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Caution / Notice / Hint

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

Refer to PRECAUTION [11/2021 - ]



COMPONENTS (INSTALLATION) 

Fig 1: Cylinder Head Gasket Installation Components With Torque Specifications [11/2021 - 03/2022] (1 Of 9)
GTY1075671Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
1 CYLINDER HEAD GASKET 11115 See step  1 - -
2 CYLINDER HEAD SUB-ASSEMBLY 11101 See step  2 - -
3 VALVE STEM CAP 13716 See step  3 - -
4 VALVE LASH ADJUSTER ASSEMBLY 13750 See step  4 - -
5 NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY 13801 See step  5 - -
6 NO. 2 CAMSHAFT 13512 See step  6 - -
7 CAMSHAFT 13511 See step  7 - -
8 CAMSHAFT BEARING CAP - See step  8 - -
9 CAMSHAFT HOUSING SUB-ASSEMBLY 11103 See step  9 - -
10 FUEL PUMP LIFTER GUIDE 23477 See step  10 - -
*1 CYLINDER HEAD SET BOLT *2 PLATE WASHER
*3 NO. 1 CAMSHAFT BEARING CAP *4 NO. 2 CAMSHAFT BEARING CAP
*5 NO. 3 CAMSHAFT BEARING CAP *6 NO. 4 CAMSHAFT BEARING CAP
Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N.m (kgf/cm, ft.lbf) N.m (kgf/cm, ft.lbf): Specified torque
• Non-reusable part - -
*T1 1st: 90 (918, 66)
2nd: Turn 90°
3rd: Turn 90°		 - -
Fig 2: Cylinder Head Gasket Installation Components With Torque Specifications [11/2021 - 03/2022] (2 Of 9)
GTY1076438Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
11 TIMING CHAIN COVER ASSEMBLY 11310 See step  11 - -
12 CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 13070A See step  12 - -
13 SET NO. 1 CYLINDER TO TDC (COMPRESSION) - See step  13 - -
14 NO. 1 CHAIN VIBRATION DAMPER 13561 - - -
15 CHAIN TENSIONER SLIPPER 13559 - - -
16 NO. 1 CHAIN TENSIONER ASSEMBLY 13540 See step  16 - -
17 CHAIN SUB-ASSEMBLY 13506 See step  17 - -
18 CAMSHAFT TIMING GEAR ASSEMBLY 13050 See step  18 - -
19 OIL PUMP DRIVE CHAIN SUB-ASSEMBLY 13507A See step  19 - -
20 SET NO. 1 CYLINDER TO TDC (COMPRESSION) - See step  20 - -
*1 CHAIN TENSIONER PLATE *2 CHAIN DAMPER SPRING
*3 OIL PUMP DRIVE SPROCKET *4 OIL PUMP DRIVE SHAFT SPROCKET
*5 CRANKSHAFT TIMING SPROCKET *6 CAMSHAFT TIMING VALVE ASSEMBLY
N.m (kgf/cm, ft.lbf): Specified torque Do not apply lubricants to the threaded parts
Fig 3: Cylinder Head Gasket Installation Components With Torque Specifications [11/2021 - 03/2022] (3 Of 9)
GTY1076198Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
21 NO. 2 TIMING CHAIN COVER ASSEMBLY 11320B See step  21 - -
22 TIMING CHAIN COVER OIL SEAL 11301C See step  22 - -
23 SPARK PLUG TUBE GASKET 11193 See step  23 - -
24 CYLINDER HEAD COVER SUB-ASSEMBLY 11201 See step  24 - -
25 WATER OUTLET PIPE GASKET 16345 - - -
26 WATER BY-PASS OUTLET 16305E See step  26 - -
27 WATER OUTLET GASKET 16341 - - -
28 WATER OUTLET 16331 See step  28 - -
29 CRANKSHAFT PULLEY ASSEMBLY 13470 See step  29 - -
*1 CAMSHAFT POSITION SENSOR (for Intake Side) *2 CAMSHAFT POSITION SENSOR (for Exhaust Side)
*3 CRANKSHAFT PULLEY BOLT - -
Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N.m (kgf/cm, ft.lbf) N.m (kgf/cm, ft.lbf): Specified torque
• Non-reusable part MP grease
* Precoated part Do not apply lubricants to the threaded parts
Fig 4: Cylinder Head Gasket Installation Components [11/2021 - 03/2022] (4 Of 9)
GTY1066445Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
30 NO. 2 WATER BY-PASS HOSE 16264D - - -
31 NO. 1 WATER BY-PASS HOSE 16261Z - - -
Fig 5: Cylinder Head Gasket Installation Components With Torque Specifications [11/2021 - 03/2022] (5 Of 9)
GTY1075729Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
32 NO. 1 VACUUM PUMP O RING 29343 See step  32 - -
33 VACUUM PUMP ASSEMBLY 29300 See step  33 - -
34 CAM TIMING CONTROL MOTOR O-RING 13090E See step  34 - -
35 CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY 13090D See step  35 - -
36 CAM TIMING OIL CONTROL SOLENOID O-RING 15370A See step  36 - -
37 CAM TIMING OIL CONTROL SOLENOID ASSEMBLY 15370 See step  37 - -
38 TIMING GEAR COVER INSULATOR 11336A See step  38 - -
39 OIL PRESSURE CONTROL VALVE ASSEMBLY 15250 See step  39 - -
40 PURGE VALVE (PURGE VSV) 25860 - - -
41 ENGINE OIL LEVEL DIPSTICK GUIDE 11452 See step  41 - -
