Engine cooling system Mitsubishi Pajero 4

Cooling system — general information
The cooling system is designed to maintain the optimal thermal operating mode of the engine under any operating conditions. These engines use a liquid cooling system...

Basic data for repair and adjustment
Indicators Nominal value Maximum permissible value Radiator cap outlet valve opening pressure, kPa 93-123 83 Antifreeze concentration range, % 0-60 Thermostat Valve...

Cooling system — sealants
Application Recommended sealant Notes Cylinder Block Drain Plug ZM Nut Locking Part No. 4171 or equivalent Drying sealant (hardening sealant) Coolant pump Thermostat...

Checking the tightness of the cooling system
Caution: Do not remove the radiator cap when the coolant temperature is high, as this may cause injury because the coolant is under pressure. 1. Fill the radiator with...

Checking the coolant level
The coolant level should be between the "LOW" and "FULL" marks. Note: If the coolant level is too low, check for leaks and fill the coolant to the "FULL" mark.

Checking the properties of the coolant
1. Remove the radiator cap. Attention: Thoroughly remove moisture from the surface of all parts being tested. When removing the radiator cap tester from the radiator...

Checking the radiator cap
1. Remove the radiator cap, wet the seal with coolant, then install the tester. 2. Create a pressure of 93-123 kPa. 3. Check the pressure drop. 4. Replace the cap if the...

Checking the fan
1. If the coolant temperature is low (below 83°C), check the operation of the cooling fan. 1) Turn the ignition key to the "ON" position. 2) The cooling fan must be...

Replacing the coolant
Caution: Do not remove the radiator cap when the coolant temperature is high, as this may cause injury because the coolant is under pressure. Caution: When draining the...

Removal the cooling fan
Model with 6G7 engine 1. Remove the upper cooling fan housing cover (1). 2. Remove the drive belt. 1) Loosen the mounting nuts of the cooling fan clutch and cooling fan...

Installing a cooling fan
Model with 6G7 engine 1. Install the cooling fan clutch (6). 2. Install the cooling fan (5). 3. Install the cooling fan pulley (4). 4. Install the cooling fan and...

Removal the thermostat
Model with 6G7 engine Note: Disassembling the thermostat will adversely affect the efficiency of the cooling system. 1. Drain the coolant. 2. Remove the air filter...

Installing a thermostat
Model with 6G7 engine 1. Install the thermostat so that the air valve is directed strictly upward. Caution: Make sure there is no oil on the thermostat sealing ring....

Checking the Thermostat
1. Place the thermostat in a vessel with water, and heat the water while stirring it. Measure the temperature at which the valve begins to open. Nominal value: Valve...

Removal the water pump
Model with 6G7 engine 1. Drain the coolant. 2. Remove the air filter intake duct. 3. Remove the lower radiator hose. 4. Remove the drive belt. 5. Remove the thermostat....

Installing a water pump
Model with 6G7 engine 1. Install the thermostat housing gasket (15). 2. Install the thermostat housing (14). 3. Install the water pump inlet connection gasket (13). 4....

Removal water hoses and pipes
Model with 6G7 engine 1. Drain the coolant. 2. Remove the intake manifold. 3. Remove the upper radiator hose. 4. Remove the thermostat. 5. Remove the coolant hose (1)....

Installation of water hoses and pipes
Model with 6G7 engine 1. Install the coolant pipe gasket from the cylinder head (16). 2. Install the coolant pipe from the cylinder head (15). 3. Install the heater...

Checking the cooling system hoses and tubes
Check the cooling system hoses and pipes for cracks, damage or blockages. If any faults are detected, the cooling system hoses and pipes must be replaced.

Removal the radiator
Model with 6G7 engine 1. Drain the coolant. 2. Remove the air intake pipe. 3. Unscrew the radiator drain plug (1). 4. Remove the sealing ring (2). 5. Remove the radiator...

Installing a radiator
Model with 6G7 engine 1. Install the lower mount (13). 2. Install the radiator assembly (12). 3. Install the upper mount (11). 4. Install the radiator shroud (10). 5....

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Pajero 4 (2006-2021)

Pajero 1 and 2 (1982-1999)