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  1. spunkyman

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

    Is there any difference between 8M6000623 and 8M6000626 ? Both are being called water pressure sensor, but one is for the oil. Can anyone clarify ? Top is oil, bottom is water pressure
  2. spunkyman

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

    Ok ... I have both. I have a T coming out of the block ... the “analog” sender is on one end and the digital sender on the other hooked up to the 3 pin cable. It’s old and rusty, so my guess is that I’ll need a new one, but why do I have both ? It’s always been smartcraft gauges, hence, the...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  9. 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...
  10. 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...
  11. 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...
  12. spunkyman

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

    Re: No power to gauges or ignition, but blower, bilge work. Her is the breaker... when I put the red/purple wire straight to the red it's fine, but with the breaker, nothing. Yes, I've pushed the red button ! PICTURE
  13. 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...
  14. 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...
  15. spunkyman

    2008 Volvo Penta 3.0L impeller housing leaking HELP !!

    Salutations fine people..! I have a 2008 3.0L Volvo Penta and there is a leak. I've replaced the impeller and O-ring. Water is being pumped fine, however, the part which the impeller housing screws onto, is leaking. It's the part goes around the fixed part of the belt wheel. Problem is that...
  16. spunkyman

    2010 Mercruiser 4.3L MPI drainage issue for winterizing

    Hi I have a 2010 Sea Ray 185 with a 4.3L Mercruiser MPI and THis is my problem I drained the engine with the round blue dial (quick drain) that apparently drains the block and manifold all in one swoop. I also removed the blue plug at the bottom above the orange drain hose and also on the...
  17. spunkyman

    Trim switch doesn't work, but drive will go up/down when jumping

    Hi All. I'm brand new. I have a 2003 Sea Ray 176 with a 3.0L Mercruiser I/O. When I try to trim up OR down, nothing happens when I press the switch on the throttle. Not a click, NOTHING. I jumped from the RED to the BLUE and I got it to go down, then I did the same to the GREEN and it went...
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