Recent content by shellone

  1. shellone

    Carb problems on 1994 Mercruiser 7.4 Thunderbolt V

    It only leaked while priming. While running, I saw the mist in the carb as you described. I'll ask the technician who cleaned the carb about the floaters, thank you so much for the hint !
  2. shellone

    Carb problems on 1994 Mercruiser 7.4 Thunderbolt V

    Yes, the primer was between secondary fuel and c-pump. Normally the hose goes from fuel separating filter (against water) to c-pump.
  3. shellone

    Carb problems on 1994 Mercruiser 7.4 Thunderbolt V

    Thanks so much for the fast reply ! If the float level is set too high or the needle valve is not closing ... would it spill fuel also while running, e.g. idling - or would it spill only when priming ?
  4. shellone

    Carb problems on 1994 Mercruiser 7.4 Thunderbolt V

    Initially I had high fuel consumption, so I first changed the spark plugs and had the carb removed and maintained (Rochester Quadrajet, cleaned and repair kit applied). The accelerator pump gasket was stiff and did not close right (which we thought might be the cause for the higher consumption...
  5. 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 ?
  6. shellone

    Mercruiser 7.4 Carburetor 9777s needs repair kit

    THANK YOU VERY MUCH !!
  7. 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 ?
  8. 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 !
  9. 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...
  10. 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...
  11. 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...
  12. 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 ?
  13. 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.
  14. 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...
  15. 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...
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