2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 200Get this manual

2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 200

COOLING SYSTEM PRESSURE RELIEF VALVE SERVICING
PRESSURE RELIEF VALVE SERVICING
The pressure relief valve assembly should be serviced at the same time as the thermostat
Inspection
Inspect all components for cracks, heat damage, or signs of corrosionReplace damaged componentsClean all debris from pressure relief valve components