Gas only nozzle fuel tip and method for cooling the same

A diffusion flame nozzle gas tip (20) is provided to convert a dual fuel nozzle to a gas only nozzle. The nozzle tip (20) diverts compressor discharge air from the passage (26) feeding the diffusion nozzle air swirl vanes to a region (28) vacated by removal of the dual fuel components, so that the diverted compressor discharge air can flow to and through effusion holes (42) in the end cap plate (22) of the nozzle tip (20). In a preferred embodiment, the nozzle gas tip defines a cavity (28) for receiving the compressor discharge air from a peripheral passage of the nozzle for flow through the effusion openings (42) defined in the end cap plate (22).