Recent content by shellone

  1. shellone

    Mercruiser 7.4 Carburetor 9777s needs repair kit

    Thank you for the hint, unfortunately I am presently in Europe so I will need to wait for shipment from China ! Would a kit for Edelbrock 1410 fit ?
  2. shellone

    Mercruiser 7.4 Carburetor 9777s needs repair kit

    THANK YOU VERY MUCH !!
  3. shellone

    Mercruiser 7.4 Carburetor 9777s needs repair kit

    A 7.4 engine serial OF079329 from I believe 1994, probably with the original stock 4 barrel carburetor. The carb has number 9777s 0983 carved in the front. Is this number enough to identify what make and model it is so I can start searching for a repair kit ?
  4. shellone

    Battery disconnect while running engine

    Thanks, again, yes I found it should be a 555 but then detected a sticked ECM0501 ... but I guess I can try from here! Thanks, again !
  5. shellone

    Battery disconnect while running engine

    Thank you, alldodge, would really like to read the ECM ! The throttle is mechanic, two cables going to shift and carb i.e. ignition. The ECM is as pictured below; can you determine which model it is, whether it has an interface and what scanner to buy ? That would be awesome ! I am not allowed...
  6. shellone

    Battery disconnect while running engine

    Thank you very much, did just that, disconnected the battery and turned the key to on. In fact, this morning the engine was just fine ... but I like a basic 'cleaning' procedure. I did turn on the radio as you suggested, but from which circuit would it drain existing stray voltage, from the...
  7. shellone

    Battery disconnect while running engine

    Thank you for your incouraging information. Problem that show up then hide then come back to haunt me are my nightmare. Believe it or not I had one of those with a Evinrude 521 from 1988, a crack in the silicone of an ignition coil and entering moisture. Worked like a charm at ties that would...
  8. shellone

    Battery disconnect while running engine

    Thank you so much for the explanation. What means rebooting, is it any engine start up or do I need to do more then switching the engine off and back on ?
  9. shellone

    Battery disconnect while running engine

    The alternator seems to be working ok ... the battery has 12.7 when offline; as soon as the engine runs, the voltage shows 14.4. To me, it means it is charging; and the fact that revving the engine won't bring it over 14.4 means that the regulator should work, too, IMHO.
  10. shellone

    Battery disconnect while running engine

    Next day's wisdom ... at land, engine starts as fine as ever, idles at 720 rpm, fuel consumption varies between 5.8 and 5.9, voltage exactly 14.4 all the tie, no matter what rpm. Fast throttle up he takes without drowning in the least, voltage stays a7 14.4. Put the boat in the water, runs...
  11. shellone

    Battery disconnect while running engine

    While running a BWA 8 meter rib with a Mercruiser 5.0 MPI in rough weather I had sudden power loss and noticed the voltage rise over 14.4. Throttled down to idle and immediately checked the battery to notice that the a ground connection looked loose. Tightened the screw and the voltage was back...
  12. shellone

    Buzzer gone wild, will not go off

    Thanks for your patience ! In the end I removed it, cut the wire and ... found out that the buzzer kept buzzing, the alarm would not work, the cable was ok. It has 12 V (black and red) and a brown wire that should trigger the alarm and the pump in case of high water. Shorting brown and red on...
  13. shellone

    Buzzer gone wild, will not go off

    Sorry to bother (you), again ... I seem to have found something that might be a high water alarm; it is to the front of the engine compartment, a black box, square shape, with a black round 'cable' or hose that leads through a conduit to where I cannot follow. Does that feel like a high water...
  14. shellone

    Buzzer gone wild, will not go off

    The buzzer goes on only if I turn the key to on ... and I still have to install a high water alarm (which will have it's own buzzer. Trying to access the ignition key lock ... and the buzzer itself.
  15. shellone

    Buzzer gone wild, will not go off

    I actually did not follow the tan/blue wires but tested that there is no contact between the ends and ground. I now have to figure out how to access the back of the cockpit which seems to be behind a toilet wall to see if it is the engine's buzzers or, possibly, some other buzzer. Thank you...
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