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  1. K

    Repower Question - Merc/Volvo swapover

    I have a 2004 Trophy 2359 with a 5L Merc I/O with a Bravo 3 outdrive. Engine code OWO18920 I have access to a nearly new Volvo 300 V8 (see pic below) engine and outdrive for a very very very reasonable price, but I have no idea if this is an exact fit that can be straight swapped... or if it's...
  2. K

    Temperamental Starter

    2004 Trophy 5.0L Merc # OWO18920, Bravo 3 Outdrive Starter works great sometimes, and takes 20 key-turns at others. You can hear the starter click with every key turn, and when it finally does decide to engage, it fires up instantly and without hesitation. Started doing this last July and...
  3. K

    Negative Battery Cable issue

    2004 Trophy 2359 w/5.0L Merc and Bravo 3 outdrive So it took me a new neutral safety switch and then a new starter (6 hours of my life I'll never get back) in order to figure out that my negative battery cable is corroded where it goes into the terminal eye, and isn't connecting well enough to...
  4. K

    Brand new alternator, super hot to the touch

    2004 Merc 5.0L MPI, Bravo 3 outdrive in a Trophy 2359 Just put in a brand new alternator (old one got seawater in it when the water pump went out) and it immediately got super hot to the touch. Might also be putting out higher voltage than the old one. Is this a problem with the alternator...
  5. K

    No power to ignition switch, other electrical still works

    2004 Merc 5.0L MPI, Bravo 3 outdrive in a Trophy 2359 Had just replaced the raw water pump and an idler pulley. Took it out for a test ride and after a few minutes, my voltage reading dropped to zero but everything was still working. A minute later the engine completely dies and all gauges go...
  6. K

    No power to ignition switch, other electrical still works

    2004 Merc 5.0L MPI, Bravo 3 outdrive in a Trophy 2359 Had just replaced the raw water pump and an idler pulley. Took it out for a test ride and after a few minutes, my voltage reading dropped to zero but everything was still working. A minute later the engine completely dies and all gauges go...
  7. K

    5.0 L Merc Gauge Puzzle

    2004 Trophy 2359 w/Merc 5.0L Dewinterizing my boat and my gauges aren't working. I sent the fuel/volt/speed gauge in a few weeks ago (when I noticed the fuel gauge wasn't reading) for repair. Got sent a new set, and the fuel gauge was reading in reverse, so I sent it back, but the guy tested it...
  8. K

    TR 1 Autopilots

    Has anybody had any experiences with sending TR 1 autopilot parts back to Garmin and getting replacements? I remember reading somewhere they they will exchange old parts for new at a considerable discount over just buying new parts. Thanks
  9. K

    Circ pump squealing??? (2004 Merc 5.0L MPI)

    Merc 5.0L MPI, serial # OWO18920 So I'm getting a relatively minor squeal at mid-range rpm (1200 or so) and higher. It sounds like its coming from the circ. pump. Idler pulley, tensioner pulley, and PS pump have been replaced in the last 2 months, and the raw water pump replaced last year...
  10. K

    Serpentine belt walking forward off of pulleys

    2004 Merc 5.0L MPI serial # 0W018920 So, I just had my engine pulled for a leaky oil pan and while it was out, I had the power steering pump replaced along with the, tensioner pulley, alternator pulley, idler pulley, crankshaft pulley, and circulation pump pulley. The serpentine belt is now...
  11. K

    Overheating... thermostat??? 2004 Merc 5.0L MPI

    2004 Merc 5.0L MPI serial # OWO18920 in a Trophy 2359 So, I've been battling leaky oil pans, malfunctioning gauges, and low oil pressure due to overfilling. The engine was on a pallet for the past 4-5 weeks... Still only have about 10 minutes total running time this season. Got all that...
  12. K

    Low Oil Pressure..... safety/restrictor?????

    So, I just had my leaky oil pan replaced (cost over $1000 with the pulling of the the engine...) and now my oil pressure is low, like around 20. Boat idled fine, putted around for a bit before giving her throttle. She came "almost-just-barely up on step" and the engine started sputtering. I...
  13. K

    Merc 5.0L Tach

    Trying to figure out how the tach pickup works on a 5.0L Merc EFI? My tach has completely stopped working (reads about 800 RPM when running, regardless of speed and actual RPM) and I have NO CLUE as to how it works or where the pickup unit is. 2004 Merc 5.0L MPI, serial # OWO18920 Any help or...
  14. K

    5.0L Merc Oil Drain Hose Diagram Help

    2004 Merc 5.0L MPI, serial # 0W018920 in a 2004 Trophy 2359 I have a static oil leak that loses 4-5 qts when not running. Oil pan hole or drain plug issue seemed like the obvious answer, but I looked at this diagram...
  15. K

    Oil in the bilge

    2004 Merc 5.0L EFI in a Trophy 2359 (Bravo 3 outdrive) I recently turned on my bilge pump and had a nasty sheen of oil appear next to my boat. After investigating the bilge, there is visible oil. My bilge is almost always dry, so I have no idea how long this problem had been going on. After...
  16. K

    2004 5.0L Merc... Tachometer not working

    I'm totally clueless about tach's and how they work. Mine has always worked fine, but now just reads about 800 RPM whether I'm at idle or at WOT, both while moving and while revving out of gear. Is there a sensor somewhere on the engine? Someone said maybe at the alternator? I know...
  17. K

    Merc Bravo 3 Anodes... Aluminum?

    So, I found a service bulletin from Merc stating that Alpha, Bravo 1 and Bravo 2 have all changed materials from Zinc to Aluminum Alloy. Does this apply to Bravo 3 as well? I can't find a service bulletin for the Bravo 3. Did this service bulletin come out before the Bravo 3 did? Is there...
  18. K

    Fuel pump shredding..... metal flecks?

    Merc 5.0L MPI, serial # OWO18920 I've recently remedied a bad o-ring that was letting water into my gas tank. Pulled 2 gallons out of the gas tank and another 6 oz from the rail/fuel cooler end. My bogging problems weren't completely fixed, so I checked my fuel pressure today and it's 15-16...
  19. K

    Checking fuel pressure

    2004 Merc 5.0L MPI Looking for some advice on checking my fuel pressure. Does anybody know what the psi "should" be in my system? Do I check it at idle? While the boat is under load? Both??? Thanks
  20. K

    Water in the....... EVERYWHERE!!!!!

    2004 Merc 5.0L MPI Pulled about 2 gallons of water out of my tank a few weeks back. Boat ran great for a few trips and then started bogging again. Pulled out another half-gallon of water and replaced the o-ring in my gas cap. Haven't had any water in my separator since, but the boat still...
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