Search results

  1. J

    5.0 GXi oil extraction

    Thanks for the tip. I will have to crawl in there with a flashlight and mirror or videoscope and have a look.
  2. J

    4.3 Mercruiser fuel supply issue

    Is it supposed to a plain copper washer or a true crush gasket. If the latter, I may have one out in the hangar.
  3. J

    4.3 Mercruiser fuel supply issue

    I ended up turning this one over to the local Mercruiser service center for lack of tools/equipment to remove the outdrive and raise the motor shortly after my last post. I don’t have what I need to do it “right”. Apparently there were some missing parts because they called me asking about a...
  4. J

    5.0 GXi oil extraction

    I can’t speak as to oil change frequency before 3 years ago but every 100 hours or once a year since I got involved with the maintenance. The ski boats see just under 100 hours a year since they started bringing in more pontoon boats. The 2 outboard ski boats are more popular than the I/O boats...
  5. J

    5.0 GXi oil extraction

    Should be correct. I didn’t measure either but it looks exactly like the one in the boat I returned to the lake yesterday. Boat is a 2015 model with 1029 hours so who knows? But I fail to see how it could affect my ability to remove oil from a boat sitting level on the trailer. How could not...
  6. J

    5.0 GXi oil extraction

    I checked the oil level before attempting extracting the oil. The dipstick showed full but I am sucking air. I have only managed to remove about 2.5 quarts after an hour last night while the oil was warm and 2 hours this morning with the oil about 50 degrees. I am using a hand pump vacuum...
  7. J

    4.3 Mercruiser fuel supply issue

    Yeah, I won’t own a newer I/O for myself. It’s bad enough dealing with it for pay. The next one in line has a Volvo Penta needing a trim pump. Not a terrible job but a lot of blind groping around while laying on top of the motor trying to get it installed and hooked up. Rumor has it this outfit...
  8. J

    4.3 Mercruiser fuel supply issue

    I am bad about using proper terminology. Did not know better most of my life and bad habits die hard. It is an I/O. I have no idea what disconnecting the drive entails so I guess I will be searching the manual and youtube for that too. I let the local service center do engine removals, gimbles...
  9. J

    4.3 Mercruiser fuel supply issue

    I did get the cover off. Accidentally knocked the bottom loose then used brute force to twist it out. Didn’t help much. One fuel line I can see needs a key(?) to remove so a trip to NAPA tomorrow for that. The line on the regulator is a flare nut. I have SAE flare nut wrenches but none in...
  10. J

    4.3 Mercruiser fuel supply issue

    Pulled the cooler hoses and got some free movement but now it is hung up on the oil dipstick tube in a tighter spot than it started so I still can’t get the cover off the pump. I hate to give up the income but this thing is getting really close to finding its way to a mercury shop.
  11. J

    4.3 Mercruiser fuel supply issue

    “If you disconnect the return line coming from the pump back to the fuel filter (arrow pointing in on filter head). Seal off the filter head and seal off the return line. Have gauge on fuel rail and turn key on/off, maybe a couple times to build pressure. It should go above 43 psi but try not to...
  12. J

    4.3 Mercruiser fuel supply issue

    Thanks, I reworded a little in my last post which messed up a quote but I didn’t really change what I was trying to say. I can check for air in the fuel rail before I drop the pump. The last time the engine was run was to trailer it. I don’t believe I have turned on the key since.
  13. J

    4.3 Mercruiser fuel supply issue

    I installed a primer bulb between the tank and filter for testing at the dock. It allowed me to start and drive the boat to a ramp. Normally I would think it is safe for me to assume any leaks would show when the system is pumped up tight with the bulb. Is that wrong on these? I have been a...
  14. J

    4.3 Mercruiser fuel supply issue

    Thanks, I didn’t lay my head on floor to look past the oil lines.
  15. J

    4.3 Mercruiser fuel supply issue

    Can’t get the cover off. I don’t have the reach/access to the bottom of the cover. Even if I did there is less than 1/2 inch between the boat and the cover. The only thing I can think of is to pull the motor but I am not set up to do that. Is there a work around for the fuel pump?
  16. J

    4.3 Mercruiser fuel supply issue

    Perfect timing! I was trying to find a way to test which is bad. I also just noticed the diagram in the manual also shows a filter under the regulator. It appears the steering hoses and a cooling hose are my biggest obstacles to seeing and removing the cover. The oil hoses pass above the...
  17. J

    4.3 Mercruiser fuel supply issue

    Just letting me know the cover pops off helped. The diagrams in the book aren’t much help. Thanks. Motor hot now. Will tie what I can out of the way and lay down in there again after it cools some.
  18. J

    4.3 Mercruiser fuel supply issue

    It’s a 4.3. coolant lines, oil, lines, fuel tank, fill, and vent hoses all in the way the fuel line from the filter crosses under the motor and comes up behind that motor mount and goes into something covered by a black plastic box. After seeing that, I decided to load it on a trailer and take...
  19. J

    4.3 Mercruiser fuel supply issue

    Decided to dig into it. There is supposed to be a fuel pump here somewhere. That may be it behind the motor mount. Can’t see what holds it. Some days I believe the only good engineer is a dead engineer. There ought to be a law that requires them to service what they design.
  20. J

    4.3 Mercruiser fuel supply issue

    I hesitate to leave the hatch open while running wide open across the lake so I can read the gauge. Hatch removal is a PITA in the shop let alone in a slip. It pretty much has to be losing pressure. The symptoms are the same as a clogged fuel filter. Let it set when it is primed or pump the...
Top