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  1. 4sure

    Battery Isolator

    I just found out there is no battery isolator in this boat.
  2. 4sure

    Battery Isolator

    Does anyone know where the battery isolator is located on a 2002 360?
  3. 4sure

    Calling all 360 DA owners

    Thanks, I will check to see if that is the case
  4. 4sure

    Calling all 360 DA owners

    It is an AccuSync unit
  5. 4sure

    Calling all 360 DA owners

    Does anyone know where the engine synchronizer connects to the engine in the 8.1 Mercruiser? The synchronizer manual says it is supposed to go around a spark plug wire however I don't see anything on either engine. There are wires connected properly on the synchronizer side however I can't...
  6. 4sure

    Need ECM Replacement - Mercury Part #866127T05

    I have not heard they are repairable. From the number on the back of the ECM I can trace the technology such as MEFI-1, MEFI-2 and so on. I have one for sale 12575479 MEFI-4a, however its for a 454 7.4L
  7. 4sure

    Need ECM Replacement - Mercury Part #866127T05

    What is the number on the back of your ECM?
  8. 4sure

    Cheap is expensive, think about it.

    Cheap is expensive, think about it.
  9. 4sure

    Mercruiser Genuine Replacement Engine Control Unit 7.4L V-8

    This used engine control unit (ECU) was from a 7.4 liter MPI V-8 engine. The original model of the ECU that went bad in this engine was 16237009, MEFI-3. The replacement ECU, offered for sale, is model number 12575479-2 MEFI-4A, which includes the genuine Mercruiser adapter wiring harness and...
  10. 4sure

    SLX-W 230 Winterization

    Sounds good.
  11. 4sure

    Cruisair A/C Replacement Parts

    Thanks !
  12. 4sure

    Cruisair A/C Replacement Parts

    Cruisair Air conditioner replacement parts
  13. 4sure

    Cruisair A/C Replacement Parts

    Anyone a good source for Cruisair replacement parts? I could use a manual too.
  14. 4sure

    1999 7.4L hissing noise, then no cranking

    We cleaned all the spark plugs on one side of the engine which showed signs of water, tested the exhaust manifold to be sure there was no leak of water into the exhaust, put everything together, started the engine, seemed to run ok. When the exhaust manifold was installed to the block, we...
  15. 4sure

    1999 7.4L hissing noise, then no cranking

    Found the problem, thanks everyone.
  16. 4sure

    7.4L MPI Gen VI V8 Power Drop Off

    Don't forget about the simple things. If all the engine components don't have good power, what your describing can happen. From the battery engine electric terminates on back of the starter motor. Measure 12V power around the boat, it should all be the same. Measure at the engine computer...
  17. 4sure

    1999 7.4L hissing noise, then no cranking

    My boys are out on a trip this week and ran into some problems. They were on a flawless 4 hour trip when they arrived at their destination they noticed a hissing or helicopter like sound from the engine. When they made it to the dock the engine was running rough. Upon trying to restart the...
  18. 4sure

    smalloutboards.com

    Has anyone purchased an engine from Small Outboards .com? They also go under the name AFA Marine out of Florida. They seem to have reasonable prices for small motors and great deals from a lease program in Canada. I could only find one favorable review for them, no bad reviews. Has anyone...
  19. 4sure

    Late 90's 270 Sundancer Thread

    When the key is turned to the on position, you will hear 2 beeps indicating the self test from the engine computer is good, the fuel pumps should spin up too, then shut down. The other beeps while the engine is running could be overheating, low drive fluid or low power voltage at the engine...
  20. 4sure

    I'm just sick

    Just confirm what the actual problem is before replacing parts. Many times parts are replaced and the issue is something else. Prove the issue before spending any more money.
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