1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 313Get this manual

1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 313

THERMAL EXPANSION RELIEF 1Under certain conditions, external temperature variations can cause the unit's hydraulic fluid
to expand2The extreme pressure caused by thermal expansion flows from the cylinder and bypasses the UP check valve and the