Repair tool for air outlet valve of diesel engine

The utility model relates to the field of diesel engine related equipment, in particular to a diesel engine air outlet valve repairing tool which comprises a traction shaft, a contraction buckle and a pressing weight, the upper end of the traction shaft is provided with threads connected with a hexagonal fastening bolt, the lower end of the traction shaft is connected with a fixed slender rod, and the upper end of the traction shaft is provided with a guide block of a cone structure and arranged at the upper end of the slender rod. The contraction buckle and the pressing weight are sequentially arranged on the traction shaft in a sleeving mode, and the conical surface of the guide block is attached to the inner conical surface of the contraction buckle. After being installed, the ring is pulled out through the air cylinder, repeated utilization is facilitated, the problem of an original scheme for repairing and replacing the ring of the air inlet valve is greatly solved, the working efficiency and the success