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  1. Fun Times

    Mercruiser ECM Failed?

    Does it seem as if you both are able to work together to help find a more practical financial solution? If needed? ^ If yes, Then the ECM is an pretty easy bolt on part with 3 bolts 2 plugs that you ought to be able to do yourself at home? Maybe pay what's owed to the service guy, bring boat...
  2. Fun Times

    Mercruiser ECM Failed?

    Thanks for the engine confirmation of what we're working with as it helps a lot instead of guessing what things may be. In this case the last number isn't truly needed as they all come up the same engine description which is MERCRUISER 5.0L MPI (ALPHA) (1.7 inch exhaust Risers) (DRAIN). Should...
  3. Fun Times

    Mercruiser ECM Failed?

    Serial # handy? Does the ECM look like #3,? or this # 3? The top one's (image) usually repairable the 2nd one I'm unsure of but maybe and it'd be another company I have in mind you'd need to talk with.
  4. Fun Times

    Mercruiser ECM Failed?

    Depending on your ECM type, They are typically able to physically go into the ECM and repair burned out computer components which contains the original programming...Plus if needed or desired depending on engine type, they are usually able to install either an original programming, an updated...
  5. Fun Times

    Mercruiser ECM Failed?

    What part of the system seemed to of failed? And what year/engine serial number is your engine & boat? There are a small few marine type companies out there that are sometimes able to repair most of the things that go wrong within the Mercruiser PCM/ECM's...,Here's 1 example depending on ECM...
  6. Fun Times

    5.7l EFI Mercruiser TBI Bravo surging idle stalls

    First thought would be an failing out of range temperature sending unit affecting the fuel parameters of the ECM as the temperature sender is one of a few senders that control fuel calculations the ECM read. MAP and Intake air temp sensors do too should your enine have the Intake sensor as...
  7. Fun Times

    Merc Alpha4 no longer available. What to replace it with?

    It seems Merc suggests going up 1 inch according to the notes of the Alpha4 buyers guide.
  8. Fun Times

    Knock sensor for Thunderbolt V

    Thank you. It always helps knowing the back history like these. I believe it would be easiest & best to just continue using the old warning system design vs integrating into the TB-5 design as there have been some reports of unexpected/unexplained warning horn faults going off for no apparent...
  9. Fun Times

    Gimbal bearing dimensions

    What was the Sierra part number you bought? There are a few changes they did over the years size wise...Here's 2 that may help with some reference points for you to study. http://boatinfo.no/lib/bulletins.html#mercruiser-service-2000_08...
  10. Fun Times

    Knock sensor for Thunderbolt V

    Hi there, Welcome to iboats forums...Lets see if we can help you out some here. While I'll just mention you probably don't need the knock system I can understand the desire to try and use it if possible and Yes your new to you ICM is an TB_5 version. So in order to try and make this work you'd...
  11. Fun Times

    2007 Baja Islander 202

    Do you happen to live in one of the recently (sort of) unexpected hard hit winter freeze states such as Texas for example?
  12. Fun Times

    Confused on engine rotation

    Some of the earlier Merc engines didn't start off with a letter in the serial numbers which ought to make these numbers okay but the 2 that start with 5 are a bit to old to find in a computer generated search making it sort of harder for one to give detailed info from just the serial number...
  13. Fun Times

    4.3 MPI Install Engine Mounts

    What year is your boat and/or engine/transom serial numbers? Bear in mind that around 2003ish Merc came out with a different design rear motor mount change. The below links should be some helpful guides for you and/or search online Images "Mercruiser rear motor mount diagrams"...
  14. Fun Times

    Mag 350 5.7 Still overheating

    With this design exhaust system 195ish temp readings at the lower sections of the manifolds aren't too unusual to see with a temp gun honestly. That mentioned I'll bring up that in the past some have brought up running hotter type issues due to sticking check ball valves at the lower side the...
  15. Fun Times

    external oil tanks

    Need your engine serial number or more engine info to confirm correct part numbers but either a Merc dealer and/or places like EBay/online. For an example item number 17 for Mercury part number 1257-87421 = TANK, https://www.mercruiserparts.com/bam/subassembly/32437/4403/280
  16. Fun Times

    Looking for MC1 sterndrive bellows kit part number 188

    Quicksilver is a Mercruiser product and one in the same just branded different in name. In searching past history #3 it looks like the 188-HP (302) uses a 888 stern drive, and in looking over the U-Joint bellows only (no kit) via the parts catalog it seems they offer 2 different...
  17. Fun Times

    Bravo 2 outdrive not engaging when in gear

    Item # 15 will be a Yellow adaptor for the speedometer system,
  18. Fun Times

    Bravo 2 outdrive not engaging when in gear

    What year is the boat? Drive serial number handy? It's rarer that coupler stays up in the upper unit but not impossible either or maybe it rolled down the driveway, in the tool bag or used it to open a bottle of beer :D near the refrigerator area? No shaft to shaft alignment needed when...
  19. Fun Times

    Bravo 2 outdrive not engaging when in gear

    If for sure only the lower gear case housing was removed then maybe the coupling assembly was forgotten that generally rests on top of the drive shaft that meets the upper drive shaft housing...,item number 23, https://www.mercruiserparts.com/bam/subassembly/30977/1943/230...
  20. Fun Times

    MERCRUISER BELL HOUSING

    Actually us having the outdrive serial number would be a big help and knowing the general year of the boat/and/or engine/drive components. 470 1976-1977 470 1978-1982
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