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  1. Fun Times

    MerCarb adjusting after rebuild and question about base gasket

    That should work okay.
  2. Fun Times

    Prayers needed please ...

    🙏For you and yours Sam.🙏
  3. Fun Times

    MerCarb adjusting after rebuild and question about base gasket

    Running your 807764 number shows it ought to come with the 2 hole gasket, https://www.mercruiserparts.com/864941a01-carburetor Looks like the main difference between the 2 are thickness. Gasket thickness: .060" is for the 1 hole and the 2 hole Gasket thickness is .030''...
  4. Fun Times

    Indmar Raptor Crank Sensor & Cam Sensor Faults

    Don't have a service manual to confirm but generally I believe those 2 sensor circuits share the same grounding wire circuits. Make sure the small grounding for the ECM usually at the rear of the engine are really good, clean tight, not damaged, etc.... Plus check the wires at each sensor (find...
  5. Fun Times

    MerCarb adjusting after rebuild and question about base gasket

    It's been a awhile now but I believe it was because on some setups there was a engine running issue that arose as one of the fuel flow circuits became obstructed with the 2 hole cut out at the top so they opened the gasket up starting at the next set of serial numbers above the you...
  6. Fun Times

    MerCarb adjusting after rebuild and question about base gasket

    Carburetor Kit for (TKS) looks like this... While Carburetor for (Mercarb) = this set up, Carburetor and Throttle Linkage https://www.mercruiserparts.com/4-3l-carb-alpha-bravo-0m615000-thru-0w
  7. Fun Times

    Mercruiser ECM Failed?

    Please keep this topic updated as you go and good luck to you.
  8. 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...
  9. 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...
  10. 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.
  11. 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...
  12. 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...
  13. 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...
  14. 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.
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    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...
  16. 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...
  17. 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...
  18. 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?
  19. 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...
  20. 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"...
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