1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 351Get this manual
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1641 dLubricate a-rings of check valve to be tested and install valve in OMC Tester PIN 390063 Torque valve to 50-60 inIbs(5-7 Nm)Use Stevens Pressure Tester NoS-34 to pressurize valve to 30 PSI (207 kPa)If leakage is indicated, submerge tester in water to identify source1651 44Using OMC Trim Cylinder End Cap Remover PI 324958 and breaker bar, remove both of the trim cylinder end caps1661 45 Remove the outside seals from the trim cylinder end caps There is an -ring and back-up ringone of two different designsNewer nylon seals will be continuous ring of nylon Older seals are split 1671 46 Using smooth flat tool, remove the scraper from the trim end cap Pry the scraper out of the groove in the end cap Discard the scrapers168147Using the same smooth flat tool, remove the -ring from the end capsDiscard the -rings Clean both end caps and scrape all corrosion or loose paint from the threads in the out side a-ring area ", COA2482 COA2481