1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Repair Manual P/N 503148, Page 237Get this manual
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Pump pressure up to 3-6 PSI (21-42 kPa)If pressure gauge indicates leakage, submerge the gearcase in water to determine source of leakage as evidenced bubbIesIf the gearcase pressure gauge does not in