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Introduction
Engine coolant · · · c) When the engine coolant temperature is 158 ℉ (70 ℃ ) or higher
Engine coolant flows into the radiator ( ⑥ ) via the thermostat ( ④ ) to dissipate heat, and
returns to the engine coolant pump ( ① ).
① : Engine coolant pump ⑦ : Engine coolant reserve tank ⑬ : Engine coolant temperature sensor
② : Exhaust air heat exchanger ⑧ : Engine ⑭ : Radiator cap
③ : Thermostat (140 ℉ (60 ℃ ) ⑨ : Gas mixer ⑮ : Exhaust air pipe
④ : Thermostat (158 ℉ (70 ℃ ) ⑩ : Gas regulator ⑯ : Exhaust water drain filter
⑤ : Sub heat exchanger ⑪ : Electromagnetic gas valve ⑰ : Exhaust water drain hose
⑥ : Radiator ⑫ : Air filter ⑱ : Sub oil reservoir
shows the coolant flow direction
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