I saw some other posts addressing the issue just experienced. Looks like people were replacing sensors and random parts. Maybe this will save someone some time. It wont save much money because a new board is about $300.

We were out last week and the genny shut off after about 2 hours run time. I thought it had most likely over heated as the impeller most likely was never changed, 110 hrs total run time.
So I bought an impeller, fuel filter and oil filter. changed all this weekend, started up and ran about 30 minutes and shut off again.

Let it sit a bit and tried again. It tried to start but would shut down as soon as the start switch was released. Then it didn't even try to start.

Ok time to actually dig in and figure it out.
Spark, check.
Compression, check.
Fuel, ???
It seems the power to the fuel pump was only 7 volts coming from the control board relay with a good 13 volts coming into the board. Ran power direct to the fuel pump, it starts and runs fine.
Time for a new control board.

Hello All, Just purchased a 2006 41 CMY and will be keeping her(Triple 7 Heaven) in Galveston, TX (Pelican Rest Marina). Looking forward to digging into all the info, and cruisin'


Dwight Patrick

Greetings,

Carver 400 CMY, twin Mercruiser 7.4 MPI. 500 hours.

I saw a similar post, but that was for a carbureted boat.

Port engine, has been running well since I purchased the boat Oct 2015. Had both engines fully serviced, including new OEM manifolds and risers. Had an issue with Starboard engine, but looks like it was solved with new MAP sensor.

On a recent cruise, ran for about an hour at 3,200 rpm. Both engines running smoothly, then suddenly the Port engine 'stalls', rpm drops to 1,000rpm, no change to throttle. Bring both engines down to idle, port stalls. I'm able to restart, and fortunately was at the mouth of the harbor (Newport Beach, CA). Motored to slip at 5 kts, both engines seem to be running fine. Did several marina cruises with friends. Engines start and run fine at 5kts.

On way to home port (Huntington Harbor, CA), came up the 3,200 cruise, seemed to be fine. After 5 minutes, port engine begins 'stalling' again. doesn't quite die, but rpm drops to 1,000, again, throttle not changed.

This pattern continues, and I figured out that I could cruise at 2,000 rpm. At 2,500 rpm or above, the engine would start to stall. Made it to home port, no issues motoring to slip.

Come 4th July weekend. I switch Port engine to Aux fuel tank.

Had friends on boat Saturday. Port engine would not start. Sunday morning, port engine fires right up, and was able to do a marina cruise. Monday (July 4th). Port engine reluctant to start, but it does, and was able to do a marina cruise. Like day before, running normally at 5kts, smooth idle.

Following weekend, Port would not start. Had engine guy check it out, showing good fuel pressure, spark at the plugs, no error codes. He could not get the engine to start.

I installed a new fuel filter (primed with fuel), starts right up. Runs normally, and went for sea trial, and ran fine at WOT, cruise for about 20 minutes. Headed back into harbor, and did one last WOT run, and sure enough, stalling starts again. Seems like running out of gas at higher rpm, very smooth down low and at idle.

I think fuel starvation, it feels like it's running out of gas at higher rpm. I think I need to get my engine guy with the Diacom out on the water, and see what's happening when it starts to stall.

Anyone experienced similar problems?

Thanks!

A 2002 Carver 444 CPMY Port side glass panel was damaged in accident and needs to be replaced. Carver saying they do not have the part. Any recommendations from the Carver community? Known dealers who may stock parts? This needs to be expedited.

It's a 2002CPMY collecting water in rear bilge compartment. Only occurs when AC is running. There is a leak in system and its not an inoperable sump.

Any ideas?

https://youtu.be/uGpqyLzqgPM

I'm not the best at making videos and I always wished people would share ideas.....so I make it point to do so when I do projects. Video should be available around 8:10 ct

I have Cummins 6BTA's on a 390. One engine is smoking more than the other and there appears to be fuel coming out of the exhaust port leaving a light sheen on the water. I was told it is likely unburned fuel due to one or more injectors with poor spray pattern resulting in incomplete burn. Does this sound right, or is there some other problem at play? There is more smoke coming from this engine. Cant tell if the smoke is more blue than black though.

Any comments or advice appreciated.

Joe
Pacific Horizons

I've got a Carver 390 with twin Cummins 315 HP engines and 4 blade 23x28 props. I recently sent in the props for balancing and the prop shop said the specs given for HP, WOT(2800), gear ratio (1.96:1) and expected speed (21 kn) didn't add up. On sea trials we achieved 2750 rpms and a speed of 40 KPH (21+ knt). Prop shop claimed that those props should not be pitched higher than 23, so they didn't do anything to them awaiting clarification on the numbers I provided on the spec sheet. It seems to me that the props were performing as expected per Carver for this hull. My question is to any other 390 owners with same engines and 23" diameter, 4-blade props, what do you have your props pitched at and what speed do you achieve at WOT?
thanks in advance

Joe
Pacific Horizons

Ok engine gurus, opinions on who is the best to repower with, a 20,000 lb boat thru RV drives.....mercruiser, crusader or volvo penta........I know that diesels are better but the cost is just unrecoverable in the short term imo.

Would you get the complete package,fuel injected etc or just the engines or the long blocks and swap out all the stuff you already have which would be carbed. Mercs are already there....Thanks as I have never done this before...

Hi all, I am looking for a davit that's cheap and does not hinder the back when not in use. Preferably a pull up one, that slides into place when one wishes to use. I found some but they are ridiculously priced for 2 little metal posts. But my question is more so the 2 sets of 3x screws on swim platform. They do not look like they are holding anything, and I looked at similar models and they did not have it. Are these possibly placed there for installing Davits? anyone know? I will post picture this weekend when I get to it. If they are designed for that I can custom make something possibly. But not sure the screws have re-enforcement under the (inside) swim platform. They do not go all the way through so one can not see it way under the platform. I am not sure they are holding the swim ladder as they are not exactly on where the ladder is under platform.