Tool used for replacing engine rocker arm

The invention relates to a tool for replacing an engine rocker arm. The tool comprises a support structure and a rocker arm pressing tool arranged on the support structure; the support structure comprises a support beam and fixing clamps, wherein the fixing clamps are arranged at the two ends of the support beam and used for clamping an engine cylinder body; and the rocker arm pressing tool comprises a driving structure arranged on the support beam in a sliding mode and a pushing rod structure connected to the driving structure, wherein the pushing rod structure corresponds to valve seat ringsor valve pressing blocks. According to the tool for replacing the engine rocker arm, when a valve rocker arm is replaced, time and labor are saved, and damage and loss of other parts are avoided. 本发明涉及一种用于更换发动机摇臂的工装，包括支架结构，设于所述支架结构上的摇臂压具；所述支架结构包括支架梁，以及分别设于所述支架梁两端、用于夹持发动机缸体上的固定夹；所述摇臂压具包括滑动设于所述支架梁上的驱动结构，以及与所述驱动结构连接的推杆结构，所述推杆结构与气门座圈或气门压块对应。本发明提供的用于更换发动机摇臂的工装，在更换气门摇臂时，省时省力，不会对其他零部件造成损坏和失效。