Search results

  1. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    ok, I am going down tomorrow to check all of this. My understanding is that: My engine was running, but kind of slowly lost the ability to run over about 10-15 minutes of running time. I tried starter fluid in the spark arrestor which points to something other than fuel, which leaves: spark...
  2. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    ok, thanks. I'll do that. Just to confirm a few things (and some new information): 1. By spark gap tester, do you mean an inline spark testing light, or one of those testers that actually has a gap for the spark to jump? I have both so happy to test both. If you mean the one with the actual...
  3. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Pretty annoying update... now the motor won't start at all. The only thing I can think of is that for a few days I've been running it off of an auxiliary tank (one of those 6 gallon red outboard tanks). I can't imagine this would make it not start. A hose comes out the built in tank and goes...
  4. S

    Flushing Sea Ray 250 Sundancer in salt water... How To, and is it necessary?

    Oh I didn't realize it was a whole "send to the lab" thing! I will have to do that, thanks for the pointer. I will also keep up with maintenance as you suggest. Thank you
  5. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    @alldodge Yes, I have mechanical controls. When you say scan the motor for codes, do you mean like with an OBD-type of scanner? Is there an OBD port on these, or is it some specific mercruiser thing? Thanks for all the info. I will check the easy stuff first.... new gas from an external...
  6. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Oh! I don't think it's that I don't want to provide it, it's just that usually folks want the serial number range and that's good enough :) Just a simple misunderstanding, glad I asked. My full serial number is 0W611224
  7. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Well, I have new information. I put a little seafoam through (gas and a little in the oil) just to clean it out, give it the best chance of running well. Ran it for a few mins the other day just to get the seafoam through the system and it ran like normal, minor misfires but generally okay...
  8. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Darn.... is this cap compatible? I spent like $180 on a mercruiser brand cap (or maybe it was sierra or something, either way it was well over $30). Oh well, live and learn I guess. Good to know for next time
  9. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Ah yeah, I might not have the right terminology but I definitely have the crab cap, I had a new one put on like 2 weeks ago :) 0W61xxxx
  10. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Finally got my friend with a fuel pressure gauge to stop by. Seems to be reading around 45PSI so I doubt fuel pressure is the issue? Really good thought though, appreciate it
  11. S

    Drying out interior foam (got oily or wet under table pedestal?)

    Thanks! Makes sense. Yep, good advice. Thanks Luckily no soft spots on the floor, nothing else really seems to be mushy. I'll take a foam sample and see what we're working with. Thanks
  12. S

    Drying out interior foam (got oily or wet under table pedestal?)

    Thanks for your response, Mike. I have to admit, I'm not sure exactly how to interpret this. I can't tell if you're saying: 1) Enjoy your boat.... while you still can. Your stringers are rotted out and the floor is rotted out and there's nothing you can do so just have fun until your boat...
  13. S

    Drying out interior foam (got oily or wet under table pedestal?)

    Hello, My boat ('98 sea ray sundancer 250) seems to have a wood floor covering foam-type of construction. There is a pedestal for the table that is not flush mount, there's like a protrusion under where it mounts to the floor for the pole to sit in. This is not my exact pedestal but it shows...
  14. S

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Hello, I have a 2005 Mercruiser MPI 5.0L (running a bravo 3, if that matters). Seems to idle fine, but as soon as it goes into gear, it starts misfiring. This motor is pretty new to me so I don't know the full history, but it did just get a new distributor cap and rotor and new plugs. I am not...
  15. S

    Flushing Sea Ray 250 Sundancer in salt water... How To, and is it necessary?

    Yep, this makes sense, thanks! Just one question. You mentioned a "sodium analysis" as the best advice. Does this mean that if I do a sodium analysis at the end of each season, assuming I use my boat mostly on the weekends so it's not like I'm flying through hundreds of hours a week as a...
  16. S

    Flushing Sea Ray 250 Sundancer in salt water... How To, and is it necessary?

    Thanks for the detailed reply! sorry for my ignorance, but I'm a little confused about something. This makes it sound like IF things are plumbed in prior to the impeller, a garden hose just won't cut it. But my understanding was that it's totally fine, and even a good way to flush, to hook up...
  17. S

    Flushing Sea Ray 250 Sundancer in salt water... How To, and is it necessary?

    So... it turns out I have questions about this. Maybe they're dumb ones! One, it sounds like you're suggesting putting it "after" my pump... I have a bravo 3, so my impeller is on my engine. Do you mean putting it between my impeller and my thermostat? Is that right? Two, what happens if my...
  18. S

    Flushing Sea Ray 250 Sundancer in salt water... How To, and is it necessary?

    Interesting. Yeah this makes sense, although to @Lou C's point, is this mostly for dry docked boats? I wonder if boats that stay in water just keep their water for the most part. Ah sorry, yeah it's docked. I guess that was confusing phrasing. It's docked in saltwater. But good to know that...
  19. S

    Mercruiser MPI 5.0L w/ Bravo 3 outdrive not going into gear... lower shift cable is very hard to shift

    Thank you for all your help, @Fun Times. I will give it a few more days to loosen up (either the gunk inside of the drive or the cable... I've been going down most days and dropping more oil down the housing, and manually putting it in and out of gear. Fingers crossed that it just magically...
  20. S

    Flushing Sea Ray 250 Sundancer in salt water... How To, and is it necessary?

    Hi all, I have a 1998 SeaRay Sundancer 250 w/a 2006-ish (maybe 2005-2007) mercruiser MPI 5.0L and a Bravo 3. I keep it in a saltwater marina. My boat has a little flush port on the rear of the transom. I can hook up a hose, and this port ties right into my cooling system. Just a few...
Top