Onan fuel filter
Subject: 4KYFA26100G. Wanting to change the fuel filter in this gen set. Maybe the "G" prefix makes it impossible as I see it to change the filter without removing the whole ball of wax from the cabi...
Forum Discussion
There is another possible route for changing the fuel filter. My Onan is a Spec K, so your Spec G may be somewhat different.
If you can get at the clamp on the fuel hose and remove the hose from the barb on the end of the filter, the rest isn't too difficult. The fuel pump and filter are located under and behind the control board. In the picture below, the control board is the item with the four fins on top.
Before doing anything else, disconnect shore power and the ground cables from the house and chassis batteries.
Disconnect the heavy red wire from the starter solenoid (top left in the picture). I think I also had to remove the solenoid to have enough room to remove the control board. The control board is held in place by the two #30 Torx screws visible at the bottom of the picture below the Caution label. I don't recall whether I had to disconnect the multi-wire connector from the control board.
Once the control board is out of the way, you will have access to the fuel pump and the attached filter. The fuel pump has two feet and is held in place by one #30 Torx screw through a foot. The other foot goes into a slot in the bottom of the case.
Picture of pump and filter still connected to the hose to the carburetor.
If you can get at the clamp on the fuel hose and remove the hose from the barb on the end of the filter, the rest isn't too difficult. The fuel pump and filter are located under and behind the control board. In the picture below, the control board is the item with the four fins on top.
Before doing anything else, disconnect shore power and the ground cables from the house and chassis batteries.
Disconnect the heavy red wire from the starter solenoid (top left in the picture). I think I also had to remove the solenoid to have enough room to remove the control board. The control board is held in place by the two #30 Torx screws visible at the bottom of the picture below the Caution label. I don't recall whether I had to disconnect the multi-wire connector from the control board.
Once the control board is out of the way, you will have access to the fuel pump and the attached filter. The fuel pump has two feet and is held in place by one #30 Torx screw through a foot. The other foot goes into a slot in the bottom of the case.
Picture of pump and filter still connected to the hose to the carburetor.
