Recent content by Jeff J

  1. J

    MFS9.8 4 stroke races when choke is off

    As an afterthought, someone may have tweaked up the idle speed to mask what is likely a carburetor problem.
  2. J

    New Stuff on Vehicles likes/dislikes

    There is one thing about the newer tech that is nice… it runs much longer before it fails. I don’t know of very many pre 1980 vehicles that would run 200,000 miles relatively trouble free with only one change of spark plugs. Most cars today easily make that mark.
  3. J

    MFS9.8 4 stroke races when choke is off

    Sounds like it is running lean. No video to see.
  4. J

    Volvo Penta 5.0 GL valve cover leak

    In the valve cover gasket example I posted, the screw torque is 65 lbs/in by the book. The aftermarket silicone gaskets get 20-25 lbs/in. There should be something written somewhere if torque required is different.
  5. J

    I should add a 2nd battery...

    We have had bilge pumps kill batteries here with boats parked on lifts in covered slips and good boat covers (not generic fit all) installed. You wouldn’t think much water would get in but it does. I have also encountered bilge pumps running with no water to pump and the switch off because of...
  6. J

    Volvo Penta 5.0 GL valve cover leak

    Was there a gasket material change? On some applications I have worked, a paper or fiber gasket was replaced with a thicker silicone gasket. The silicone gaskets leak like a sieve because they distort and squeeze out of position when torqued to the book specifications. The proper torque for the...
  7. J

    Fish finders

    I have some electronics on my boat. I catch more bass beating up the banks when the screen shows no fish than I do when the screen is full of fish. I bought Live Scope a couple of years ago. I shouldn’t have because it was out of my budget by a good bit. The hope was to help me find crappie...
  8. J

    ‘77 Johnson 70hp Starter Troubleshooting

    I am not familiar with solenoids that do not ground through the mount. Everything else I have worked on sends “I” to the coil, a light or it is left empty because it has bus voltage when the solenoid is engaged. The diagrams I reviewed today confirmed it for me. I don’t have the diagram for this...
  9. J

    ‘77 Johnson 70hp Starter Troubleshooting

    What I don’t see in any wiring diagram is where any small post on a solenoid runs straight to ground.
  10. J

    ‘77 Johnson 70hp Starter Troubleshooting

    My bad. I looked it up. I was thinking master solenoid. Starter solenoid gets power.
  11. J

    ‘77 Johnson 70hp Starter Troubleshooting

    Deleted
  12. J

    Mercruiser 4.3 EFI leaking fuel but can't find leak??

    Could it becoming from the fuel pump? The 4.3 EFI here had the pump conveniently located on the port side behind the motor mount with a plastic cover hiding it. There wasn’t any access to inspect it. Replacing it required the motor to be lifted.
  13. J

    Oil selection

    I hope this is the correct page from the correct manual
  14. J

    Oil selection

    I tried to attach the manual on my phone but the file is too big. It should be available for download on the Volvo Penta website.
  15. J

    Oil selection

    Or a full synthetic alternative.
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