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  1. M

    No Spark - 4.3 Liter Mercruisers

    Update. Thanks for the input. I got them both started. While troubleshooting, I decided to clean everything up, including the battery terminals. And then charged all night. Guess what, they both started. Ugh...sometimes it is the simple stuff. Now I have another problem, the port engine is...
  2. M

    No Spark - 4.3 Liter Mercruisers

    Thanks, so that is a circuit breaker for the ECM?
  3. M

    No Spark - 4.3 Liter Mercruisers

    Yesterday I thoroughly checked the batteries, to see if something has become disconnected. All was fine. Took the opportunity to clean up everything and treat all of the poles with CorrisionX. I don't seem to have the blade fuses behind he distributor and I don't see a 50 amp on top of the...
  4. M

    No Spark - 4.3 Liter Mercruisers

    Thanks for pointing out the link. I was able to download it. It is a 2001 Sundancer. There is a breaker for the ignition. One of the breakers I replaced. I believe it is the same breaker that powers the starter (from memory). Maybe there was another lead on it that I didn't reconnect, but...
  5. M

    No Spark - 4.3 Liter Mercruisers

    Thanks, I will check that today.
  6. M

    No Spark - 4.3 Liter Mercruisers

    Thanks. So power is a separate circuit for the ECM? I tried going to this site, but I can't figure out which one is the wiring diagram, there are many, many links...I tried one and it took me down a rabbit hole. Might not help anyway as I am not great at reading schematics. Do you know if there...
  7. M

    No Spark - 4.3 Liter Mercruisers

    Hi all, I have a 280 Sundancer. Both engines have the same problem. They crank fine, and getting fuel - but no spark. Is there a separate circuit for the coil? Different than the starting circuit? I recently replaced some breakers and pulled all of the batteries, could I have left a wire or...
  8. M

    Mercruiser Alpha Drive Stuck in UP Position

    I have an update. I disconnected the hydraulic lines to the tilt/trim ram...no oil came out, I was surprised. Next. Used a scissor jack to push down, using the swim step. It moved a few inches. So... I decided to re-hook up the hydraulic lines. And try moving down again. IT WORKED. But...the...
  9. M

    Mercruiser Alpha Drive Stuck in UP Position

    This is not a selonoid issue, I am by-passing that by jumping the pump. While jumping, I used the wrong wire. There is green and blue. I jumped the green wire my mistake, which drove the drive to its end of travel going up. Dumb mistake. The pump still runs, but the drive won't go down, when...
  10. M

    Engine Oscillates at 3K RPM - Like it is running out of fuel

    No, I don't have a fuel cooler (2001). I have a low pressure pump that is mounted to the bilge. I think they changed the design.
  11. M

    Engine Oscillates at 3K RPM - Like it is running out of fuel

    Your problem sounds different than mine, but checking the screen is easy, quick and cheap. Mine had some kind of particles completely covering it. They were easily removed. It was suggested to use carb cleaner, but I didn't even need to do that. My symptoms were repeatable, idle and up to...
  12. M

    Starboard Switch Panel for Sale - 280DA - Nearly New

    This is from a 2001 280 Sundancer. Purchased just over a year ago. S/N 000227. SEA RAY PART # 1810626. OEM SEA RAY ELECTRICAL SWITCH PAD STARBOARD MODULE. My switchpad was going haywire, like many have reported. It was a guess whether it was the EIM or the switchpad. I guessed switchpad, and...
  13. M

    Replacing throttle controls in 280 Sundancer - input please

    Was it hard to disassemble the shifter assembly? This is there the thottle levers are, right? By memory, seems like I tried before and there was just a cover, but couldn't get to anything. Have you done anything with the shifter cables? Thanks for the reply.
  14. M

    Replacing throttle controls in 280 Sundancer - input please

    My shifter have never operated smoothly. And the tilt switches will sometimes not work. I think I just want to replace the entire assembly, from the control box to the engines...I assume the tilt will just be simple wires. Any advice as I plan on this project. And where to get parts? Thanks...
  15. M

    Engine Oscillates at 3K RPM - Like it is running out of fuel

    Problem solved. The screen was the issue. I was ready to order a new low pressure pump. Then one of the mechanics that I use suggested checking the screen on the input side of the pump. Sure enought was a lot of particles. Cleaned it out and it worked fine. Thanks for the input.
  16. M

    Engine Oscillates at 3K RPM - Like it is running out of fuel

    Thanks....it is the low pressure pump. I think it might have been particles in the screen going into the pump....will test today.
  17. M

    Engine Oscillates at 3K RPM - Like it is running out of fuel

    Thanks. I found one on https://www.fuelpumpfactory.com for $250. I was ready to order it and then someone suggested I check the screen on the input side. I did and it was not even visible, so many particles had accumulated. So I cleaned out and plan to test today. And I did not order the pump.
  18. M

    Engine Oscillates at 3K RPM - Like it is running out of fuel

    I search for some posts but didn't find any...I will look again.
  19. M

    Engine Oscillates at 3K RPM - Like it is running out of fuel

    Thanks guys. The engine is throttle body fuel injection, so standard intake manifold but fuel is injected. 2001 280 Sundancer. I don't know what CF2 is? If I do, that rules out being a bad low-pressure fuel pump? and paint chips?. Yes, a fuel pressure test would be good, but I don't have the...
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