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.

[PaulS]

You gotta hate it when yur bung leaks. Lol. Thanks for the pics as my 2084 is much the same as your tractor.

[Sam Mac]

Originally Posted by PaulS

You gotta hate it when yur bung leaks. Lol. Thanks for the pics as my 2084 is much the same as your tractor.

Paul

It's a serious problem, I'd say more but I know I'd get banned LMAO

[Cubby2084]

Thanks Sam Mac. Both on my 2084 started leaking at the same time. I had a feeling the rubber bushing just pushed in but wasn't sure. Your pictures sure helped. Cheers, Neil

[Rescue11]

Good thread. Any place special you get your bung rubbers?

[Sam Mac]

I get them from these guys. http://www.cubcadetpartsnmore.com/

[sorner]

I had two "wet" bungs on my 1864. I replaced them while still on the tractor. I didn't disassemble it at all. That was when I was still feeling it out to see how it ran after I got it. Those leaky bungs really put out a smell... of gas.

Fortunately for me there's a gas station near by enough that makes it worth while that sells ethanol free gas. It's about $1 more a gallon but there is normally a line at the pump with lawn care trucks filling their stuff.

[darkminion_17]

Originally Posted by sorner

I had two "wet" bungs on my 1864. I replaced them while still on the tractor. I didn't disassemble it at all. That was when I was still feeling it out to see how it ran after I got it.

That's how I do it also, if it is not a dirty mess under the fender, good way to clean out the crap at the bottom of the tank also.

[sdeminie]

Thank you Sam. I am still figuring out my way around everything on my 2284 and noticed the two cutoffs under the fenders. I turned them off and back on and cracked the left line in the process. I now have the cleaned the cutoffs and have new line and was going to put it back together, but now I will take it down further and clean the tank.