Engine remanufacturing tool

The utility model discloses an engine remanufacturing tool which comprises a base, a rotatable disc is arranged on the base, and a limiting unit capable of limiting rotation of the disc is arranged on the base. Two symmetrical positioning plates are arranged on the disc, each positioning plate is provided with a stand column, the upper end of each stand column is provided with a fixing base, the upper end of each fixing base is provided with a U-shaped opening, positioning units used in cooperation with each other are placed at the U-shaped openings, the supporting rods are rotatably arranged at the U-shaped openings, and limiting discs are arranged on the outer sides of the supporting rods. An adjusting disc is arranged on the inner side of the supporting rod, a plurality of first limiting openings are formed along the outer edge of the adjusting disc, a fixing plate is arranged at the other end of the adjusting disc through an extension rod, and a plurality of positioning holes are formed in the fixing plat