leaking fuel tank vent

[matt]

I have a 1998 standard the vent hose started dripping fuel I checked out there was no T in hose  I replaced hose installed a T now drips faster. I have never had a problem like this any fixes as a new tank is not atainable at this time would be appreciated

[Joe Hummer]

out of the end of the tube???  do you have rust in your tank?  the only thing I can think of is if your vent tube (inside your tank) has rusted through...granted that it only does it when you really fill up the tank and let the bike sit in the hot sun...

Joe

[roboto65]

Well I think the tube is welded to the top of the tank you should not get any dripping unless you are just filling way too much or filled alot and exspansion has got ya. Now I do not have a T on mine and it is fine. I have heard the response of the T is there to stop siphoning but how much can it take the vent tube is right at the top of the tank !!!!

[matt]

I used my buddies tool which lets you look inside and watch on screen tank real clean. problem is I need to run down on reserve before fuel stops dripping out of end of hose.I had someone suggest talking to a radiator shop to see if they would remove section of tank(bottom) and repair or replace section of line

[matt]

Anyone else ever have this problem  how did you fix and is tank stilll working

[Madmike]

On inspection of a tank I have that is damaged and hanging on the wall it would seem thatthe vent tube must run up to behind the filler neck.

If this is the case and you are getting fuel out the vent untill the tank is almost on reserve it would seem that there must be a hole or crack in the vent line somewhere fairly low in the tank.  How about if you were to plug the vent line off, make sure that te vent hose is firmly attached to the tube so that it doesn't blow off and then try Daniels trick (I think it was him) of putting a small ziptie in under the cap when you lock it down so that the ziptie holds the cap seal up and allows air into the tank as the fuel level goes down.  May not be the ideal solution but may work for the meantime to keep you going. 

.....  Kinda like the farmer who fixes it with baling twine until he can get it back to the shop and fix it proper with haywire.......

[John U.]

I bought a Valk with a rusty tank a few years ago. It must have set for a while in a humid environment with an empty tank. I cleaned it well and rattled drywall screws around to get all the rust out, then washed it out again. Then I used Caswell Plating's tank seal epoxy. It has been fine ever since.
I needed to use extra long pipe cleaners to keep the vent hose clear of the epoxy.
It's a two part system that will set up fairly quickly, depending on the temperature of the room. If you remove the pipe cleaner (I used long ones they use for crafts and had to splice two together) just before the epoxy sets up it will seal the vent hose but not clog it.
I think the cost was about 50 bucks http://www.caswellplating.com/aids/epoxygas.htm

[matt]

thanks for that info I will look into the epoxy as there is still atleast 3 months of riding left in New Hampshire