Engine Cooling System (Service Information): Removal & Installation Lexus LX J200 рестайлинг

REMOVAL [01/2012 - ]

HINT

If the thermostat is not installed, cooling efficiency decreases. Do not remove the thermostat as this will cause the engine to overheat easily.

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1. REMOVE V-BANK COVER SUB-ASSEMBLY . Refer to «REMOVAL [01/2012 - ] - Step 4»(ref-603899-S15938405752014031100000)
2. REMOVE ENGINE ROOM SIDE COVER LH . Refer to «REMOVAL [01/2012 - ] - Step 1»(ref-603939-S37335065822014031100000)
3. REMOVE ENGINE ROOM SIDE COVER RH . Refer to «REMOVAL [01/2012 - ] - Step 2»(ref-603939-S37335065822014031100000)
4. REMOVE UPPER RADIATOR SUPPORT SEAL . Refer to «REMOVAL [01/2012 - ] - Step 3»(ref-603939-S37335065822014031100000)
5. REMOVE FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY LH . Refer to «REMOVAL [01/2012 - ] - Step 3»(ref-603939-S14223310262014031100000)
6. REMOVE FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY RH . Refer to «REMOVAL [01/2012 - ] - Step 4»(ref-603939-S14223310262014031100000)
7. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY . Refer to «REMOVAL [01/2012 - ] - Step 6»(ref-603935-S04335390812014031100000)
8. DRAIN ENGINE COOLANT See step 7
9. REMOVE AIR CLEANER HOSE ASSEMBLY . Refer to «REMOVAL [01/2012 - ] - Step 11»(ref-603935-S18778108062014031100000)
10. REMOVE AIR CLEANER ASSEMBLY . Refer to «REMOVAL [01/2012 - ] - Step 29»(ref-603899-S15938405752014031100000)
11. REMOVE NO. 1 RADIATOR HOSE
12. REMOVE NO. 2 RADIATOR HOSE
13. REMOVE FAN SHROUD See step 15
14. REMOVE WATER INLET SUB-ASSEMBLY WITH THERMOSTAT Disconnect the No. 2 and No. 3 air hoses. Disconnect the air pump connector. Disconnect the air pump connector clamp holder. Using a clip remover, detach the wire harness clamp. Disconnect the No. 5 water by-pass hose. Remove the air tube bracket bolt. Remove the 3 nuts, water inlet with thermostat and gasket.

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1. INSPECT WATER INLET SUB-ASSEMBLY WITH THERMOSTAT HINT: The valve opening temperature is stamped on the water inlet with thermostat. Immerse the water inlet with thermostat in water and gradually heat the water. Check the valve opening temperature. Standard valve opening temperature 80 to 84°C (176 to 183°F) If the valve opening temperature is not within the specified range, replace the water inlet sub-assembly with thermostat. Check the valve lift. Standard valve lift 10.0 mm (0.394 in.) or more at 95°C (203°F) If the valve lift is not as specified, replace the water inlet with thermostat. Check that the valve is fully closed when the water inlet with thermostat is at a low temperature (below 77°C (171°F)). If it is not fully closed, replace the water inlet sub-assembly with thermostat.

INSTALLATION [01/2012 - ]

1. INSTALL WATER INLET SUB-ASSEMBLY WITH THERMOSTAT Install a new gasket and the water inlet with thermostat with the 3 nuts. Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) Install the air tube bracket bolt. Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) Connect the No. 5 water by-pass hose. HINT: Install the hose so that the direction of the hose clamp is as indicated in the illustration. Connect the air pump connector clamp holder. Attach the wire harness clamp. Connect the air pump connector. Connect the No. 2 and No. 3 air hoses.
2. INSTALL FAN SHROUD See step 2
3. INSTALL NO. 2 RADIATOR HOSE
4. INSTALL NO. 1 RADIATOR HOSE
5. INSTALL AIR CLEANER ASSEMBLY . Refer to «INSTALLATION [01/2012 - ] - Step 37»(ref-603899-S09376523212014031100000)
6. INSTALL AIR CLEANER HOSE ASSEMBLY . Refer to «INSTALLATION [01/2012 - ] - Step 10»(ref-603935-S22483772402014031100000)
7. ADD ENGINE COOLANT See step 8
8. INSPECT FOR COOLANT LEAK . Refer to «ON-VEHICLE INSPECTION [01/2012 - ] - Step 1»(ref-603897-S01960100022014031100000)
9. INSTALL UPPER RADIATOR SUPPORT SEAL . Refer to «INSTALLATION [01/2012 - ] - Step 2»(ref-603939-S19083820692014031100000)
10. INSTALL ENGINE ROOM SIDE COVER RH . Refer to «INSTALLATION [01/2012 - ] - Step 4»(ref-603939-S19083820692014031100000)
11. INSTALL ENGINE ROOM SIDE COVER LH . Refer to «INSTALLATION [01/2012 - ] - Step 3»(ref-603939-S19083820692014031100000)
12. INSTALL V-BANK COVER SUB-ASSEMBLY . Refer to «INSTALLATION [01/2012 - ] - Step 72»(ref-603899-S09376523212014031100000)
13. INSTALL NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY . Refer to «INSTALLATION [01/2012 - ] - Step 19»(ref-603935-S11012066642014031100000)
14. INSTALL FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY LH . Refer to «INSTALLATION [01/2012 - ] - Step 16»(ref-603939-S16664173542014031100000)
15. INSTALL FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY RH . Refer to «INSTALLATION [01/2012 - ] - Step 17»(ref-603939-S16664173542014031100000)

