STRUCTURE OF CYLINDER BLOCK WITH CAST-IN CYLINDER LINER, METHOD OF PRODUCING CYLINDER BLOCK, AND CYLINDER LINER FOR CASTING-IN USED FOR THE METHOD

摘要

A cylinder block (2) has a cast cylinder liner (1). A different level portion (31) with a predetermined width is provided in a projected part (4b) formed along the lower end-face (3b) of the cylinder liner (1), in the centrifugal direction of the cylinder liner (1). In this case, the different level portion (31) has a width corresponding to the dimensional tolerance range (²) with respect to a finished inside diameter dimension position (±), and a outer circumference edge of the different level portion (31) is provided in the outer circumference side farther than the finished inside diameter dimension position (±). Displacement of a hole is detected by checking the different level portion (31) after machining the internal circumference of the cylinder liner (1).