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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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    Unstable idle

    Hi. I have a 2002 Mercruiser 5.0L Gen+ with a Mercarb 2 barrel carburetor. Last year just before the season ended the carb got a new kit installed together with a ultrasound clean. That was because the rev jumped to 1500 rpm when put in neutral for 5-10 seconds and thereafter settled with around...
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    OMC 2.3L manifold nuts

    Hi. One of my 5 manifolds nuts needs to be replaced. I believe that the part no. is 0912506. Many US shops have them, but I live in Denmark and can't find a shop who has them. I dont think that they are so special, but dont seems to be metric, so if someone could tell me the size and thread type...
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    Remove Alpha One Gen 2 sterndrive

    Is it possible to remove my my Alpha One Gen 2 drive without draining the oil. I have an external oil reservoir inside the engine compartment. The drive sits on a Mercruiser 5.0L Gen+ (2001). The oil is almost new and checked ok. So if possible i would just put gear in forward, remove speed...
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    How to disengage gearshift on a Bayliner 1750 Capri

    I'm in doubt about how I am supposed to rev the engine without engaging the gearshift on my Bayliner 1750 Capri with OMC 2.3L engine from 1988. The throttle handle, which is a US Marine, has an nonworking button underneath the horisontal part of handle. Should that be the button to disengage...
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    Alternator V belt came off

    Today the V belt on my Bayliner Capri 1750BR 1988, OMC 2.3L engine fell off. The belt looks extremely used, so I will replace it. When I search the internet all sites I have found says 43,5" 29/64 but the belt that fell off is (was) 10mm x 1075mm (optibelt MARATHON 1 AVX10X1075). The old belt...
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