350 mag mpi

Hi all! I purchased a project Sundeck 240 with a low-compression 5.0 MPI motor over the summer but am now facing a difficult decision on which engine to install into the boat. After teardown, I discovered the 5.0 ran lean and "tuliped" an intake valve in the problem cylinder. The bottom end and...

I want to put a heat exchanger on my "new to me" 2011 Sundeck 260 before it hits the salt/brackish water for the first time next season. Mine came with the 350 MAG with the Emissions Control Technology. Prices for the Mercruiser banded FWC kit are around $4,000. Has anyone put a Mr. Cool kit...

Well, I had to pay for C-Tow to bring some fuel out to me the other night! Grrrr! I had over 1/2 a tank registering on the fuel gauge, however, the engine just died. I had fuel filters change in 2020, but only used the boat for about 50 hours in the past 2 years. So I thought, oh, I have a fuel...

Hi guys i have recently purchased a 2015 Sea Ray slx 210 with a 350 mag and bravo III , it also has the dts electronic shift and throttle . This boat only has 24hrs on it . I was on the water today and at higher speeds the gauges will beep , do a sweep and at the same time the boat will go into...

I just purchased 2 new engines for me 290 SLX. I had steering issues and it turns out the only way to permanently fix the problem is remove both engines, replace the transom assemblies and put everything back together. Because it is the same cost to Install new or old engines, I went ahead and...

I had my boat put back in the water today after having the bottom painted. My water pressure has always been very similar on both the port and starboard engines, btw 2-16 psi. Tonight the starboard jumped to 25-38psi. Water pumping out the exhaust at idle looks the same at idle even though...

I have a 2002 310DA with 350 mag mpi v drives. Boat has been idle for 3 months. Turn on ignition and no warning horn sounds. Also no audible fuel pump pressure up. Engine cranks won't start. Same situation for both engines. Turn starboard ignition on and the auto fire extinguisher light goes on...

Is it a difficult task to take apart and clean injectors? I'm a novice on engines, and can do basic maintenance but I've never cleaned injectors before and I believe that's a reason for my engine having issues. I've replaced the fuel filter and I'm still having some hesitation/jumping until I'm...

I just bought my first boat, 2003 used 220 Sundeck with 160 hrs, and when we did the water test and for the first couple trips out it was running like a dream (cruising @40mph and maxing out with 5 adults @50mph). Then about two weeks after taking ownership the old girl seems to have a...

Is anyone aware of where you can download service manuals for a 350 MAG MPI B3 (in a 2006 240 sundeck)? Merc dealer said they were ~$170 through Merc and steered me to find one online, on the sea ray forums.

I have a 2007 290 Amberjack with T-350 Mag MPI Bravo III (about 75 hours). I bought the boat used this year and have only put about the last 10 hours on it, but have a question about fuel economy. Based on gage readings it appears the port engine uses fuel at a faster rate. Also, at my first...

Hello, I have 50 gallons of gas that is two years old, my tank holds 65 gallons, I did not add any treatment/stabilizor to gas. My boat does set on an air dock and the gas does get swished around with the movement of the water(wakes). Any chance of saving this gas? If I need to get rid of it...