ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-M4
2. COOLING SYSTEM
[1] BOTTOM BYPASS SYSTEM
The 03-M Series have a bottom bypass system to
enhance the cooling performance.
When the temperature of the coolant in the engine is
low, the thermostat (1) stays closed. This lets the coolant
flow through the bypass pipe and around the engine.
When the temperature is more than the thermostat
valve opening level, the thermostat (1) opens up fully.
The hot coolant cannot flow through the bypass into the
engine and can flow into the radiator all. Thus, the
radiator can decrease the temperature of the coolant
more easily.
M00000003ENM0004US1
(1) Thermostat (A) Bypass Opened
(B) Bypass Closed
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