gas tank filler tube

[IdahoBen]

the filler tube does not align properly with the tank.   the car is a 63 and I believe the tank is a avanti two.   The tank tube is smaller in diameter as well.

[mfg]

9 minutes ago, IdahoBen said:

the filler tube does not align properly with the tank.   the car is a 63 and I believe the tank is a avanti two.   The tank tube is smaller in diameter as well.

Yes you probably have an Avanti ll tank…. The diameter of the tank inlet was reduced when leaded gas was phased out.

[wildfelr]

RQB3263/81/305 .... GOOD MORNING BEN FROM BILL IN SUNNY  FLORIDA ...... I discovered  the same situation on 3263  several years ago ... mostly  due to gas smell in side car ...  I removed the filler tube and cut and welded on a short piece of S/S tube the same OD as the tank tube and replaced the old leaking rubber connector with the correct ID  from the local CARQUEST  with new clamps ....all problems solved ... sorry no pics or at least I cant find them .....2 hr.  job ... !!!

[mfg]

On 5/5/2026 at 11:22 PM, IdahoBen said:

the filler tube does not align properly with the tank.   the car is a 63 and I believe the tank is a avanti two.   The tank tube is smaller in diameter as well.

Also, the later Avanti ll rubber hose that connects the external gas inlet tube to the gas tank inlet tube is molded in two different diameters… smaller diameter at tank inlet…..

These special hoses are available through Avanti parts vendors.

(Stude Avantis and earlier Avanti ll’s external gas inlet tube and tank inlet tube are same diameter.)