1993 Johnson Evinrude "ET" 40 thru 55 Service Repair Manual, P/N 508283, Page 333Get this manual

1993 Johnson Evinrude "ET" 40 thru 55 Service Repair Manual, P/N 508283, Page 333

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THERMAL EXPANSION RELIEF
1 Under certain conditions, external temperature variations can cause the unit's hydraulic fluid to expand2 The extreme pressure caused by thermal expansion is vented di