Report Fuel Door Removal in 1965-83 Avanti Posted March 11, 2016 Does anyone know how to take off the fuel door (gas cap door)? I can feel two bolts on the inside but don't know if the bolts will fall through if I remove the nuts. The only other thing I can see to do is remove the hinge pin but there does not look like enough room without possibly scratching the car. Any help would be appreciated. Thank you.