MoombaMike
06-25-2012, 07:32 PM
I have a 2004 Moomba Mobius LSV with an engine problem I am trying to diagnose. If anyone can help with some suggestions or or similar situations they have run into in the past that'd be great.
All summer and all the way through this past weekend the boat was running fine. I was doing some simple maintenance on it over the weekend and realized that the fuel filter was completely rusted so I decided to change it out. The Fuel Filter exchange went smoothly with no problems putting it in correctly. I then went back up to the lake, dropped it in the water and thats where the problems seemed to start happening. The boat would turn on fine and run idle through a no wake zone fine with no
problems but the second I got out of a no wake zone and pushed down on the throttle, the boat
seemed like it was choking. Like it wasn't getting the gas it needed to run the boat. At this point, the engine temperature gauge read around 220 degrees. So we decided to bring it back in. I called a boat mechanic to come out and look at the boat and his first thought was that maybe the impeller was bad. When he got the old impeller out, all the fins were completely missing with him only find 2 stray ones in the compartment where the impeller is held. Once he got the new impeller in, we gave it another test run. The boat got up to around 20-25mph but then got to that point where it felt like it was choking and running out of gas immediately once reaching that speed. His next thought was that the loose fins might be caught in the Thermostat. So he opened the thermostat and took it out but realized there were none in there. This time, he decided to leave the Thermostat out and we ran it again. Got the boat up to around 25mph but this time it stayed there for about 10-15 seconds before cutting out again. The last thing we did was open up the hoses and knock out those extra pieces of theimpeller out of the water hoses. After that, the boat still choked up when I reached the speed of
25mph after 10-15 seconds.
I'm just wondering if you guys have any idea what might be causing this problem. Every suggestion and idea is greatly appreciated.
Thanks
Mike
All summer and all the way through this past weekend the boat was running fine. I was doing some simple maintenance on it over the weekend and realized that the fuel filter was completely rusted so I decided to change it out. The Fuel Filter exchange went smoothly with no problems putting it in correctly. I then went back up to the lake, dropped it in the water and thats where the problems seemed to start happening. The boat would turn on fine and run idle through a no wake zone fine with no
problems but the second I got out of a no wake zone and pushed down on the throttle, the boat
seemed like it was choking. Like it wasn't getting the gas it needed to run the boat. At this point, the engine temperature gauge read around 220 degrees. So we decided to bring it back in. I called a boat mechanic to come out and look at the boat and his first thought was that maybe the impeller was bad. When he got the old impeller out, all the fins were completely missing with him only find 2 stray ones in the compartment where the impeller is held. Once he got the new impeller in, we gave it another test run. The boat got up to around 20-25mph but then got to that point where it felt like it was choking and running out of gas immediately once reaching that speed. His next thought was that the loose fins might be caught in the Thermostat. So he opened the thermostat and took it out but realized there were none in there. This time, he decided to leave the Thermostat out and we ran it again. Got the boat up to around 25mph but this time it stayed there for about 10-15 seconds before cutting out again. The last thing we did was open up the hoses and knock out those extra pieces of theimpeller out of the water hoses. After that, the boat still choked up when I reached the speed of
25mph after 10-15 seconds.
I'm just wondering if you guys have any idea what might be causing this problem. Every suggestion and idea is greatly appreciated.
Thanks
Mike