Lexus IS250 · Service Manual SERVICE SPECIFICATIONS

TORQUE SPECIFICATIONS

Specifications

DRIVE BELT 
Part Tightened
N*m
kgf*cm
ft.*lbf
No. 1 air cleaner inlet x Body
5.0
51
44 in.*lbf
ENGINE FRONT OIL SEAL 
Part Tightened
N*m
kgf*cm
ft.*lbf
Crankshaft pulley x Crankshaft
250
2,550
184
ENGINE ASSEMBLY 
Part Tightened
N*m
kgf*cm
ft.*lbf
Air cleaner case sub-assembly x Body
5.0
51
44 in.*lbf
Air cleaner inlet No. 1 x Body
5.0
51
44 in.*lbf
Cooler compressor assembly x Engine assembly
25
255
18
Front exhaust pipe assembly x Exhaust manifold
62
632
46
Exhaust pipe No. 1 support bracket sub-assembly x Exhaust manifold (A/T)
for Nut
62
632
46
for Bolt
43
438
22
Front No. 1 floor heat insulator
5.0
51
44 in.*lbf
Front floor brace center x Body
7.4
75
65 in.*lbf
Rear No. 1 floor panel brace
19
194
14
Front axle assembly x Suspension arm
120
1,224
89
Tie rod assembly x Suspension arm
63
663
48
Drive plate x Engine assembly (A/T)
83
846
61
Generator assembly x Engine assembly
43
438
32
Generator assembly x Wire harness
9.8
100
87 in.*lbf
Generator bracket
20
204
15
Starter assembly x Automatic transmission unit
58
591
43
Crossmember sub-assembly x Body
for Bolt
204
2,080
150
for Nut
167
1,700
123
Front stabilizer bar x Body
49
500
36
Suspension member brace x Body
50
510
37
Surge tank stay No. 2
21
214
15
Exhaust manifold sub-assembly x Engine assembly
21
214
15
Ignition coil x Engine assembly
10
102
7
Engine mount bracket x Engine assembly
43
439
32
Engine mount bracket x Engine mounting insulator
35
357
26
Injector driver x Engine assembly
10
102
7
Water pump pulley x Engine assembly
21
214
15
Oil level gauge guide x Engine assembly
10
102
7
Oil level gauge guide No. 2 x Engine assembly
21
214
15
Battery positive cable x Battery
13
133
10
Engine wire x Engine room No. 1 junction block
12
124
9
Ground cable x Cylinder head cover
13
133
10
Engine wire No. 3 x Body
8.5
87
75 in.*lbf
Front suspension member protector lower x Front suspension crossmember sub-assembly
8.0
82
71 in.*lbf
Height control sensor link x Suspension link
5.4
55
48 in.*lbf
Front shock absorber assembly x Suspension lower arm
157
1,600
116
Power steering earth wire x Power steering link assembly
5.0
51
44 in.*lbf
Power steering link wire x Power steering wire bracket
13
130
10
Engine rear mounting member x Body
26
265
19
Flywheel sub-assembly x Engine assembly (M/T)
73
741
54
No. 2 idler pulley sub-assembly x Engine assembly
43
439
32
V-ribbed belt tensioner assembly x Engine assembly
43
439
32
Water hose joint x Engine assembly
10
102
7
Radio setting condenser x Cylinder head cover
10
102
7
V-bank cover bracket x Cylinder head cover
10
102
7
Engine oil level sensor x Oil pan
7.0
71
62 in.*lbf
Oil pressure switch assembly x Engine assembly
15
153
11
Engine coolant temperature sensor x Engine assembly
20
204
15
ENGINE UNIT 
Part Tightened
N*m
kgf*cm
ft.*lbf
Camshaft bearing cap x Camshaft housing
1st
10
102
7
2nd
16
163
12
Camshaft housing x Cylinder head sub-assembly
28
286
21
No. 1 chain tensioner x Cylinder head sub-assembly
10
102
7
No. 2 chain tensioner x Cylinder head sub-assembly
21
214
15
No. 3 chain tensioner x Cylinder head sub-assembly
21
214
15
