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  1. spunkyman

    2005 MerCruiser 4.3L MPI won’t start hot

    Hey guys. I’ve read a lot of threads and want to decipher whether I have a vapour lock or perhaps a sensor that’s gone bad. I’m trying to avoid chasing this problem by just throwing parts and money at it ! Facts are 2005 Hurricane SD187 with 4.3L MPI engine. I just bought this Michigan boat with...
  2. spunkyman

    Mercruiser Alpha 1 Gen II leaking above speedo hose

    Hey y’all Have a 2008 Sea Ray 185 with 4.3L carbureted tks - just got the boat. When I fire it up on the hose, water seems to be slashing out of the little hole on the drive, above the Speedo hose/fitting. Please see pics … question is - is water suppose to come out here or is my drive cracked...
  3. spunkyman

    2004 Volvo Penta 3.0L engine knocking

    Hiya 2004 Glastron 17ft with a 3.0L original engine (red). Ran fine then the knocking started. Not sure if it threw a rod or 2 but there’s no compression on 1+2 and not really sure what else is going on. Shut her down and took it out of the water. I have 2 questions. #1 Might this be fixed...
  4. spunkyman

    2009 Mercruiser 3.0L TKS stalling

    He y’all. Have an 09 Bayliner with the 3.0L Mercruiser - it has the TKS carb. Fires up amd runs for a bit then stalls. I took the carb apart, stripped it (except for the little “T”, spring and ball and the accelerator pump looked fine), soaked it, replaced all the needed parts in my kit and put...
  5. spunkyman

    90Hp trim gauge reads backwards !

    I have a 2002 Glastron SX170 with a same year Mercury 90hp (ELPTO) O/B. When I bought the boat, it didn’t have a trim sender and the gauge did not work. I bought a brand new trim sender kit (Quicksilver 821400A 2) and a (what I think) was a direct replacement Faria trim gauge (CS0331 stamped on...
  6. spunkyman

    1990 Yamaha 2 stroke 85hp Alarm at higher RPMs

    Having an alarm issue with my Dad's boat, a 1990 Yamaha 85hp 2 stroke (model CV85ELD) . Completely rebuilt 3 years ago with powerhead rebuild kit, new impeller, thermo, poppet, s park plugs, shift shaft and control cable. For what ever reason, this guy starts to overheat in the high RPMs (no...
  7. spunkyman

    2005 Sea Ray Sundeck 240 350 MAG MPI - no power over 3500 RPM, random alarm beeps

    Back for another season of troubleshooting ! Still can't get my boat running properly. BACK STORY: upgraded block from a 5L to a 350 MAG (MPI). I solved all kinds of issues and now while closing in on everything, while I'm on the water, I can't get this boat to go past 3500 RPM or about 30...
  8. spunkyman

    Oil pressure sensor 350 MAG Mercruiser Smart Craft

    I started a new thread because my other one had several topics and this is the last of my problems !! (I think) Previously, I'd been getting a reading of FULL (100PSI) on my gauge for oil pressure when I turn the key. When I fired up the engine and gave 2000 RPM in neutral on the hose, the PSI...
  9. spunkyman

    2005 Sea Ray 240 Sundeck - Trim switch at throttle stoped working, but it's NEW !

    HI... Back again... 2005 Sea Ray 240 Sundeck...Bravo 3. 350 MAG. I've replaced the entire trim pump assembly last year along with the triple switch at my throttle. Trim has worked WONDERFULLY since then. Yesterday, I trimmed up to take the boat to the marina because of other issues in my other...
  10. spunkyman

    2005 350 mag (5.7) smartcraft faults Water pressure + fuel level sender

    Hi all... I've been slowly creeping toward getting my boat running.. with new long block, MAP, IAC, Temp sending unit sensor 806490T and Water temp sender 805218T (both sides of thermo housing) and every other sender/sensor , NEW smartcraft gauges - I still get error saying - WATER PRESSURE...
  11. spunkyman

    Looking for a drop-in COMPLETE 5.7L MAG 350 MPI engine.

