1991 LEXUS SC400 Service Repair Manual

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Page 1865 of 4087

LEXUS SC400 1991 Service Repair Manual
(p) Connect the fuel return hose to the No. 2 fuel pipe andengine oil dipstick guide clamp.
(q) Connect the brake booster vacuum hose to the union.
12. INSTALL A/C COMPRESSOR (a) Install the A/C

Page 1866 of 4087

LEXUS SC400 1991 Service Repair Manual
(c) Connect the following hoses:(1) Reservior hose to radiator
(2) Upper radiator hose to water inlet
(3) Lower radiator hose to water outlet
(4) (A/T)
Two oil cooler hoses to radiator
16. INS TA

Page 1867 of 4087

LEXUS SC400 1991 Service Repair Manual
(c) Install the hose clamp.
(d) Connect the following hoses:(1) PS air hose to No. 4 timing belt cover
(2) PCV hose to No. 2 cylinder head cover
(e) Connect the volume air flow meter connector.

Page 1868 of 4087

LEXUS SC400 1991 Service Repair Manual
SERVICE SPECIFICATIONS
SERVICE DATA
±
ENGINE MECHANICAL Service SpecificationsEM±113
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Page 1869 of 4087

LEXUS SC400 1991 Service Repair Manual
SERVICE DATA (Contd)
EM±114±
ENGINE MECHANICAL Service Specifications
WhereEverybodyKnowsYourName

Page 1870 of 4087

LEXUS SC400 1991 Service Repair Manual
SERVICE DATA (Contd)
±
ENGINE MECHANICAL Service SpecificationsEM±115
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Page 1871 of 4087

$LEXUS SC400 1991 Service Repair Manual SERVICE DATA (Contd) TORQUE SPECIFICATIONS \ \ Part tightened NVm kgf Vcm ft Vlbf \ $

SERVICE DATA (Cont'd)
TORQUE SPECIFICATIONS
\
\
Part tightened NVm kgf Vcm ft Vlbf
\
\
Camshaft bearing cap X Cylinder head 20 200 14
\
No.1 cylinder head cover X Cylinder head5.45548 in. Vlbf\
\
No.2 cylinder head cover X Cylinder head 5.4 55 48 in. Vlbf\
\
Intake air connector X Air intake chamber 21 210 15\
\
Throttle body bracket X Throttle body 21 210 15\
\
Throttle body bracket X Cylinder head 21 210 15
\
\
EGR pipe X Intake manifold 21 210 15
\
\
EGR pipe X EGR valve 64 650 47
\
\
Spark plug X Cylinder head 18 180 13
\
\
Throttle body X Intake air connector 21 210 15
\
\
Idler pulley X Oil pump 34 350 25
\
Crankshaft pulley X Crankshaft3243,300239\
\
Camshaft timing pulley X Camshaft 79 810 59\
\
Timing belt tensioner X Oil pump 26 270 20\
\
Drive belt tensioner X Cylinder head 21 210 15\
\
EGR cooler X Cylinder head 14 140 10
\

\
Engine coolant temperature sensor X Cylinder
head

20

200

14
\

\
Engine coolant temperature sender gauge X Cylin-
der head

20

200

14
\
\
Engine hanger X Cylinder head 39 400 29
\
Cylinder head X Cylinder block1st3435025\
\
2nd Turn 90
5
\
\
3rd Turn 905
\
\
No.4 Timing belt cover X Cylinder head 8.8 90 78 in.Vlbf\
\
Intake manifold X Cylinder head 21 210 15
\
\
Intake manifold stay X Intake manifold 39 400 29
\
\
Intake manifold stay X Cylinder head 39 400 29
\
\
No.1 fuel pipe X Intake manifold 8.8 90 78 in. Vlbf
\
\
No.2 fuel pipe X Intake manifold 8.8 90 78 in. Vlbf
\
\
Delivery pipe X Intake manifold 21 210 15
\
\
Air intake chamber X Intake manifold 21 210 15
\
Air intake chamber stay X Air intake chamber1818513\
\
Air intake chamber stay X Cylinder head 18 185 13\
\
Vacuum control valve set X Intake manifold 21 210 15\
\
No.2 vacuum pipe X Air intake chamber 21 210 15\
\
Water outlet X Cylinder head 21 210 15
\
\
Water by±pass outlet X Cylinder head 8.8 90 78 in. Vlbf
\
\
Exhaust manifold X Cylinder head 39 400 29
\
\
Exhaust manifold heat insulator X Exhaust manifold 18 185 13
EM±116±
ENGINE MECHANICAL Service Specifications
WhereEverybodyKnowsYourName

Page 1872 of 4087

LEXUS SC400 1991 Service Repair Manual
TORQUE SPECIFICATIONS (Contd)
Part tightened NVm kgf Vcm ft Vlbf
Main bearing cap

TORQUE SPECIFICATIONS (Cont'd)
Part tightened NVm kgf Vcm ft Vlbf
Main bearing cap X Cylinder block 1st 44 450 33
2nd Turn 90 5
Connecting rod cap X Connecting rod 1st 29 300 22
2ndTurn 905 Rear oil seal retainer X Cylinder block 5.9 60 52 in.Vlbf Oil filter bracket X Cylinder block 88 900 65 LH engine mounting bracket X Cylinder block 58 590 43 RH engine mounting bracket X Cylinder block 58 590 43
Knock sensor X Cylinder block 44 450 33
Oil pressure switch X Cylinder block 14 150 11
Fuel pipe support X Cylinder block 14 145 10
Fuel pressure pulsation damper 41 420 30
(for SST) 35 350 25
Generator X Cylinder block 37 380 27
Flywheel X Crankshaft (M/T)1st4950036 2nd Turn 90 5
Drive Plate X Crankshaft (A/T) 98 1,000 72 Starter X Transmission 39 400 29 Oil cooler pipe X Transmission (A/T) 34 350 25
Rear engine mounting member X Body 25 260 19

Rear engine mounting member X Engine mounting
insulator

13

135

10
Intermediate shaft X Propeller shaft 74 750 54
Propeller shaft center bearing X Body 49 500 36
No.2 front exhaust pipe X Exhaust manifold6263046 Front exhaust pipe X No.2 front exhaust pipe 43 440
Clutch release cylinder X Transmission (M/T) 12 120 9 Fuel inlet hose X Fuel pipe support 34 350 25 A/C compressor X Cylinder block Through bolt 26 265 19
Bolt and nut 52 530 38
PS pump X Cylinder block 58 590 43
PS pump X A/C compressor 58 590 43
PS pump X Pump rear stay 39 400 29
Cylinder block X Pump rear stay 39 400 29
Fluid coupling X Water water pump 16 165 12
±
ENGINE MECHANICAL Service SpecificationsEM±117
WhereEverybodyKnowsYourName

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