Patent ID: 7568515

Claim:
A method of manufacturing a cylinder block by casting a cylindrical cylinder liner at a predetermined position, the cylinder liner having an outer wall and an inner wall comprising: preparing a cylinder liner as a primary product having an end wall and an annular different level portion axially inward of the end wall with a boundary formed inward in the radial direction by a predetermined dimension with respect to a finished dimension of an internal circumference of the inner wall of the cylinder liner; fixing the cylinder liner as a primary product to a holding part that is provided in a mold to form the cylinder block, the mold having a portion fitting with the different level portion; casting the cylinder block by filling the mold with molten metal; machining the inner wall of the cylinder liner to the finished dimension; and detecting whether the different level portion still exists after the machining step to determine at least one of a position of the cylinder liner relative to the cylinder block, a position of the inner wall of the cylinder liner relative to the outer wall of the cylinder liner, and a thickness of the cylinder liner between the cylinder liner inner wall and the cylinder liner outer wall.