1993 Johnson Evinrude "ET" 90 degrees CV Service Manual, P/N 508285, Page 349Get this manual
COA2503
118120Inspect the rubber keeper
The rubber keeper provides cushion between the motor
on the pump drive coupling
and the pumpIf the keeper is not present, there is chance that the tang on the pump coupling could be broken off when the motor is energizedf19121Install the pump coupling in the oil pump in the position shownUsing the two Allen head cap screws and one hex head screwflat washer, and lock washer, carefully and evenly draw the oil pump down against the manifoldTighten the screws to torque of 25-30 inIbs(2,8-3,4 Nm)The oil pump must be drawn down evenly
120122Snap the pump filter screen into the manifold as
23Position the manifold so that the pump mounting surface
is levelUsing the correct hydraulic fluid, fill the cavity where the pump is mounted, up to the top of the filter