All piston ring sets contain information relative to the proper installation of the rings packaged in the set.

Although in many cases most compression rings appear similar to the mechanic installing them, there are, however, many subtle design changes which dictate how the ring is correctly installed.

Not only must the ring be installed with the proper side toward the top of the piston, but it is also imperative that the ring be installed in the proper groove.

Rings installed in the wrong groove or wrong side up can lead to excessive oil pumping, excessive blow-by, and in some cases completely dry up the bore, causing ring and cylinder scuffing as well as accelerated wear. Any of these problems, of course, constitute a failure as far as an engine overhaul or rebuild is concerned.

(P33)