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1. INSPECT RADIATOR CAP SUB-ASSEMBLY WARNING: Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns. Visually check the radiator cap. If there are water stains or foreign matter on rubber packing 1, 2 or 3, clean it with water and finger scouring. Check that rubber packing 1, 2 and 3 are not deformed, cracked or swollen. Check that rubber packing 3 and 4 are not stuck together. Measure the valve opening pressure. Apply engine coolant to rubber packing 2 and 3 before using a radiator cap tester. When using the cap tester, tilt it more than 30°. Pump the cap tester several times, and check the maximum pressure. Pumping speed 1 pump per second HINT: Even if the cap cannot maintain the maximum pressure, it is not a defect. Standard Judgment Criterion Item Specified Condition Standard value (for brand-new cap) 93 to 123 kPa (1.0 to 1.3 kgf/cm 2 , 13.5 to 18 psi) Minimum standard value (after using cap) 79 kPa (0.8 kgf/cm 2 , 11.4 psi) If the maximum pressure is less than the minimum standard value, replace the radiator cap sub-assembly.
2. INSPECT FINS FOR BLOCKAGE Check that the radiator and condenser are not blocked with leaves, dirt, or insects. Clean the hose connections. If the fins are blocked, wash them with water or a steam cleaner. NOTE: If the distance between the steam cleaner and core is too close, the fins may be damaged. Keep the following injection distance. Standard Injection Distance Injection Condition Injection Pressure 300 mm (11.8 in.) 2942 to 4903 kPa (30.0 to 50.0 kgf/cm 2 , 427 to 711 psi) 500 mm (19.7 in.) 4903 to 7845 kPa (50.0 to 80.0 kgf/cm 2 , 711 to 1138 psi) If the fins are bent, straighten them with a screwdriver or pliers. Never apply water directly onto the electric components. Dry the fins with compressed air.

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1. REMOVE V-BANK COVER SUB-ASSEMBLY . Refer to «REMOVAL [01/2012 - ] - Step 4»(ref-603899-S15938405752014031100000)
2. REMOVE ENGINE ROOM SIDE COVER LH . Refer to «REMOVAL [01/2012 - ] - Step 1»(ref-603939-S37335065822014031100000)
3. REMOVE ENGINE ROOM SIDE COVER RH . Refer to «REMOVAL [01/2012 - ] - Step 2»(ref-603939-S37335065822014031100000)
4. REMOVE UPPER RADIATOR SUPPORT SEAL . Refer to «REMOVAL [01/2012 - ] - Step 3»(ref-603939-S37335065822014031100000)
5. REMOVE RADIATOR GRILLE . Refer to «REMOVAL [01/2012 - ] - Step 4»(ref-603939-S37335065822014031100000)
6. REMOVE RADIATOR SIDE DEFLECTOR RH (w/o Air Cooled Transmission Oil Cooler) Using a clip remover, remove the 5 clips and side deflector.
7. REMOVE RADIATOR SIDE DEFLECTOR LH Using a clip remover, remove the 5 clips and side deflector.
8. REMOVE FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY LH . Refer to «REMOVAL [01/2012 - ] - Step 3»(ref-603939-S14223310262014031100000)
9. REMOVE FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY RH . Refer to «REMOVAL [01/2012 - ] - Step 4»(ref-603939-S14223310262014031100000)
10. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY . Refer to «REMOVAL [01/2012 - ] - Step 6»(ref-603935-S04335390812014031100000)
11. DRAIN ENGINE COOLANT See step 7
12. REMOVE AIR CLEANER HOSE ASSEMBLY . Refer to «REMOVAL [01/2012 - ] - Step 11»(ref-603935-S18778108062014031100000)
13. REMOVE NO. 1 RADIATOR HOSE
14. REMOVE NO. 2 RADIATOR HOSE
15. REMOVE FAN SHROUD Loosen the 4 nuts holding the fluid coupling fan. Remove the fan and generator V belt. Refer to «REMOVAL [01/2012 - ] - Step 8»(ref-603899-S00080452952014031100000) . Disconnect the reservoir hose from the upper radiator tank. w/ Air Cooled Transmission Oil Cooler: Detach the claw to open the flexible hose clamp. Remove the 2 bolts and disconnect the oil cooler tube from the fan shroud. Remove the 2 bolts holding the fan shroud. Remove the 4 nuts of the fluid coupling fan, and then remove the shroud together with the coupling fan. NOTE: Be careful not to damage the radiator core. Remove the fan pulley.
16. REMOVE RADIATOR ASSEMBLY Disconnect the 2 oil cooler hoses. Remove the 4 bolts and radiator.

