What was found
OUT OF CONCERN FROM HAVING 2 PREVIOUS OIL RING FAILURES THAT COULD HAVE BROUGHT ME DOWN. PULLED CYLINDER NR 1 AND NR 2 TO REPLACE RING WITH SAME PRODUCTION DATE AS ONE THAT FAILED. PULLING AND INSPECTING NR 1, FOUND THE RING GAP TO BE EXCESSIVE, MFG CALLS FOR .0015 TO .0030. , SEEMS LIKE A LOT OF WEAR IN TOO SHORT OF PERIOD. HAD RINGS FROM CYLINDERS NR 1, 2, 4 SENT TO REPAIR STATION TO CHECK FOR HARDNESS OF RINGS. RING NR 1 CYLINDER WAS 1.5 ON C SCALE ROCKWELL MACHINE, NR2 WAS A 2.0 ON SAME SCALE. CYL NR 4 (RING IN 3 PIECES) LARGE PART OF RING WAS BETWEEN 1.5 AND 2, 2ND PIECE WAS A 5.5, 3RD PIECE WAS 3.5. MAN DATE 10-1-2002. SENT MFG BAD RINGS, SENT NEW RINGS AND OLD RINGS BACK WITH COMMENT. (K)