Nissan Silvia. Instruction — part 225
SEM615G
1.
Throttle body
2.
IACV-FICD valve
3.
IACV-AAC valve
4.
Intake manifold collector
5.
Air pipe
6.
Intake manifold
7.
Engine coolant temperature sen-
sor
8.
Thermal transmitter
9.
Injector
10. Fuel tube assembly
11. Injector harness
GI
MA
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
OUTER COMPONENT PARTS
Removal and Installation (Cont’d)
EM-13
SEM616G
1.
Blow-by hose
2.
Oil level gauge
3.
Camshaft position sensor
4.
Exhaust manifold
5.
Turbocharger
6.
Water outlet
7.
Air inlet
8.
Oil tube
9.
Water tube
10. Oil return pipe
11. Exhaust manifold cover
12. Air outlet
13. Exhaust manifold outlet
14. Heated oxygen sensor
OUTER COMPONENT PARTS
Removal and Installation (Cont’d)
EM-14
NMEM0007
1.
Warm up engine.
2.
Turn ignition switch OFF.
3.
Release fuel pressure.
Refer to EC-27, “Fuel Pressure Release”.
4.
Remove all spark plugs.
5.
Disconnect distributor coil connector.
SEM973E
SEM387C
6.
Attach a compression tester to No. 1 cylinder.
7.
Depress accelerator pedal fully to keep throttle valve wide
open.
8.
Crank engine and record highest gauge indication.
9.
Repeat the measurement on each cylinder.
I
Always use a fully-charged battery to obtain specified
engine speed.
Compression pressure: kPa (kg/cm
2
, psi)/rpm
Standard
1,079 (11.0, 156)/300
Minimum
883 (9.0, 128)/300
Difference limit between cylinders
98 (1.0, 14)/300
10. If compression in one or more cylinders is low:
a.
Pour a small amount of engine oil into cylinders through spark
plug holes.
b.
Retest compression.
I
If adding oil helps compression, piston rings may be worn
or damaged. If so, replace piston rings after checking pis-
ton.
I
If pressure stays low, a valve may be sticking or seating
improperly. Inspect and repair valve and valve seat. Refer
to SDS, EM-87. If valve or valve seat is damaged
excessively, replace them.
I
If compression stays low in two cylinders that are next to
each other:
a)
The cylinder head gasket may be leaking, or
b)
Both cylinders may have valve component damage.
Inspect and repair as necessary.
GI
MA
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
MEASUREMENT OF COMPRESSION PRESSURE
EM-15
Checking
NMEM0043
SEM617G
1.
Inspect belt for cracks, fraying, wear and oil. If necessary,
replace.
2.
Inspect drive belt deflection or tension at a point on the belt
midway between pulleys.
I
Inspect drive belt deflection or tension when engine is
cold. Adjust if belt deflection exceeds the limit or if belt
tension is not within specifications.
I
Belt tension can also be checked at other points on the
belt.
DRIVE BELT DEFLECTION AND TENSION
Deflection adjustment
Unit: mm (in)
Tension adjustment *1
Unit: N (kg, lb)
Used belt
New belt
Used belt
New belt
Limit
After adjust-
ment
Limit
After adjust-
ment
Compressor
With air condi-
tioner com-
pressor
7 - 8
(0.28 - 0.31)
5 - 6
(0.20 - 0.24)
4 - 5
(0.16 - 0.20)
289.3
(29.5, 65)
556.1 - 645.3
(56.7 - 65.8,
125 - 145)
666.9 - 755.1
(68.0 - 77.0,
150 - 170)
Alternator
11 - 13
(0.43 - 0.51)
7 - 8
(0.28 - 0.31)
6 - 7
(0.24 - 0.28)
333.4
(34.0, 75)
645.3 - 733.6
(65.8 - 74.8,
145 - 165)
755.1 - 843.4
(77.0 - 86.0,
170 - 190)
Power steering oil pump
15 - 17
(0.59 - 0.67)
11 - 12
(0.43 - 0.47)
9 - 10
(0.35 - 0.39)
222.6
(22.7, 50)
377.6 - 466.8
(38.5 - 47.6,
85 - 105)
490.4 - 578.6
(50.0 - 59.0,
110 - 130)
Applied pushing force
98 N (10 kg, 22 lb)
—
*1: If the belt tension gauge cannot be installed at check points shown, check belt tension at a different location on the belt.
DRIVE BELTS
Checking
EM-16
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