excessive end gap spacing of the oil sealer ring the fits in between the 2 compression rings on the piston . . . this is am manufacture error . . . that is not within the manufacture's minimum tolerance . . . notice that the end gaps are also cut on an angle instead of a simple straight cut within the manufacture's minimum tolerance . . .
the last photo in this post is after the main crank shaft installed...the photo is without the connecting rods and pistons being installed...this is at the point of fitment, measurement, and alignment . . .