    I give up. I bought a NEW long block and that is pissing out rust chunks in my oil. I've spent over $10,000 chasing never ending problems. MY $1700 ECM throws 8 error codes including manifold leaks, sensor failures. Rather than pay a marina $130 an hour to just figure it out, never mind the...
  12. spunkyman

    1985 Johnson 35hp Sea Horse - no water in pee hole / tell tale - just hot air

    Hi I broke out my 1985 Johnson 35 hp outboard this year. Some background first.... Last year, I had the carb rebuilt and she ran like a top. Plenty of water coming from the tell tale /pee hole. I put her away for the winter and fired her up today for the first time. Well, she runs good, but...
  13. spunkyman

    ECM problem ! Swap 2004 Mercruiser 5.0L to a 2014 5.7L block. (2005 Sea Ray Sundeck 240)

    ECM problem ! Swap 2004 Mercruiser 5.0L to a 2014 5.7L block. (2005 Sea Ray Sundeck 240) I've been unable to find an answer for 3 years. All anyone can tell me is that I need a different ECM to run the new 5.7 block. I have a 2005 Sea Ray 240 SunDeck with a 5.0L Bravo MPI. engine serial no...
  14. spunkyman

    2005 ECM for 5.0L to 5.7 350 MAG upgrade.

    HI all I have a 2005 Sea Ray 240 SunDeck with a 5.0L Bravo MPI. engine serial no. OW068236. I replaced the engine block with a 5.7L (MAG 350) from Michigan Motorz. I sold my original 5L Motorola ECM with the part no. 865836 with a serial no. of W9010VI1 and manufacture date of 08-10-2004. I was...
  15. spunkyman

    Dry Joint manifolds - ONE HOT, ONE COLD - is this ok?

    I just got a 2007 Tahoe Q6 has a 4.3L Carb Mercruiser engine with dry joint manifolds and risers. I was out on the lake and noticed that the temp was around 150-160 with oil pressure up around 70psi which I imagine is normal. The problem is that when I have the engine hatch open, looking at the...
  16. spunkyman

    1993 OMC 4.3L RUNS COLD about 93*F

    Posting for a friend who has a !993 Four Winns with an OMC 4.3L (cobra). Problem is that is runs cool. He can't get it up to over 100*F. New 160 thermostat installed, and everything has been checked. it runs great, but just cold. This was a transition year from OMC to Volvo, so I wonder if...
  17. spunkyman

    2002 4Winns 3L, Boat starts and runs great, turn off key and restart, nothing

    It's the strangest thing... and intermittent problem, no idea. It's a weird one. I have a 2002 Four Winns 3.0L Mercruiser that starts and runs great. Problem is, after a while out on the water, if you turn the key off and try to restart, there's nothing. No click, no sound. I do have power...
  18. spunkyman

    Tachometer goes up to about 2000RPM and doesn't go any further at full throttle 3.0L

    So here's the deal. I replaced a broken TACH (Faria) on my friends 2002 Four Winns 170 w/3.0L Merc with a NEW Telefelx TACH. After wiring it up, I started the boat and it ran up to about 800-1000 RPM at idle. This was probably not entirely accurate as the boat was probably revving at 1200...
  19. spunkyman

    No power to gauges or ignition, but blower, bilge work.

    Hi All I have a 2008 Tahoe Q4 with a 3.0L Mercruiser that ran on the lake for the first trip out, died 100 meters after that and then when trying to restart, power to the ignition and gauges disappeared. I've switched the 90 amp fuse at the starter, checked power and it's there, have power at...
  20. spunkyman

    Volvo 3.0L Is it ok to remove the plate slowing water between manifold and riser?

    So my 2008 Four Winns is overheating. I replaced the water pump and impeller that was previously faulty. I know that water is pumping good all the way to the 2 drainage holes (as water was pouring out when the engine was running). I then capped those and let it run to the point where the...
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