alpha one 1990 merceriser 5.7l I recently bought a boat. He stated he had recently changed the bellows himself so I wanted to check to make sure there was no water in it and instead of finding water I found a bunch of gear oil. He said he has never had gear oil in it before...
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    Help with MerControl

    Alright all, i have used this site extensively since I bought my first boat a couple years ago but this is my first post. My boat has a mercontrol similar to the one linked here. I'll get pics of mine later today. The main issue I'm having is that the handle is loose in the radial direction...
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