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  1. Fun Times

    Help me identify this part?

    Being the boat has an Alpha Stern Drive and the/an impeller is located in the lower unit of the drive, (As an just in case) Check the lower front of the starboard side of the engine for an engine mounted/belt driven Impeller water pump assembly too.... Just below #2,
  2. Fun Times

    Help me identify this part?

    That seems to be Mercruiser's Transom Mount Water Pickup Kit OEM Part Number 88845A1 https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313&_nkw=88845A1&_sacat=0
  3. Fun Times

    Which plugs please?

    Yes in this case the link above would cover the same engine parts catalog as the OEM part numbers are the same for each engine model listed.., 90-99985 PARTS MANUAL, 898/200/228/230/260 HP R/MR/ALPHA ONE But here is the 350 version since i made a mistake above linking the 305.:oops...
  4. Fun Times

    Which plugs please?

    From original your engine model takes the NGK-BR6FS spark plugs...You're okay to use them..., https://www.mercruiserparts.com/bam/subassembly/31733/1077/70 https://www.mercruiserparts.com/260-4-bbl-gm-305-v-8-1982-1986-6218
  5. Fun Times

    Mercury Classic 50 45 hp year identification

    The model number for your serial number is 1050553 which helps show your engine year to be from 1983..,,Here’s a parts catalog for this engine model, https://www.crowleymarine.com/mercury-outboard/275.cfm?mdl=YM1UIT&q=1050553#engine_info
  6. Fun Times

    Gear Lube Hose

    Starboard side…https://forums.iboats.com/threads/broken-gear-lube-connector-merc-5-7l.309724/
  7. Fun Times

    Gear Lube Hose

    It's not recommended as depending on the break location, (at the fitting) the oil inside the drive builds pressure which will allow the oil to flow into the boats bilge area emptying the drives oil damaging the stern drive. Suspect item numbers 1 and 5...
  8. Fun Times

    350 MAG MPI Reman maybe Gen II??

    Also check the fuel pressure when the fuel pump system is all reassembled…, Usually when the screen in your photo is clogged it creates a high fuel pressure situation vs low pressure.. That’s the fuel regulator return part of the system… I Don’t recall a screen at that High psi fuel pump but...
  9. Fun Times

    Mercury repair manual

    Hi there, welcome to iboats forums. Having the engine serial number might help a little at trying to find the correct service manual part number...Is the engine EFI or Carbureted?
  10. Fun Times

    Newer Merc Model idle RPM changed ?

    What year does the service manual say it’s from? The RPM info mentioned was from my memory when noticing the RPM change using a marine scanner tool.
  11. Fun Times

    Port to Starboard issues

    Did this wandering around issue just seem to start all of a sudden? Maybe say after a service repair of some kind? Is the boat new to you? The engine have a power steering system/pump? If there's power steering, 'With the engine on, carefully try turning the actual Stern_Drive to see if the...
  12. Fun Times

    Mercruiser 5.0 MPI

    Just to ensure things were set up properly at/before first start up... With this GM designed ignition distributor system (High Voltage Switch) There's a certain procedure of properly phasing in the GM distributor..., https://forums.iboats.com/attachments/installing-hvs-pdf.87763/...
  13. Fun Times

    Mercruiser 5.0 MPI

    just to confirm with "full of water"... Was the inside boat full of water submerging the engine? or just the internal engine components like oil pan, etc. ? What was found that added the water....The reason asked, Maybe the ECM is full of water too.
  14. Fun Times

    Drain Plugs for 1999 Mercruiser 4.3 Thunderbolt 6 cyl

    Hard to see in the photo and your engine design/year model, past service work situations may vary some here 'But the parts catalog diagram suggests there'd be a drain plug mounted to / on the Big water hose near the bottom part of the "U" between the thermostat housing and circulating water pump...
  15. Fun Times

    Alarm Going Off for Mercruiser 350 Mag MPI

    Or the lower cost way to help monitor either MPI codes / basic problem descriptions would be buying / installing certain Smart Craft gauges or Merc Mobile Vessel view ran by your iPhone, etc..,< Depending on year of MPI engine model.
  16. Fun Times

    Alarm Going Off for Mercruiser 350 Mag MPI

    Check your ignition power sources/wiring for loose connections starting at the key switch as it may be turning off and on the ignition randomly which is usually a one beep reset mode and if so, it wouldn’t show a code on the scanner tool…But would drop RPM.
  17. Fun Times

    Mercruiser 8.2 ECT Water Pressure Sensor Location

    That photo looks like the water psi sensor to me as well.
  18. Fun Times

    IAC whistle ??? Merc 7.4L MPI

    If you haven’t, maybe try cleaning the throttle plates of the body….Both sides…Also I recall you’ve recently readjusted the throttle cables, maybe try aren’t in a proper position creating a whistle while the air moves across the plates…..Also I recall some Merc big blocks EFI’s had a small hole...
  19. Fun Times

    Mercruiser 7.4L MPI Throttle Adjustment ???

    Depends on the type of cable and shifter you have on your boat...Some may have adjustments at both ends but most standard Mercruiser cables and shifters only adjust at the engine side. Also consider that (though the adjustment is very small/slight) the TPS sensor isn't seated/"Turned"/Installed...
  20. Fun Times

    Temperature gauge issues? Can't get a temp reading?

    In your case with the things you've tested and done thus far seems to leave that there's going to be about a 95+% chance the thermostat is stuck open...Usually the thermostat is stuck open with debris such as small rocks, etcetera...It's time inspect the thermostat itself as a stuck open...
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