Fillpipe Restrictor: Description and Operation

Fillpipe Restrictor:

PURPOSE
The restricted opening of the fuel tank filler pipe allows only an unleaded fuel nozzle to be inserted.

CONSTRUCTION
The restrictor consists of a narrow opening in the fuel tank filler pipe covered by a spring steel flap.

OPERATION
The smaller unleaded fuel nozzle will fit through the narrow opening and push the trap door aside, allowing normal filling. Leaded fuel nozzles will not fit in the narrow opening. The spring steel flap being closed causes a fuel back-up and automatic nozzle shut-off.