1989 Johnson/Evinrude 40 thru 55 HP Models Service Manual P/N 507755, Page 291Get this manual

1989 Johnson/Evinrude 40 thru 55 HP Models Service Manual P/N 507755, Page 291

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THERMAL EXPANSION RE LIEF 1 Under certain conditions, external temperature variations cause the unit's hydraulic fluid to expand2 The extreme pressure caused thermal expansion is vented directly to th