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Recent content by BoatService

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    Oilpressure dial fluctuating

    Hi. Have a 4.3 mercruiser EFI. The analog oilpressure gage has started to show lower pressures the faster I drive. The dial is also vibrating/shaking as the pressure gage drops. Best pressure on idle. Just changed oil and filter, the issue was present before the change. Where do I start to look...
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    4.3 EFI cuts off suddenly at over 3000 rpm

    Hello. I have a problem that stumps me. My engine runs like clockwork on slower speeds, but as soon as i put her onto plane and reach approx 3200 rpm, the engine cuts off as if you would pull a plug out off a socket. No spluttering, just seems like all the electronics fails. Starts up no problem...
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    4.3 EFI fault codes 42 and 43

    Hi. My boat runs fine up to 2950 rpm. When I reach 3000 it cuts off instantly, as if you turned the key off. Engine restarts no problem and runs fine until 3000, when it cuts off again. This happened 4 times on the same outing, Limped home with lower revs. Attached a TechMate pro and got fault...
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    4.3 EFI cutting of randomly

    Hello. I have a curious problem with my motor. The engine can run absolutely fine for an hour, and the start to lose a bit of power. Rpms drop a few hundred and if I increase throttle at this time the boat falls down of plane. Turning the engine off for 10 sec and restarting fixes the issue. Up...
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