Search results

Your thermostat has 3 hoses. 1 goes to the Raw Water Pump on the engine and the other 2 each go to a manifold. Only Disconnect 1 at a time. So start with the one that goes to the left manifold: unscrew the clamp holding the hose onto the thermostat and pull the hose off. Stick your garden hose...

"First off, hello! I'm amazed at the knowledge represented on this forum. I've learned so much about our 280DA from reading all 421 pages of this thread. I'm not new to boats; I've had boats all my life but mostly outboard center console fishing type boats. This is our first cruiser and we're...

Sharing a quick semi-success story. My Port side engine would overheat while I was on plane and then when I put it back in neutral the alarm would shut off and temperature would go back down. I bought an infrared heat sensor and tested it out. My risers on the starboard engine both would read...

I have a 2003 with the 4.3 engines. I was just coming on here to ask the exact same question. After 20 minutes of the boat running I get the 2 beeps/min alarm. Nothing shows on the mechanics computer. He thought it might be the block pressure sensor and it was not. I can not figure this one...

Dennis, I didn't realize that that you work for sea ray. Do you know anything about the forward EIM and switch pad? My switch pad has been acting up, when I push the Nav lights the horn might blow or the anchor light only will turn on. Also if I turn on the windlass the controls don't work and...

Does anyone know where the EIM is located in the 2003 280da

Has anyone had to replace their Engine Coupler? On my 2003 280 I have this issue that I thought was a spun prop hub. After taking the prop off and taking it apart, we realized the prop isn't the issue. After googling I find some people having issues with their mercruiser Alpha 1 Engine couplers...

Hey guys, looking for some help. On my 2003 Sundancer 280 I have been having issues with my right side Electronic Switch Pad (the one with the Nav lights, Windlass..etc). Whenever I hit a button, one of the other buttons will light up. For example, I hit the nav lights and my horn goes off, if I...

Hey guys. So after many repairs at the start of the season I finally got the boat in the water. It ran fine the first couple of times out. 2 days ago I tried starting it and their was a loud clunk noise and the engine wouldn't turn over. After a few attempts it ended upstarting and ran fine. I...

Does anyone know how to fog the 4.3 MPI's with Marvel Mystery Oil? This boat is my first non carbureted one and I have no idea how to do it. I heard it goes in the fuel filter, but I am not sure how much and when to do it (do I do it when putting the pink through with the earmuffs?). Sorry to...

It's almost that time of the year! This spring I was a new owner to a 2003 280da and now that winter is coming I am trying to figure out what to do. I live in Babylon, NY and I am thinking about in water winterizing. Has anyone local done this and what are some of the benefits compared to...

Thanks guys looks like I will have a winter project. I just though dry joint = a longer life span on the manifolds and risers.

Just curious if anyone has the answer/suggestion for this. Sorry to be a pain. I have seen a few people mention they have done this, I am just curious what I have to buy. I want to swap out all of my cockpit bulbs with led lights. Also, Recently my exhaust manifold cracked (not rotted)and...

I have seen a few people mention they have done this, I am just curious what I have to buy. I want to swap out all of my cockpit bulbs with led lights. Also, Recently my exhaust manifold cracked (not rotted) and filled my engine with salt water. My mechanic said that usually these dry joint...