Fuel line & tank bung replacement

[Sam Mac]

I replaced the fuel line and the bungs that go into the bottom of the fuel tank on the 2284 today. These were not leaking yet but anytime I’m this far into a tractor I change them. The ethanol seems to eat rubber and the last thing I want is a gas leak. It’s not an overly difficult job. On the Cyclops you will need to remove the seat and un-bolt the fenders from the footpads, disconnect the fuel tank low fuel sender and remove the fenders. Drain the tank and disconnect the line that leads to the engine. I just cut the line because I also replace the line all the way from the tank to the engine. Once this is done you just lift the tank out and turn it upside down to work on it. The valves will come out by pulling and twisting. Most of the time the bungs come out with the valves but if they are rotten they may rip and part will sometimes stay inside the tank. If that happens you can get it out through the filler. Good time to flush the tank if it has crud inside. Next I clean everything and apply a little grease to the bung and push it into the tank opening then a little grease on the fuel shutoff valve and push that into the bung. I replace the hose and use screw type hose clamps, I just never liked the spring style clamps. This is also a good time to clean up the area that the tank sits in. Next I run the new fuel line from the tank to the filter and re-install the tank, fenders, seat and the footpads. The older Cubs that have the plastic tanks under the hood are much easier to replace the bungs and hose because they only have one bung and the tank is pretty much a lift out with a lot less in the way. Anyway just my personal opinion but if you have a 15+ year old Cub with the rubber bung in the bottom of the tank you may want to think about replacing it. The 2182 I picked up a couple weeks ago was leaking from a rotten bung.