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  1. Fun Times

    06' 5.0 MPI intermittent fuel issue

    Sounds like you may want to start off testing what the fuel pressure is by either buying or maybe renting a fuel pressure tester kit from an auto parts store. An Actron fuel pressure tester kit should help you out that fits your schrader valve size...
  2. Fun Times

    Fresh Mercruiser swap. No power

    Should be the 50 amp mercruiser circuit breaker, Does yours have the 90 amp fuse at the starter?
  3. Fun Times

    Fresh Mercruiser swap. No power

    Test light handy by chance or local store? Mercruiser uses a starter slave solenoid to help activate the starter solenoid.
  4. Fun Times

    Fresh Mercruiser swap. No power

    Is there power at the breaker 2 red wires? Is there 12v power from the battery to the engine starter? Main wire at the alternator has 12 volt power? Wiggle the main engine wiring harness. Some 3.0's have while some 3.0's don't have a 90 amp fuse at the engine starter.
  5. Fun Times

    Starter for V8-300-C-A

    You might be fighting some paint from the manufacturer as well as the bolt torque too. Is the area clean down there? How is the access to the starter bolts and wiring on your boat model? Are you able to take a few photos to help see what it looks like down there? as sometimes a visual may help...
  6. Fun Times

    What is this thing?

    Isn't there an open hole / with screen on the side we can't see in the photo? I'd say possible a drain for the front anchor lid,
  7. Fun Times

    4.3 Main Breaker Cover

    Mercury-Mercruiser 85-96819T INSULATOR, CIRCUIT BREAKER Item number 31, https://www.mercruiserparts.com/bam/subassembly/31466/951/70 This product is not being produced anymore however may still be available through other dealers. Name City State CONTINENTAL MARINA BUZZARDS BAY MA Website...
  8. Fun Times

    2015 4.5 no start/trim

    Start with page 38 - 41, https://mnappsp.mercurymarine.com/mmliterature/pages/viewpdf.jsp?pdfpath=SERVICE%2FCRUISER%2FOWNER%2F15%2F8M0103371.PDF&name=4.5L A 15‑amp fuse located at the aft end of the engine, protects the accessory circuits. This power package uses a clean power harness that is...
  9. Fun Times

    2015 4.5 no start/trim

    The click may another blow fuse and probably blowing 2 of them (or more)… one trim and the other ignition power…. Plus you should have relays involved in your system. Have you located all the fuses on the engine yet and checked them to see if they look blown? With fuses blowing, something is...
  10. Fun Times

    Overheating 502

    Yes that is a check valve to help keep hot water from getting to the fuel cooler pump system… Merc part number 21-862271A1. It could be an issue… but I just now saw where you mentioned you had bell housing type service work done… I would first thoroughly double check the intake waterline hose...
  11. Fun Times

    Stupid rookie mistake...

    You’re good.👍
  12. Fun Times

    No beep, no buzz, no start. 2004 Mercruiser 350 Mag

    Thinking possibly a fuse or relay located on the engine is having issues. Could try lightly tapping on the relays while the key is on to see if it helps jog it loose that and/or swap them out to see if things change symptoms...also try wiggling the main wiring harness on the engine. Do the...
  13. Fun Times

    5.0 MPI Water Pressure Sensor

    These water psi sensors are sometimes problematic at times. Though it should go to 0 psi with the engine off, key on. You could first try removing it, inspecting and cleaning and even testing it's ohms value to see if helps any. Being it's staying in range, it shouldn't create any fault codes...
  14. Fun Times

    Overheating 502

    Yesterday I intended to mention that since the water appears to be spraying vs pouring out, it may indicate an exhaust type leak vs say a cracked open block or drain valve, etc. but never got back to you on it...Very glad it was way less severe than feared.(y) In the very front of engines with...
  15. Fun Times

    Overheating 502

    No sir, sure didn’t miss that part thus the reason I asked Welcome to iboats, are you able to get a video of the water spraying out and post it? Where does the boat live during the winter? And he responded in post number 4. Personally I think something unfortunate happened during winter but...
  16. Fun Times

    Overheating 502

    https://www.crowleymarine.com/mercruiser/oem-parts/stern-drive/1998/4752027m1?q=4752027M1 https://www.mercruiserparts.com/454-mag-mpi-bravo-gen-vi-gm-454-v-8-1 https://www.mercruiserparts.com/bam/subassembly/31812/4854/130
  17. Fun Times

    Overheating 502

    Welcome to iboats, are you able to get a video of the water spraying out and post it? Where does the boat live during the winter? If you're able to safely, try feeling the back side of the impeller pump housing by the hoses for excessive heat while the engine is running....Sometimes Bravo 3's...
  18. Fun Times

    2005 MerCruiser 4.3L MPI won’t start hot

    Saw you added MPI so I made a few changes in the post above to reflect. Your engine parts, https://www.mercruiserparts.com/4-3l-mpi-alpha-bravo-0w310000-thru-0w6 Need to pull the fuel filter off and inspect the contents, https://www.mercruiserparts.com/bam/subassembly/31501/11705/70 If the...
  19. Fun Times

    2005 MerCruiser 4.3L MPI won’t start hot

    When was the last tune up performed? Plugs, cap/rotor, flame arrestor, Throttle body cleaned up, water separation fuel filter, engine oil condition checked/changed, engine timing ? Maybe you have some old fuel mixed with new that is making it run not the best at times along with a bit of water...
  20. Fun Times

    Alarm sounding at higher RPM in neutral

    Revving the engine in neutral? Yes that is normal to have a warning horn....If in gear then there's an issue. Item number 20 is the gear Indicator switch that controls that, https://www.mercruiserparts.com/bam/subassembly/31851/11681/350 Go for a boat ride and enjoy the day.(y):)
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