Service Manual Evinrude E-TEC 40-60 HP Cooling System [Pressure Relief Valve Servicing]
der head with side marked “TO CYL HEAD” facing thermostat.
- Cylinder head seal
Inspection
Inspect all components for cracks, heat damage, or signs of corrosion. Replace damaged components. Clean debris from all housings and thermostat components.
Assembly
Assembly is essentially the reverse of disassembly. Pay close attention when performing the following additional tasks.
Coat threads of cylinder head thermostat cover with Gasket Sealing Compound and install new O-ring. Install and tighten the cover to a torque of 120 to 144 in. lbs. (13.5 to 16 N·m).
PRESSURE RELIEF VALVE SERVICING
The pressure relief valve assembly should be serviced at the same time as the thermostat.
Disassembly
Remove pressure relief valve cover retaining screws.
Remove the pressure relief valve assembly.
Inspection
Inspect all components for cracks, heat damage, or signs of corrosion. Replace damaged components. Clean all debris from pressure relief valve components.
Pressure Relief Valve Assembly Component
Assembly
Assembly is essentially the reverse of disassembly. Assemble components as shown above.
Torque cover screws to 60 to 84 in. lbs. (7 to 9.5 N·m).
