193
Cooling System
Components
9
•
Provides exhaust passages which connect to
the gearcase.
Pressure Relief Valve
A pressure relief valve is used to control water
flow and operating temperature at higher speeds
(above approximately 1200 RPM). The pressure
relief valve opens as water pressure increases.
Spring tension sets the opening pressure.
Overheating:
A restricted or faulty valve typically
results in HIGH SPEED overheating.
Overcooling:
Debris may prevent the valve from
closing completely.
Thermostats
Thermostats control water flow and operating tem-
perature at lower speeds (below 1200 RPM).
Overheating:
A restricted or faulty thermostat typ-
ically results in LOW SPEED overheating.
Overcooling:
Debris may prevent the thermostat
from closing completely.
Block Venting
A fitting and hose from the top of the block allows
the constant movement of water and/or air from
the block. Circulated water flows through the
EMM
and Vapor Separator before exiting through the
overboard indicator.
Adapter housing – 3.3 L models
000695
Adapter housing – 3.4 L models
006991
Pressure Relief Valve Components
DRC8113
Thermostat
DSC02335
Summary of Contents for EVINRUDE E-TEC BE225HGXABA
Page 163: ...Oiling System Oil Supply Diagrams 163 8 008208R Port Side View Starboard Side View ...
Page 165: ...Oiling System Oil Supply Diagrams 165 8 008432R Port Side View Starboard Side View ...
Page 167: ...Oiling System Oil Recirculation Diagrams 167 8 008207R Starboard View Port View ...
Page 251: ...Powerhead Powerhead Views 251 11 Powerhead Views Port Hose Routings 3 3 L models 007153 ...
Page 252: ...252 Powerhead Powerhead Views Starboard Hose Routings 3 3 L models 007154 ...
Page 253: ...Powerhead Powerhead Views 253 11 Port Hose Routings 3 4 L models 008503 ...
Page 254: ...254 Powerhead Powerhead Views Starboard Hose Routings 3 4 L models 008502 ...
Page 255: ...Powerhead Powerhead Views 255 11 Port 3 3 L models 008448 ...
Page 256: ...256 Powerhead Powerhead Views Starboard 3 3 L models 008449 ...
Page 257: ...Powerhead Powerhead Views 257 11 Port 3 4 L models 008441 ...
Page 258: ...258 Powerhead Powerhead Views Starboard 3 4 L models 008442 ...
Page 259: ...Powerhead Powerhead Views 259 11 Front 3 3 L models 008450 ...
Page 260: ...260 Powerhead Powerhead Views Front 3 4 L models 008439 ...
Page 261: ...Powerhead Powerhead Views 261 11 Rear 3 3 L models 007142 ...
Page 262: ...262 Powerhead Powerhead Views Rear 3 4 L models 008440 ...
Page 263: ...Powerhead Powerhead Views 263 11 Top 008438 ...
Page 264: ...264 Powerhead Powerhead Views Starboard ICON models 008504 ...
Page 269: ...Midsection Service Charts 269 12 Muffler 004117R ...
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