42 IGNITION COIL ASSEMBLY 19500 See step  42 - -
*1 ENGINE OIL LEVEL DIPSTICK *2 ENGINE MOUNTING BRACKET RH
N.m (kgf/cm, ft.lbf): Specified torque • Non-reusable part
* Precoated part - -
Fig 6: Cylinder Head Gasket Installation Components With Torque Specifications [11/2021 - 03/2022] (6 Of 9)
GTY1075138Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
43 FUEL INJECTOR SEAL 23255A See step  43 - -
44 INJECTOR VIBRATION INSULATOR 23291A See step  44 - -
45 C-RING - See step  45 - -
46 NO. 1 FUEL INJECTOR BACK-UP RING 23256 See step  46 - -
47 NO. 3 FUEL INJECTOR BACK-UP RING 23258 See step  47 - -
48 NOZZLE HOLDER CLAMP 23695A - - -
49 DIRECT FUEL INJECTOR ASSEMBLY 23250E See step  49 - -
50 FUEL DELIVERY PIPE 23814B See step  50 - -
51 WIRE HARNESS - - - -
52 PORT FUEL INJECTOR ASSEMBLY 23250F See step  52 - -
53 NO. 5 ENGINE WIRE 82125N - - -
54 INJECTOR VIBRATION INSULATOR 23291 - - -
55 NO. 1 DELIVERY PIPE SPACER 23807V - - -
56 FUEL DELIVERY PIPE SUB-ASSEMBLY 23807 See step  56 - -
57 NO. 7 WATER BY-PASS HOSE 16295 - - -
58 FUEL PUMP LIFTER ASSEMBLY 23470 See step  58 - -
59 FUEL PUMP SPACER GASKET 23224D - - -
60 TEMPORARILY INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 23100X See step  60 - -
61 TEMPORARILY INSTALL NO. 1 FUEL PIPE SUB-ASSEMBLY 23801P See step  61 - -
62 INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 23100X See step  62 - -
63 INSTALL NO. 1 FUEL PIPE SUB-ASSEMBLY 23801P See step  63 - -
64 FUEL TUBE SUB-ASSEMBLY 23910A See step  64 - -
*1 FUEL PIPE CLAMP *2 FUEL PUMP FLANGE
Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N.m (kgf/cm, ft.lbf) N.m (kgf/cm, ft.lbf): Specified torque
* For use with a union nut wrench • Non-reusable part
Fig 7: Cylinder Head Gasket Installation Components With Torque Specifications [11/2021 - 03/2022] (7 Of 9)
GTY1076136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
65 NO. 1 INTAKE MANIFOLD TO HEAD GASKET 17177 - - -
66 INTAKE MANIFOLD 17111 See step  66 - -
67 NO. 2 WATER BY-PASS PIPE 16278 See step  67 - -
68 NO. 3 WATER BY-PASS PIPE 16279 See step  68 - -
69 SET EGR VALVE ASSEMBLY 25620 See step  69 - -
70 INSTALL NO. 4 WATER BY-PASS HOSE 16281 - - -
71 NO. 1 EGR COOLER GASKET 25685 See step  71 - -
72 EGR VALVE GASKET 25627 See step  72 - -
73 EGR COOLER ASSEMBLY 25680 See step  73 - -
74 CONNECT NO. 4 WATER BY-PASS HOSE 16281 - - -
75 NO. 3 WATER BY-PASS HOSE 16267 - - -
76 INSTALL EGR VALVE ASSEMBLY 25620 See step  76 - -
77 EGR INLET GASKET 25628 - - -
78 EGR VALVE ADAPTER GASKET 25629 - - -
79 NO. 1 EGR PIPE SUB-ASSEMBLY 25601 See step  79 - -
80 THROTTLE BODY GASKET 22271 See step  80 - -
81 NO. 5 WATER BY-PASS HOSE 16282 See step  83 - -
82 THROTTLE BODY WITH MOTOR ASSEMBLY 22030 See step  82 - -
83 NO. 6 WATER BY-PASS HOSE 16283 See step  81 - -
*A w/ Stud Bolt *B w/o Stud Bolt
*C for Type A *D for Type B
N.m (kgf/cm, ft.lbf): Specified torque • Non-reusable part
Fig 8: Cylinder Head Gasket Installation Components With Torque Specifications [11/2021 - 03/2022] (8 Of 9)
GTY1075349Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
84 EXHAUST MANIFOLD TO HEAD GASKET 17173 - - -
85 EXHAUST MANIFOLD (TWC: Front Catalyst) 17141 See step  85 - -
86 MANIFOLD STAY 17118 See step  86 - -
87 NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 17167 - - -
88 NO. 2 WATER HOSE CLAMP BRACKET 16575B - - -
89 FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 16260 - - -
90 NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY 16207 See step  90 - -
N.m (kgf/cm, ft.lbf): Specified torque • Non-reusable part
Fig 9: Cylinder Head Gasket Installation Components With Torque Specifications [11/2021 - 03/2022] (9 Of 9)
GTY1077573Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
91 V-RIBBED BELT TENSIONER ASSEMBLY 16620D See step  91 - -
92 NO. 2 ENGINE COVER 12602C - - -
93 COMPRESSOR ASSEMBLY WITH PULLEY 88310 See step  93 - -
94 GENERATOR ASSEMBLY 27060 - - -
95 V-RIBBED BELT 16361A See step  95 - -
96 ENGINE HANGERS - See step  96 - -
97 ENGINE ASSEMBLY FROM ENGINE STAND - See step  97 - -
N.m (kgf/cm, ft.lbf): Specified torque - -
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