Recent content by dinopaul

  1. dinopaul

    Mercruiser 7.4 MPI (1998) red top covers Red VS Blue

    I currently have the Blue with shaft, need to change the ECM ?
  2. dinopaul

    Mercruiser 7.4 MPI (1998) red top covers Red VS Blue

    Hello everyone, I need to change my tired engines, two 1998 Mercruiser 7.4 MPI in shaft line my engines are with blue top covers and I found a pair of 7.4 MPI Mercruiser but with red top covers, I was told that with the red top covers was for engines with Sterndrives, anyone know if I can make a...
  3. dinopaul

    7.4 mpi port side is almost too hot to keep your hand on

    I removed the two elbow and the two risers they are beautiful, I did not dismantle the manifolds but they are beautiful on the top and the pipes, the boat is still in fresh water. the smoke is vapor, it arrives after 10 minutes at 800 rpm when elbow becomes very hot +/- 100 ° and when I...
  4. dinopaul

    7.4 mpi port side is almost too hot to keep your hand on

    in line propeller shaft, I have two engines and my problem is on the starboard engine on the port side
  5. dinopaul

    7.4 mpi port side is almost too hot to keep your hand on

    hi, during an outing, one of my engines started to smoke (white smoke) the engine temperature was at 170. I thought of a head gasket and when I got back I checked the oil and it was clean, I took the compression and all 8 cylinders are at 120-125 psi. on both engines Exhaust, manifold, riser...
  6. dinopaul

    Mercruiser 7.4 PMI problème

    I don't know if it's mefi3 or 4 the part# is 861736R1 and they are reman
  7. dinopaul

    Mercruiser 7.4 PMI problème

    ecm is new it have 10h, the relays are ok i tested them, i am going to the boat tomorrow i will look for the pump and the wiring
  8. dinopaul

    Mercruiser 7.4 PMI problème

    thanks I must continue my research
  9. dinopaul

    Mercruiser 7.4 PMI problème

    I took a relay on the other engine and always nothing the fuel pump did not start, I read elsewhere that IAC could cut the fuel pump, I therefore dismantle the covers to see where was the IAC and I saw that the ARRESTOR-FLAME was very very dirty and almost clogged, in time the pump started and I...
  10. dinopaul

    Mercruiser 7.4 PMI problème

    I haven't tested yet, I'm going to the boat tomorrow and will test. Thanks
  11. dinopaul

    Mercruiser 7.4 PMI problème

    Hello no, but does a relay work or does it not work so it should not have intermittent? Thank you
  12. dinopaul

    Mercruiser 7.4 PMI problème

    Hello everyone, I have a problem with one of my two engines, 1998 Mercruiser 7.4 PMI, it starts without problem and after a few minutes it stops, if I want to restart it I no longer hear the fuel pump, I am waiting for a ten minutes and the pump restarts and the engine also for a few more...
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