An Examination Of The Engine Revealed That A Bracket For The Fuel/Air Mixture Cable Had “Bent And Overextended...”
Analysis: The pilot reported that the purpose of the flight was to test cooling plenum changes that he had recently made to the experimental amateur-built airplane’s automotive conversion engine. After takeoff on the planned flight in the airport traffic pattern, the pilot heard over the radio that another airplane was inbound to the airport for touch-and-go landings, so he flew away from the airport and performed ground reference maneuvers. Shortly after, the pilot returned to the traffic pattern, entering on the upwind leg. Upon turning onto the crosswind leg, his engine began to “sputter&rdq