Camshaft timing gear assembly x Camshaft
100
1,020
74
Engine rear oil seal retainer x Cylinder block sub-assembly
10
102
7
Knock sensor x Cylinder block sub-assembly
20
204
15
Water outlet pipe sub-assembly x Cylinder block sub-assembly
10
102
7
Cylinder head x Cylinder block sub-assembly
1st
36
367
27
2nd
Turn 90°
Turn 90°
Turn 90°
3rd
Turn 90°
Turn 90°
Turn 90°
Cylinder head sub-assembly x Cylinder block sub-assembly
Recessed head 1st
36
367
27
2nd
Turn 90°
Turn 90°
Turn 90°
3rd
Turn 90°
Turn 90°
Turn 90°
14 mm (0.55 in.) head
30
306
22
No. 1 chain vibration damper x Cylinder block sub-assembly
23
230
17
No. 1 idle gear x Cylinder block sub-assembly
60
612
44
Timing chain cover plate x Timing chain or belt cover sub-assembly
9.1
93
81 in.*lbf
Timing chain or belt cover sub-assembly
Bolt A
43
438
32
except Bolt A
21
214
15
Nut
21
214
15
Water pump assembly x Timing chain or belt cover sub-assembly
Bolt A
21
214
15
except Bolt A
9.1
93
81 in.*lbf
Oil pan baffle plate x Cylinder block sub-assembly
10
102
102
Oil strainer stud bolt x Cylinder block and timing chain cover
4.0
41
35 in.*lbf
Oil pan stud bolt x Oil pan sub-assembly
4.0
41
35 in.*lbf
Oil strainer sub-assembly x Cylinder block and timing chain or belt cover
10
102
102
Oil pan sub-assembly x Cylinder block and timing chain cover :bolt
Bolt A
10
102
7
except Bolt A
21
214
15
Oil pan sub-assembly x Cylinder block and timing chain cover :nut
21
214
15
No. 2 oil pan sub-assembly x Oil pan sub-assembly
10
102
7
Oil pan drain plug x No. 2 oil pan sub-assembly
40
408
30
Crankshaft pulley x Crankshaft
250
2,550
184
Cylinder head cover sub-assembly (Bank 1) x Cylinder head sub-assembly RH
Bolt A
21
214
15
except Bolt A
10
102
7
Cylinder head cover sub-assembly (Bank 2) x Cylinder head sub-assembly LH
Bolt A
21
214
15
except Bolt A
10
102
7
Rear water by-pass joint x Cylinder head sub-assembly
10
102
7
With thermostat water inlet sub-assembly set nut
10
102
7
Water inlet set bolt and nut
10
102
7
Oil filter cap x Oil pan sub-assembly
25
255
18
Camshaft position sensor
10
102
7
Ventilation valve x Cylinder head cover sub-assembly LH
27
275
20
Oil check valve bolt x Cylinder block sub-assembly
60
612
44
Oil pipe union x Cylinder head cover sub-assembly
60
612
44
Crankshaft position sensor x Cylinder block sub-assembly
10
102
7
Camshaft timing oil control valve assembly x Cylinder head cover
10
102
7
Cylinder block water drain cock sub-assembly
30
306
22
Water drain cock plug x Water drain cock sub-assembly
13
130
9
Spark plug x Cylinder head sub-assembly
25
254
18
Stud bolt x Cylinder sub-assembly
for A and B bolts
10
102
7
for C bolts
4.0
41
35 in.*lbf
Union x Cylinder head sub-assembly
15
153
11
With head screw plug x Cylinder head sub-assembly
44
449
32
With head screw plug x Cylinder head sub-assembly
80
816
59
Main bearing cap x Cylinder block sub-assembly
16 point head 1st
61
622
45
2nd
Turn 90°
Turn 90°
Turn 90°
12 mm head
26
265
19
Connecting rod cap x Connecting rod
1st
25
250
28
2nd
Turn 90°
Turn 90°
Turn 90°
Stud bolt x Cylinder block sub-assembly
10
102
7
No. 1 sub-assembly oil nozzle x Cylinder block sub-assembly
9.0
92
80 in.*lbf
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