Turbocharger Installation
Engine. Lexus Is250, Is220D. Gse20 Ale20
INSTALL STUD BOLT
INSTALL TURBO OIL OUTLET PIPE
INSTALL WATER PIPE
INSTALL TURBOCHARGER SUB-ASSEMBLY
INSTALL NO. 2 TURBO OIL PIPE
INSTALL TURBO OIL OUTLET HOSE
INSTALL NO. 3 WATER BY-PASS HOSE
INSTALL NO. 1 TURBO INSULATOR
INSTALL TURBOCHARGER STAY
INSTALL EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY
INSTALL FRONT EXHAUST PIPE ASSEMBLY
INSTALL BATTERY TRAY
INSTALL POWER STEERING ECU ASSEMBLY
INSTALL AIR HOSE
INSTALL NO. 2 AIR HOSE
INSTALL NO. 1 AIR TUBE
INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE
CHECK FOR EXHAUST GAS LEAKS
INSTALL ENGINE ROOM SIDE COVER RH
INSTALL COOL AIR INTAKE DUCT SEAL
INSTALL NO. 1 ENGINE COVER
Turbocharger -- Installation |
Install the 2 stud bolts (turbo oil outlet pipe side).
- Torque:
- 5.0 N*m{51 kgf*cm, 44 in.*lbf}
Install the 3 stud bolts (exhaust manifold side).
- Torque:
- 20 N*m{204 kgf*cm, 15 ft.*lbf}
Install the 3 stud bolts (exhaust manifold convertor side).
- Torque:
- 10 N*m{102 kgf*cm, 7 ft.*lbf}
2. INSTALL TURBO OIL OUTLET PIPE |
Install a new gasket and the turbo oil outlet pipe with the 2 nuts.
- Torque:
- 11 N*m{112 kgf*cm, 8 ft.*lbf}
Temporarily install 2 new gaskets, No. 1 turbo water pipe sub-assembly and No. 2 turbo water pipe sub-assembly with the 2 union bolts and bolt.
Tighten the 2 union bolts (*2).
- Torque:
- 38 N*m{388 kgf*cm, 28 ft.*lbf}
Tighten the bolt (*1).
- Torque:
- 28 N*m{286 kgf*cm, 21 ft.*lbf}
4. INSTALL TURBOCHARGER SUB-ASSEMBLY |
Install the No. 1 turbo water hose to the turbocharger sub-assembly.
- HINT:
- Install the clip an line up the paint marks as shown in the illustration.
Install the No. 1 turbo water hose to the No. 1 turbo water pipe.
Install a new gasket and turbocharger sub-assembly with the 3 nuts.
- Torque:
- 60 N*m{612 kgf*cm, 44 ft.*lbf}
5. INSTALL NO. 2 TURBO OIL PIPE |
Temporarily install 2 new gaskets and No. 2 turbo oil pipe with the 2 union bolts and bolt.
Tighten the 2 union bolts (*1).
- Torque:
- 35 N*m{357 kgf*cm, 26 ft.*lbf}
Tighten the bolt (*2).
- Torque:
- 18 N*m{184 kgf*cm, 13 ft.*lbf}
6. INSTALL TURBO OIL OUTLET HOSE |
Using pliers, slide the clip to install the turbo oil outlet hose.
7. INSTALL NO. 3 WATER BY-PASS HOSE |
Connect the No. 3 water by-pass hose.
8. INSTALL NO. 1 TURBO INSULATOR |
Install the insulator with the 2 bolts.
- Torque:
- 25 N*m{255 kgf*cm, 18 ft.*lbf}
9. INSTALL TURBOCHARGER STAY |
Install the turbocharger stay with the 3 bolts.
- Torque:
- 56 N*m{571 kgf*cm, 41 ft.*lbf}
10. INSTALL EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY |
Temporarily install the No. 1 manifold stay.
Temporarily install a new turbine outlet elbow gasket and exhaust manifold converter with the 3 nuts.
Temporarily install the 2 bolts and nut.
Tighten the 3 nuts (Pushing the manifold converter against the No. 1 manifold stay).
- Torque:
- 25 N*m{255 kgf*cm, 18 ft.*lbf}
Tighten the 2 bolts and nut.
- Torque:
- 56 N*m{571 kgf*cm, 41 ft.*lbf}
Temporarily install the No. 2 exhaust manifold stay with the 2 bolts and nut.
Tighten the 2 bolts (Pushing the No. 2 exhaust manifold stay against the manual transmission).
- Torque:
- 56 N*m{571 kgf*cm, 41 ft.*lbf}
Tighten the nut.
- Torque:
- 56 N*m{571 kgf*cm, 41 ft.*lbf}
Using pliers, slide the clip to install the No. 1 and No. 2 vacuum transmitting hose assembly.
- HINT:
- Make sure that the paint marks on the No. 1 and No. 2 vacuum transmitting hose assemblies and No. 1 and No. 2 vacuum pipes are aligned.
11. INSTALL FRONT EXHAUST PIPE ASSEMBLY |
Using vernier calipers, measure the free length of the compression springs.
- Minimum length:
- 38.5 mm (1.516 in.)
If the free length is less than the minimum, replace the compression spring.
Fully insert 2 new gaskets to the exhaust manifold converter and front exhaust pipe assembly by hand.
- NOTICE:
- Be careful with the installation direction of the gasket.
- Do not reuse the gasket.
- Do not damage the gasket.
- To ensure a proper seal, do not use the tail exhaust pipe to force the gasket onto the front exhaust pipe.
- HINT:
- Using a plastic hammer, uniformly strike the gasket so that the gasket and front exhaust pipe are properly fit.
Install the front exhaust pipe assembly.
Install the 2 bolts and 2 compression springs.
- Torque:
- 43 N*m{439 kgf*cm, 32 ft.*lbf}
- NOTICE:
- After installation, check that the clearance is almost the same at any point between the flanges of the tail exhaust pipe assembly and front exhaust pipe assembly.
Install the 2 bolts and 2 compression springs.
- Torque:
- 43 N*m{439 kgf*cm, 32 ft.*lbf}
- NOTICE:
- After installation, check that the clearance is almost the same at any point between the flanges of the exhaust manifold converter and front exhaust pipe assembly.
13. INSTALL POWER STEERING ECU ASSEMBLY |
- HINT:
- (Click here)
15. INSTALL NO. 2 AIR HOSE |
Install the No. 2 air hose to the intercooler and secure it with the clip.
- HINT:
- Make sure that the claws on the clip are positioned as shown in the illustration.
16. INSTALL NO. 1 AIR TUBE |
Align the matchmarks, install the No. 1 air tube to the intercooler and secure it with the 2 clips.
- HINT:
- Make sure that the claws on the 2 clips are positioned as shown in the illustration.
17. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE |
Install the air cleaner cap with air cleaner hose.
Connect the No. 2 ventilation hose (*1).
Connect the hose band (*2).
Connect the mass air flow meter connector (*3).
Connect the 3 clamps (*4).
18. CHECK FOR EXHAUST GAS LEAKS |
19. INSTALL ENGINE ROOM SIDE COVER RH |
Install the side cover with the 2 clips.
20. INSTALL COOL AIR INTAKE DUCT SEAL |
Install the intake duct seal with the 11 clips.
21. INSTALL NO. 1 ENGINE COVER |
Install the No. 1 engine cover.