1994 Johnson Evinrude "ER" 90 LV 120 thru 140, 185 thru 225, 250, 300 Service Manual P/N 500612, Page 413Get this manual

1994 Johnson Evinrude "ER" 90 LV 120 thru 140, 185 thru 225, 250, 300 Service Manual P/N 500612, Page 413

DRC3465 Shallow Water Drive Tilt Relief 1If the engine exceeds idle RPM while operating in shallow water drive mode (tilted
motor will tilt down to the top of the trim range Thermal Expansion Relief 1When the unit incurs large temperature increase
(as can happen when exposed to midday summer sunshine), the fluid tends to expandWhen the engine is stored in the tilt range,
the fluid under all ofthe pistons (and above the tilt piston) cannot expand, so its pressure increases2If the pressure gets
high enough to push the ball of the tilt relief valve (0 off its seat, the excess pressure is vented to the reservoirE u