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1. INSTALL RADIATOR ASSEMBLY Set the radiator bracket hooks to the radiator support holes. Install the radiator with the 4 bolts. Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf) Connect the 2 oil cooler hoses.
2. INSTALL FAN SHROUD Install the fan pulley. Place the shroud together with the coupling fan between the radiator and engine. NOTE: Be careful not to damage the radiator core. Temporarily install the fluid coupling fan to the fluid coupling bracket with the 4 nuts. Tighten the nuts as much as possible by hand. Attach the claws of the shroud to the radiator as shown in the illustration. Install the shroud with the 2 bolts. Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) Connect the oil cooler tube to the fan shroud with the 2 bolts. Torque: 5.0 N*m (51 kgf*cm, 44 in.*lbf) w/ Air Cooled Transmission Oil Cooler: Pass the hose through the flexible hose clamp and close the clamp as shown in the illustration. Connect the reservoir hose to the upper radiator tank. Install the fan and generator V belt. Refer to «INSTALLATION [01/2012 - ] - Step 1»(ref-603899-S41151433572014031100000) . Tighten the 4 nuts of the fluid coupling fan. Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
3. INSTALL NO. 2 RADIATOR HOSE
4. INSTALL NO. 1 RADIATOR HOSE
5. INSTALL AIR CLEANER HOSE ASSEMBLY . Refer to «INSTALLATION [01/2012 - ] - Step 10»(ref-603935-S22483772402014031100000)
6. ADD ENGINE COOLANT See step 8
7. INSPECT FOR COOLANT LEAK . Refer to «ON-VEHICLE INSPECTION [01/2012 - ] - Step 1»(ref-603897-S01960100022014031100000)
8. INSTALL NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY . Refer to «INSTALLATION [01/2012 - ] - Step 19»(ref-603935-S11012066642014031100000)
9. INSTALL FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY LH . Refer to «INSTALLATION [01/2012 - ] - Step 16»(ref-603939-S16664173542014031100000)
10. INSTALL FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY RH . Refer to «INSTALLATION [01/2012 - ] - Step 17»(ref-603939-S16664173542014031100000)
11. INSTALL RADIATOR SIDE DEFLECTOR LH Install the side deflector with the 5 clips.
12. INSTALL RADIATOR SIDE DEFLECTOR RH (w/o Air Cooled Transmission Oil Cooler) Install the side deflector with the 5 clips.
13. INSTALL RADIATOR GRILLE . Refer to «INSTALLATION [01/2012 - ] - Step 1»(ref-603939-S19083820692014031100000)
14. INSTALL UPPER RADIATOR SUPPORT SEAL . Refer to «INSTALLATION [01/2012 - ] - Step 2»(ref-603939-S19083820692014031100000)
15. INSTALL ENGINE ROOM SIDE COVER RH . Refer to «INSTALLATION [01/2012 - ] - Step 4»(ref-603939-S19083820692014031100000)
16. INSTALL ENGINE ROOM SIDE COVER LH . Refer to «INSTALLATION [01/2012 - ] - Step 3»(ref-603939-S19083820692014031100000)
17. INSTALL V-BANK COVER SUB-ASSEMBLY . Refer to «INSTALLATION [01/2012 - ] - Step 72»(ref-603899-S09376523212014031100000)