Engine cooling and lubrication system Toyota Land Cruiser 70

Description of the lubrication system
Oil flow diagram (l series engines) To supply oil to the moving parts of the engine, a pressure lubrication system is adopted. Oil from the oil pan is sucked by the oil pump through the oil receiver. After passing...

Checking oil pressure
1. Checking the engine oil. Check the oil for contamination, water, discoloration and dilution. If the oil quality is not satisfactory, change the oil. Use oils (according to API classification) class CD or higher with...

Oil and oil filter change
Attention: Long-term and repeated contact with mineral oil removes natural oils from the skin, causing dryness, irritation, and dermatitis. In addition, the motor oils used contain potentially harmful ingredients that...

Oil pump
Removal the oil pump Note: When repairing the oil pump, the oil pan and oil receiver must be removed and cleaned. 1. Drain the engine coolant. 2. Drain the engine oil. 3. Remove the fan drive belts, fan and water pump...

Oil pump condition monitoring
1. Check the condition of the pressure reducing valve. Lubricate the valve with engine oil and check that it moves down smoothly (in the valve hole) under its own weight. If this condition is not met, replace the...

Assembling the oil pump
Engines 2L, 2L-T, 3L 1. Place the oil pump housing (timing belt cover) on wooden stands. Note: The height of the stands should be chosen so as not to damage the TDC indicator. 2. Install the drive and driven gears. a)...

Installing an oil pump
1. Installing the pump (timing belt covers). L-series engines a) Place a new gasket on the cylinder block. b) Install the timing belt cover with five bolts. Tightening torque: 23 Nm c) Install two nuts securing the fuel...

Oil cooler and bypass valves
1. Drain the coolant from the engine. 2. (2L-T) Remove the turbocharger 3. (For engines with preliminary fuel injection) Remove the EGR valve, tube, valve actuator and check valve assembly. 4. Remove the exhaust...

Removal the oil cooler and bypass valve (KZ series)
1. Drain the coolant. 2. Removing the bracket and accelerator drive levers. a) Disconnect the levers from the fuel injection pump. b) Unscrew the three bolts and remove the bracket and levers. 3. Remove the timing belt....

Checking the condition of the oil radiator and bypass valves
1. Checking the bypass valve L Series Apply a layer of engine oil to the valve and check that it moves smoothly downwards in the oil filter bracket under its own weight. If this condition is not met, replace the bypass...

Installing an oil cooler and bypass valves
L Series 1. Assemble the oil cooler and oil filter bracket. Install the new gaskets and oil cooler onto the filter bracket using the four nuts. Tightening torque 14 Nm 2. Install the oil cooler housing with a new gasket...

Oil injectors and check valves
Removal oil injectors and check valves 1. Drain the engine oil. 2. Remove the oil pan. 3. Remove the four check valves and four oil jets. Checking the condition of oil injectors and check valves 1. Check the check...

Description of the cooling system
Closed-type cooling system with forced circulation of coolant and expansion tank. The cooling system consists of a cooling jacket (inside the cylinder block and cylinder head), radiator, water pump, thermostat, cooling...

Checking and replacing engine coolant
1. Check the engine coolant level in the expansion tank. The coolant level should be between the "LOW" and "FULL" lines. If the level is low, check for leaks and add coolant to the "FULL" mark. 2. Checking the quality...

Water pump
Removal the water pump Engines 2L, 2L-T, 3L 1. Drain the coolant. 2. Remove the drive belts. 3. Remove the fan, fluid coupling and water pump pulley. Remove the four nuts securing the fluid coupling to the pulley, then...

Thermostat — Removal, Checking and Installation
Note: If the engine is constantly overheating, removing the thermostat will not bring positive results. The cause of overheating should be found and eliminated. Removal the thermostat 1. Drain the coolant (see the...

Radiator of the cooling system
Cleaning the radiator Using a water or steam cleaner, remove dirt from the radiator core. Warning: If high pressure cleaning is used (3.0 -3.5 MPa), care must be taken not to deform the radiator core fins. Checking the...

Generator (without electronic regulator)
Disassembling the generator 1. Remove the vacuum pump and sealing ring by unscrewing the three bolts. 2. Remove the brush holder cover by unscrewing the two nuts, terminal insulator, rubber washer, wire lock, brush...

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