1989 Johnson/Evinrude 40 thru 55 HP Models Service Manual P/N 507755, Page 223Get this manual

1989 Johnson/Evinrude 40 thru 55 HP Models Service Manual P/N 507755, Page 223

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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