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6A – 90 ENGINE MECHANICAL 5. Piston Ring 1) Install the piston rings with the piston ring expander. 2) Discerning mark is stamped as shown in the illustration (1). Marked 1N: 1st compression ring Marked 2N: 2nd compression ring 3) Install piston rings in the following sequence. 1) Oil ring (1) After installing the expander ring then assemble the oil ring. 2) 2nd compression ring 3) 1st compression ring 1) The compression ring must be set with the 1N or 2N mark facing up. 2) 1st compression ring:1N circumference of the piston rings. 5) Insert the bearings into the connecting rods and caps. 6. Piston and Connecting Rod 1) Apply engine oil to the cylinder bores, the connecting rod bearings and the crankshaft 2) Check to see that the piston ring end gaps are correctly positioned. N 012RW037 2 3 1 015RW051 3 2 1 1 012RW058 |