1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Manual, Page 220Get this manual

1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Manual, Page 220

r:;:;] 27Carefully apply OMC Gasket Sealing Compound to the a-ring flange and aft support flange of the propeller shaft bearing
and vacuum test the gearcase as follows: Remove the oil level plug, and screw in pressure test gauge Pump up pressure to
3-6 PSI (21 -42 kPa) If pressure gauge indicates leakage, submerge the gearcase in water to determine source of leakage as
evidenced by bubblesIf the gearcase pressure gauge does not indicate leakage, increase pressure to 16-18 PSI (110-124 kPa)If
pressure does not hold, submerge the gearcase in water and check for source of leakageMake necessary repairs and repeat test
Screw in vacuum testerPump outto 3-5 in (76-127 mm) of mercury and see if vacuum holdsThen, pump out to 15 in(381 mm) of