Cut 2-1/8 dia. Hole in bottom skin on pilot side under the seat pan for the gasolator. Drilled and cut two slots for the wire clamp on the gasolator. Drilled #40 holes in the center of the gasolator brackets and fitted the gasolator in the bottom skin, drilled out holes for A-5 rivets. Removed, deburred, cleaned, primed and riveted gasolator in place.