[TonyM]

Yes, the fuel filler neck is designed to come off. The fuel filler neck is held to the tank by a threaded tube that screws to the tank opening. I just restored my early 1937 fuel tank. I had to cut off my fuel filler neck since the threaded tube was rusted to the fuel filler neck. Not sure about 1936, but for 1937 the removal of the rear fender to get the fuel filler neck/threaded tube to come off is not neccesary.

Remove left rear fender brace (if equipped); loosen and remove fuel filler neck/threaded tube (use a spanner of your choice); loosen clamp and move tail pipe over; remove fuel line and fuel line clamp; remove tail light cross over harness; remove sending unit wire; unbolt the fuel tank from the frame; lift/push on tank and shift it to the passenger side and the left lip should clear the frame; let tank down to the left and the right side of tank will come down. This was for an early production 1937 passenger car; should be very similar for 1936 passenger car.

Good luck.