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    Knocking sound from my Alpha One Gen 2

    Just to be sure. I can put a water hose directly into the red marking and start engine? (random picture, not my transom)
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    Knocking sound from my Alpha One Gen 2

    Yes. Did store the drive without oil. I will check oil
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    Knocking sound from my Alpha One Gen 2

    When i took oil off last season it looked fine with no debris. And then filled fresh oil 3 weeks ago but i will drain it and have a look. I can add to the story that i hit a stone last season so my stainless steel prop took a hit, but didnt feel anything wrong rest of the season, but i suspect...
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    Knocking sound from my Alpha One Gen 2

    No knocking sound when not in gear. But knocking sound in both forward and backward gear
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    Knocking sound from my Alpha One Gen 2

    Did pull the drive last weekend. No signs of ujoints hitting something. Has just filled the drive with oil after winter storage. There's was no debris when unloading oil and it passed the pressure test. How to check gimbal and could it be it when the knocking is only there when in gear?
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    Knocking sound from my Alpha One Gen 2

    My Alpha drive makes a knocking sound (it can also be felt in the hull) that It hasn't done before. I have owned the boat 10 years. On land on muffs, when put in forward or backward gear a knocking sound appear as heard on attached file. Does anybody have an idea what it could be? I have been...
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    Engine issue— Mercruiser 5.0L, 305, 2 barrel mercarb

    I went out the day after, and it all seemed normal again, no dying engine. It was though a very hot day when it happened, so maybe that could be the cause. It's hard to reproduce because I was moving with 6 knot about at least an hour both times before it happened and the temperature has gone...
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    Engine issue— Mercruiser 5.0L, 305, 2 barrel mercarb

    Around 520 hours. 320 hours since last carb service, in 2017. Distributor, distributor sensor and spark wires changed this spring.
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    Engine issue— Mercruiser 5.0L, 305, 2 barrel mercarb

    Its look clean to me. No separation. Other thoughts?
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    Engine issue— Mercruiser 5.0L, 305, 2 barrel mercarb

    Twice today, with about 4 hours in between, I was cruising at 6 knots when the engine suddenly lost power. It started running really rough and then died completely, with a small puff from the carburetor. Luckily, it restarted without much hassle and I was able to continue sailing each time. This...
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    Engine cant idle

    Ha ha, it was the hose. I believe I must forgot to put it back on after I have detached it. Now the engine runs smooth again. Thanks
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    Engine cant idle

    I think its just some oil liquid shaking on top of the engine
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    Engine cant idle

    Well spottet. I think you are right and i had actually the hose off resently. I will look into it next time i’m at the boat, hopefully tomorrow
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    Engine cant idle

    What's going on here? There's no problem in starting the engine (after a couples of priming), but it keeps dying soon after as heard in video 1. I can keep the engine running if I keep it above 1500 rpm. Video 2 shows how revs is going up and down by it self, before it dies (when the engine is...
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    Intermittent engine alarm

    First my engine is a Mercruiser 5.0L carbed from 2001. SN 0M359543 The engine alarm came on/off starting from around cruising speed (3000 rpm). I then changed the water temp sensor (the one with yellow wire), and it seem to be working for a couple of days. The alarm only sounded when I started...
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    Analogue to nmea2000

    Has anyone tried or know about the "KUS Analogue NMEA2000 Converter NKC42"? I would like to get my analogue oil pressure and water temp gauges connected to my nmea2000 network. I have a carbed 2001 Mercruiser 5.0L Thunderbolt V engine in a Rinker 232cc. It seems that it should be able to connect...
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    My alternator produced up to 16 volt and was very hot.

    Yesterday after 2 hours run with cruising speed, we stopped, with engine off, for about half an hour, just outside out harbor. The last run into harbor i gave it full throttle and trimmed the drive. Just when I pushed the trim button all electricity disappeared for a short moment (my...
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    Mercruiser alarm stopped working, kind off

    I have a Mercruiser 5.0L carbed engine from 2002 where the alarm buzzer suddenly has stopped working. When I put ignition on it wont go on as it used to. But when the engine is running and I ground the drive tube it goes on, and also when i ground the oil level sensor. So it seems that it's just...
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    Spark plug gap

    I was about to change my spark plug on my mercruiser 5.0L (2002) so I bought the recommended ngk’s but as seen on the picture there’s a visual gap difference. Should I go with the new ones as is or re gap them as the old ones? (By the way does the old ones look ok). Thanks
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    Leaking lower shift shaft Alpha One Gen 2

    During the summer i had to refill a little gear oil at my alpha one drive twice, so now it was time to check for leaks. As you can see at the picture i have a leak at the lower shift shaft. The manual say to split upper and lower unit and remove the 2 screws holding the shift shaft assembly and...
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