In that case me and @BansheeZA wil be dead in a few days then:( if someone will just take good care of our mods and Canas.. I'm not too bothered about it, it is half a drop on the outside of the filling hole. If it does eventually pop out we will go the Pratley way..
I have to show you guys...
@BansheeZA bought a little bag full of o-rings locally... after we dremilled out some smaller ID o-rings to make them fit.. maybe he can give you the sizes that you need @Mklops