Engine maintenance tool with good fixing and stabilizing effect

The invention discloses an engine maintenance tool with good fixing and stabilizing effect, and relates to the technical field of engine maintenance tools. The engine maintenance tool comprises an engine overturning bracket; four second pulleys are arranged on the lower surface of the engine overturning bracket, and are positioned at four corners of the lower surface of the engine overturning bracket; a fixing device is arranged between two of the second pulleys; the fixing device comprises a first movable rod; and clamping grooves are formed in the upper surface and the lower surface of the first movable rod. Through coaction of the first movable rod, a rotating shaft, a second thread column, a second thread cap, a connecting rod, a movable plate, a first pulley, a support plate and an extrusion plate, the engine maintenance tool with good fixing and stabilizing effect realizes more stable fixation of the second pulleys, prevents rotation of the second pulleys, prevents sliding of theengine overturning brack