Connecting Rods and Pistons/Pistons and Connecting Rods IMPORTANT: Pistons must be installed in the same direction and on the same connecting rod they were removed from. 10. Put a mark on each piston and connecting rod for proper identification to aid in assembly. M36397 -UN-29JAN90 11. Remove two snap rings. 12. Remove piston pin using a wooden dowel. M98,2030K,27 -19-09OCT85 CTM2 (19APR90) 30-16 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495 9. Measure piston ring end gap. Push rings into cylinder bore approximately halfway using piston.
PISTON RING END GAP SPECIFICATIONS Item New Part Wear Tolerance -UN-29JAN90 All Rings 0.25—0.51 mm 1.52 mm (0.010—0.020 in.) (0.060 in.) If end gap exceeds 1.52 mm (0.060 in.), replace rings. M36395 Deglaze cylinder bore before installing new rings. -UN-29JAN90 M36396 M98,2030K,26 -19-12NOV85 30 16