1993 Johnson Evinrude "ET" 2 thru 8 Service Manual, P/N 508281, Page 166Get this manual
G814Install piston rings on pistonSpread each ring with ring expander just enough to slip it over the head of the piston and down into place5Coat the piston and cylinder bore with oil
G9l6Place the piston in OMC Ring Compressor, PIN 327017Make certain that the rings are correctly positioned in their grooves with respect to the dowel pinsDamaged pistons and broken rings will result from imperfect alignment of the ring gap and the dowel pins
The piston rings must be correctly located on their dowel pins to prevent permanent powerhead damage
G9l7Startthe piston into bore ofthe cylinder with deflector of the piston (sharp edge) toward intake port side of the cylinder blockAfter pistons are installed, loosely install the cylinder head to prevent the pistons from falling out
201'N"=J Connecting rod cap cannot be turned end for endTo
assist correct assembly, small embossments provided on matching side of rod and cap