clutch NISSAN 300ZX 1984 Z31 Heather And Air Conditioner Workshop Manual

COMPRESSOR OIL--For MJS170
Checking and Adjusting
The oil used to lubricate the compressor is circulat-
ing with the refrigerant
Whenever replacing any component of the system
of
a large amount of gas leakage occurs, add oil to
maintain the original amount
of oil
Total amount of oil in the system:
150 mP (5.1 US fl 02, 5.3 Imp fl 02)
KV994A9690
KV992C50822 /
i;(V994A9690 SHAO17A
1
2
3
Connect oil separator KV994A9690 between
compressor discharge
side and condenser
Evacuate and charge the system
Operate compressor
at engine idling with air
conditioner
set for maximum cooling and high
fan speed
4 Stop compressor operation after 10 minutes
Never allow engine speed to exceed idling speed
CAUTION.
Do not continue compressor operation for more
than 10 minutes
5 Disconnect oil separator and connect refriger-
ant line
to original positions
6 Disconnect low flexible hose from compressor
suction
valve
7 Add new oil from compressor suction port
Amount of oil to be added:
120 mP (4.1 US fl oz,4.2 Imp fl 02)
Low pressure ride
SHA702
0 Oil remains unremoved in the system about 30
mP (1.0 US fl 02, 1 1 Imp fl 02).
8 After adding oil, rotate compressor clutch by
hand 5 to 10 turns
9 Connect refrigerant line and evacuate and
charge system
10 Conduct leak
test and performance test
11 Gradually loosen drain cap of oil separator to
release residual pressure Remove cap and drain
Oil
12 To prevent formation of rust and intrusion of
moisture or dust, perform the following before
placing oil separator kit into storage
1) Cap each opening of flexible hose and double
union securely
2) Cap oil separator, evacuate it from service
valve, and charge refrigerant
HA-23

COMPRESSOR OIL-For MJS170
Condition Amount of oil to be added mP IUS fl 02. Imp fl 02)
Replacement of compressor
Replacement of evaporator
Replacement
of receiver drver (liquid tank)
There is no sign of oil leakage
from condenser
1 Remove all oil from new and old compressors *
2 Charge new compressor with the same amount of
oil as was in the old compressor
80 (2 7,2 8)
Oil need not be added
Oil need not be added
Replacement Of ‘Ondenser There are evidences of a large
amount of
oil leakage from
condenser 60 (2 0.2 1)
There is no sign of oil leakage
There are evidences of a large
amount of
oil leakage 70 (2 4, 2 5) hose or pipe
Oil need not be added
There is no sign of oil leakage
There are evidences
of a large
amount
of oil leakage
Gas leakage
* Remove compressor oil as follows
1. With the compressor upside down, completely
drain the
oil through the suction port (from
the embossed letter
“s” mark side)
Oil need not be added
70 I2 4, 2 5)
2 When the oil stops flowing out, rotate the
clutch hub
two or three times to completely
drain the
oil
HA-24

COMPRESSOR-Model MJS170
Leak Test
EVACUATE AND CONDUCT LEAK TEST
7 KV994C1552
SHA907A
Clutch Replacement
When removing shaft nut, hold clutch hub with
Tool
Tool No.: KV99412302 (J24878-1)
Using Tool KV994C5780, clutch hub can be
removed easily

SHA268A
When assembling clutch hub, adjust hub-to-
pulley clearance with shims
SHA272A
SHA908A
BREAK-IN OPERATION
When replacing compressor clutch assembly, do
not forget break-in operation, accomplished by
engaging and disengaging the clutch about thirty
times Break-in operation
raises the level of trans-
mitted torque
HA-26

SERVICE DATA AND SPECIFICATIONS (S. D. S.)
General Specifications
COMPRESSOR
Model MJS170
Type Swash plate
Displacement
cm' lcu mllrev 170 110371
Cvllnder bore x stroke mm linl 40 0 x 22 6 I1 57 x 0 891
Clockwse
(viewed
from drive end1 Direcrion of rotafion
Type of driving belt HA type [Cogged belt1
LUBRICATING OIL
Model MJSl70
Type SUNISO 5GS
Capacitv
mP IUS fl OT, Imp fl OLI
Amount Of 011 in the system
Residual 011 level in the
operation and draining
0811
150 15 1.5 31
ryrrem (After 011 return 120141.421
REFRIGERANT
Type R-12
Capacity kg IIbI 09-1 1120-241
ENGINE IDLING SPEED
Non-
model
Turbocharged
model Traosmt6iton turbocharged
When AJC IS OFF MIT rpm 650 750 650 - 750
650 - 750 600.700
'pm at "D', range at "D" range
When AIC 81 ON MIT rpm 750-850 750 - 850
750.850 750.850
'IT at "D" range at "D" range
--Inspection and Adjustment -
COMPRESSOR
Model MJS170
0 5 -0 8 I0020 -00311 Clutch hub to pulley clearance mm lml ~~
BELT
TENSION
Belt deflection I [Apploed Pressure 1s 98 N I10 kg, 22 Ibll
0 4331 0 3541
SHA252B
HA-35

SPECIAL SERVICE TOOLS
Special tool or a commercial equivalent
Tool number
(Kent-Moore
No )
Tool name
KV99412302
(J24878-1)'
Clutch hub wrench
KV994C5780
(-1
Clutch hub puller
KV994C1143
(-1
Shaft seal remover and
installer
KV994C5784
( - 1.
Shaft seal pilot
KV994 12330
( - )*
Allen socket
KV994C5785
Cylinder head remover
( - )"
KV994A9690
Oil separator kit
(&)
KV992C5079
(-1
0 KV992C5081
(-1
Adapter connector A -
@ KV992C5082
(-)
Adapter connector B
KV994C1552
(-1
Charge nozzle
Tool
0
Tool number
(Kent-Moore
No )
Tool name
KV994C4548
(-)
Blind cover set
0 KV994C4531
(-)
Blind cover
@ KV994C4532
(-)
Gasket
@ KV994C4533
(-1
Gasket (Useless)
@ KV994C4534
(-)
Gasket (Useless)
@ KV994C4559
(-)
Bolt
Tool
HA-38