As part of my continuing program of looking for trouble I have noticed that there is no fuel flowing through the return line to the tank. There is not even a drop of fuel flowing after 3-5 minutes of full throttle operation or at idle.
Everything I have read says that the engine pumps more fuel than it can burn and that the excess fuel is continuously returning to the tank. I checked the return line fitting on the tank and the return line and there are no restrictions. Has anyone checked this on their boat? Any suggestions? The engine is the Universal.M-25.
One other item I found (I just can’t leave bad enough alone). The Universal secondary filter (PN 298854) is a 10 micron filter. I had always assumed that it was a 2 micron filter since that is what I have always read the secondary should be. So unless you have a primary filter with a 2 micron element you don’t have the protection you might have thought you had. Does anyone know if Universal only specifies a 10 micron filter?
Ray Rhode
S/V Journey
E35-III, #189
Everything I have read says that the engine pumps more fuel than it can burn and that the excess fuel is continuously returning to the tank. I checked the return line fitting on the tank and the return line and there are no restrictions. Has anyone checked this on their boat? Any suggestions? The engine is the Universal.M-25.
One other item I found (I just can’t leave bad enough alone). The Universal secondary filter (PN 298854) is a 10 micron filter. I had always assumed that it was a 2 micron filter since that is what I have always read the secondary should be. So unless you have a primary filter with a 2 micron element you don’t have the protection you might have thought you had. Does anyone know if Universal only specifies a 10 micron filter?
Ray Rhode
S/V Journey
E35-III, #189