Testing fixture for diesel engine cylinder cap water-jetting path steel bushing

The utility model discloses a testing fixture for a diesel engine cylinder cap water-jetting path steel bushing. The testing fixture comprises a testing fixture pedestal and a cover plate. The testing fixture pedestal comprises a pedestal unit, a diameter testing hole for a water inlet and laid in the top surface of the pedestal, and a camber testing groove for a water outlet of a water-jetting path steel bushing; and the cover plate comprises a top board, and side plates respectively extending vertically downwards along the two sides of the top board. When in a test, the cover plate is supported on the top surface of the testing fixture pedestal through the bottoms of the side plates. The testing fixture for the diesel engine cylinder cap water-jetting path steel bushing is simple and reasonable in structure; through testing, the fact that the water-jetting path steel bushing entire camber, the water inlet diameter and water outlet camber are qualified in quality is ensured; a cylinder cap mould is prevented