Page 45 of 933

ENGINE E7J-A-2/6010
10 - 21
ENGINE AND LOWER ENGINE UNITS
CAU T ION!
Avoid introducing foreign bodies
into the oil grooves and tubes; you may
risk blocking up the holes of the rocker
arms and rapidly deteriorating the
cams an d the gliding parts of the
rocker-arms.
The checking of the planeness of the
cylinder he ad i s to be done with a rul er
and a set of t hickness gauges
Maximum distortion allowed: 0.05 mm.
No rectification of t he combustion he ad
is authori zed.
R
E-MOUNTING
Oil all the parts.
Mount the valve oil-seal rings no. 2 by
means of a tubular-wrench of 11 size onto
the valve guides no. 3;
Mount in the fol lowing order:
-the washers no. 1 at the base of the
valve springs;
-the new valves no. 4.
-the springs no. 5 are identical for
both intake and exhaust; -caps no. 6;
Compress springs no. 5, then m ount the
s emi-cones no. 7, which are identical for
both intake and exhaust.
CYLI NDER HEAD
CAU T ION!
They must have the same line-up
marking (8) as the old ones in order
to avoid the destruction of the valve -
stool set.
RE CO VERY ENGINE
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Page 197 of 933
CV JH3 - 05021
MANUAL GEARBOX
21 - 5
CAPACITY , LUBRICANTS
Oil used : 75 W – 80 W; API GL5.
The qu antity of oil needed for the gearbox operation is 3. 5 liters .
Th e oiling of the gearbox parts is done by splash lubrication.
Checking of the oil level is done through the filling plug A.
CAPACITY , LUBRICANTS
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Page 202 of 933
CV JH3 - 05021
MANUAL GEARBOX
21 - 10
OBSERVATION :
The dismounting and checking of t he spare parts must be done on a surface coated
with rubber or soft plastic. Before taking apart the gearbox from the vehicle, drain the oil from the gearbox.
DISMOUNTING
Dismou nt :
- hydraulic receiver cylinder;
- the screws locate inside the crankcase.
Dismounting the cap attachment screws.
Th e back cap of the gearbox is extracted so that its setting surface should stay parallel to the
c onjoined surface of the gearbox, because this cap contains an oiling groove situated in the cylinder
bore of the primary shaft.
GEARBOX DISMOUNTING
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Page 210 of 933

CV JH3 - 05021
MANUAL GEARBOX
21 - 18
SECONDARY SHAFT REASSEMBLING
Before reassembling the secondary shaft, perform the parts checking, as follows: - the pinions and claws tooth must not show chips or excessive wear;
- ensure that working surfaces of the shafts and the inner parts of the pinions do not show
traces of gripping or abnormal wear. When reassemblin g, clean the oiling grooves made in the secondary shaft and all its component
parts are pre – oiled. Take into consideration that synchroniser hubs are matched with the sliding.
It is recommended to mark the positions of the sliding compared to the hubs.
The stopping rings shall be replaced after every dismounting.
Reassembling of the secondary shaft shall be performing the dismounting operations in the
reverse order. The stopping rings
are replaced after each dismounting.
Fo r mounting and dismounting the stopping rings, a pair of safety pincers to keep t he ends
apart, and, on the opposite side, a pair of flat tipped pincers to prevent the stopping ring breaking,
are to be used.
GEARBOX DISMOUNTING
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Page 408 of 933

AIR CONDITIONING
62
62 - 1
GENERALITIES
GENERALITIES
The purpose of the a ir conditioning unit i s to produce a decrease of t he temperature in the
passengers compartment a nd to obtain a l ower value t emperature compared to the external
environment one, reducing in the same time the air moisture.
MAINTENANCE
For a vehicle equipped with air conditioning, it is recommended a frequent checking of the
refrigerating agent level. During the year it is recommended:
- the checking of the refrigerant fluid filling;
- the cleaning and the air-blowing of the condenser and the cooling radiator fins;
- the checking of the condensation removal pipe on order not to be clogged.
For important leakage repair, for any components replacement (compressor, condenser, etc)
and if moisture was noticed in t he air conditioning circuit, the dryer filter tank is to be replaced
and the unit draining is to be performed. The same is valid also in case the conditioning circuit
remains open without protection covers more than 10 minutes.
IMP ORTANT
Duri ng winter, it is recommended the frequent start of the system, in order to pro-
long the lifetime of the compressor and of the whole system.
The vehicle equipped with an air conditioning system shall be not exposed for more
than 20 minutes i n painting c abin where there are temperatures higher than 80 °C.
It is obligatory the use of the refrigerating agent and compressor oil type prescribed
by the manufacturer. It is absolutely forbidden to perform welding on the elements of the air condition
circ uits. The filling of the air conditioning system can be pe rformed only by m eans of charging
units and observing the instructions of the manufacturer. For mechanical or body
operations it is recommended pi ping protection in order to avoid their disconnection
by accident. Avoid the drip of the oil compressor on the painted vehicle body.
For component replacement implying the circuit draining, it is absolutely necessary
the use of new parts and of a special oil for compressor.
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Page 558 of 933

89A
ELECTRICAL DIAGRAMS
89A - 6
PA
RTICULARITIES REGARDING THE CONNECTORS
DISCONNECTING METHOD
Because this vehicle is equipped with electronics systems controlling and checking different
functions, it is necessary the execution of the electric connection by means of some connectors
provided with securing de vices after coupling performing. Due t o this reason, i n c ase t heir
disconnecting is necessary, proceed observing the following observations:
- connectors for: ignition coil (pos.1), canister purging valve (pos.2), AC pressure sensor (pos.3),
atmospheric pre ssure sensor(pos.4), siren(pos.4), step-by-step engine (pos.5), valve potentiometer
(p os.6), cooling blower (pos.7) are to be disconnected after easy pulling the locking clamp in the
di rection shown by the arrow.
- the connectors for: RPM sensor (pos.8), front hood contact (pos.9) are to be disconnected
after easy pulling the locking clamp (A) in the arrow direction, for unlocking.
pos. 8
A
pos. 9
A
pos. 1pos. 2pos. 3
pos. 5 pos. 6
pos. 7pos. 4
C
B
A
pos.10
GENERALITIES
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