Mase 2.7 generator wont stop

K

kjoverbeck

Well-known member
Joined
Sep 12, 2020
Messages
117
Fluid Motion Model
C-28
Hull Identification Number
FMLT2704E415
Vessel Name
Cheers
My Mase 2.7 generator will start from the control panel but not stop. I have to shut down out on the generator itself. Any suggestions?
Kent
 
I am chasing the same problem myself. Started recently. At least its better than a generator that won't start.

I called Joe at MASE. He was pushing a corrosion theory. He says you have to have 12 volts at the fuel solenoid on the engine to shut if off. Sounds plausible, but so far I can't find any corrosion anywhere. Now that the boat is on the hard, I'm going to go through it again.

I'm wondering about the switch on the panel. It appears to be a momentary contact switch. I found that pressing it repeatedly I could eventually get it to shut off. When winterizing it this year my wife just held the button down and it shut off right away. Nothing like a woman's touch.

I pulled the panel out and pulled the connectors off, no corrosion I could see.

Here's the MASE contact info: 954-990-4130

Please share anything you learn.

-martin
 
I have a Mase 2.7 in my 2011 R27 and have found that when I press the stop button sometimes it shuts down immediately; then other times it takes a while, struggling to stop, like the cylinder is has a tiny bit of fuel, feebly firing, but at a slower rate until it finally stops.
Just curious, thinking that perhaps the fuel solenoid is not fully engage, hence a tiny bit of fuel is leaking, causing a weak firing, finally stopping because of lack of momentum, hence lack of compression, finally breaking the diesel cycle.
Has anyone had an issue with the shut of valve that is activated by the solenoid? I going to check for corrosion and that I have a full throw of the solenoid travel, and no sticky shut off valve.
I have about 600 hours on the Mase 2.7. Are hours a factor?
 
Thanks for the replies. I will be on the boat this week and will check suggested problems out.
 
My MASE has much less hours. The previous owner apparently never used it. I have about 80 hours on mine. Since I also have solar power I only need to run the genny about 2 hours a day when I'm on the hook.

So I don't think hours alone are an issue. Your idea about dirt in the solenoid makes sense. I also wonder if the fuel injector itself could get dirty.

-martin
 
Just where is this solenoid so I can check it?
 
Hi,
Had this same problem and could not get the genset to shut off. In my case it was the fuel solenoid. Over time the fuel gums up the plunger and it gets stuck. The problem is getting a wrench on it. If you remove the fuel pump you have to know how to replace it as it has a rod that is placed on the inside. I thought a crows foot might work but it was physically too big. I ended up making a small open flat wrench and also cut a box wrench and welded it at a strange angle. between the two I was able to remove only the solenoid and replace without removing the pump. Now when I hit the stop button this shuts off instantly.
Btw Joe at Mase recommends that you switch the filter to a R11S which is 2 microns. He said the genset runs much better and the old 10 micron filter contributes to it clogging the solenoid.

Stuart

Btw If I remember correctly the number for the solenoid has changed so check with mase for the proper cross reference number.
 
Stuart, that sounds like it could be my problem too. If I can't find any corrosion I'll give this a try.

After the web site is upgraded, it would be great to see some pictures of the tools you made.

-martin
 
Hi,
was going to get some pictures into the photo album but it as others have commented it is not working.
The new fuel solenoid has a new wire added to it. The original only had the one lead for power, the body of the solenoid was the ground. Now the solenoid has a hot and a separate ground. So I had to find a place to add this wire which was not a big deal but it insures that corrosion gets taken out of the picture.

Stuart
 
I just talked to Mase. I could hardly understand the first person but was passed off to another. I don't know his name but he was very helpful. I have a 2.7 B generator on a 2015 r27. As I understand it, if I can shut it down at the generator. the solenoid is not the problem. He told me that there were 5 fuses on the back of the control panel and to check them. He said there was a gray wire going from the panel to the gen. located behind the emergency shutoff switch and that was the main control wire and removing one screw should provide access. He felt that corrosion there was the problem. If fuses ok and no corrosion, then spend $450 for a new control panel.
 
I would still at least take out the solenoid and physically inspect it. You would still be able to press down on the plunger and see if it pops up rights away. Big difference between my gummed up solenoid and the new one. Then after its been running awhile the heat and the sticky diesel would keep mine running for as long as five minutes. Dont go the route of the new panel until you inspect the solenoid. Also I took the time to clean all the plug assemblies with contact cleaner and tightened some of the sockets.
Also if you have the time run the genset then shut it down from the panel and give 5 minutes or more and see if it finally shuts off.
Stuart
 
Stuart, Just where is the solenoid located?
 
Kent,
check you PM.

Stuart
 
He told me that there were 5 fuses on the back of the control panel and to check them.
Click to expand...

My Mase did the same thing yesterday. Started up fine. Ran for 30 minutes. Hit the OFF switch and the panel lights simply went out and the generator kept running. In the time it took me to look for a clue in the manual troubleshooting section (nothing there) and logged into TugNuts, it stopped.

WRT the five fuses, are they located on the back of the control panel where you ON, START and OFF the genet? or are they located on the Generator itself behind the wiring cover?

Thanks, Gary
 
You must log in or register to reply here.

  • Tugnuts.com is the community hub for Ranger Tug, Cutwater, and Solara owners. Since its inception in 2008, the Tugnuts forum has grown into an active and thriving community of more than 9,000 members. It serves as both a meeting place for the best boating community online, and an invaluable archive of information.

  • User menu
Back
Top