The Logic Behind This Is They Think The Rings Working As Spring Loaded Sealers .With This Logic They Can Make 0.5 Or 0.75 Size Ring Work With Piston Bcz Ring Will Adjust Itself As Its Some Young Dehati Housewife Trying To Adjust With Old 65 Year Old Husband And Will Eventually Do
The Only Engine Opened And Goes Inn Without Bore Job Or Stuff Like Bearings And All Is Those With Stuck Rings Due To Bad Oil Or Design Of Piston But That Also After Measurement Or on Low Mileage Engines...Even In That You Slightly Hone Cyl To Seat New Rings Inn Properly
Either You Dont Open It Or If You Open ..Make Sure It Get The Proper Treatment....