Page 59 of 891

ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 34
CYLINDER HEAD REMOU NT I N G
Dismount the blocking device of the cyl-
inders jackets.
Mount: - cylinder head centering bushing on
the block; - cylinder head new gasket with the
marking “ TOP” upwards;
- cylinder head (lubricate the screws
ends and threads with engine oil).
REMARK:
In order to obtain a correct tighten-
ing of the cylinder head screws, remove
the oil that may be in the cylinder head
attachm ent whol es, by means of a sy-
rin ge.
CYL INDER HEAD TIGHTENING
METHOD
1. GASKET PRE-SETTING Tighten all screws to the required moment
of 2 daNm, then to an angle of 97° ± 2°,
observing the order indicated in the bellow
drawing.
Dismounting – Remounting
W ait for 3 minutes, stabilization time.2. CYLINDER HEAD TIGHTENING
Cylinder head tightening is to be performed
successive for the screws groups 1-2, 3-4,
5-6, 7-8 and 9-10; - unscrew 1-2 screws until total release;
- tighten the 1-2 screws to the required
moment of 2 daNm, then to 97°±2°
- repeat the releasin g and tightening op-
eration for the screws groups 3-4, 5-6, 7-8
and 9-10.
The cylinder head is not to be re-tight-
ened.
Continue by mounting: -rockers ramp, positioning item 1 from
the shaft towards distribution.
Tighten the ramp attachment screws 2 to the
required moment of 2.3 daNm, not be fore l u-
bricating with oil their heads and threads.
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Page 63 of 891

ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 38
2. Camshaft gear with marks
Rotate the engine until is reaching the Upper
Dead Point (cylinder 1 at ignition), and then con-
tinue until first item:
- adjust : exhaust 1
exhaust 3
- at second item :
-adjust : admission 1
admission 3
- at third item :
- adjust : exhaust 2
exhaust 4
- at fourth item :
- adjust : admission 2
admission 4
Dismounting – Remounting
Continue to mount:
- cylinder head cover equipped with a ne w cylinder head gasket, tighten the attachment
sc rews to the required moment of 1 daNm;
- water inlet pipe and the oil dipper guide (with new sealing rings);
- distribution casings;
-cr ankshaft pulley or pulleys; tighten the pulley hub screw to the required moment of 2
daN m, then to 68° ± 6°.
ATTENTION!
If the screw is not properly tighten, this may unloose, which may lead to the oil pump
no n-drive and to the distribution derangement, consequently to engine damaging.
- intake manifold and exhaust manifold, tighten the attachmen t screws to the required mo-
ment of 2.5 daNm;
- compressor and/or power steering support;
- alternator (see chapter 16”Alternator”);
- compressor- for vehicles equipped with air conditioning (see chapter 62 “Air condition-
ing”); -power steering pump-for vehicles equipped with power steering (see chapter 36 “Power
steering pump”);
-belt or accessories belt according to the method described in chapter 07” Accessories
b elt tensioning”.
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Page 64 of 891
ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 39
DISMOUNTIN G
Place the vehicle on a two-column eleva-
tor.
Disconnect the battery.
Drain the oil from engine.
Dismount the engine shield.
Dismou nt :
- front right wheel;
- front right wheel side fairing;
-r ight side tie-rod ( 1);
TIGHTENING MOMENTS (daNm)
Lower casing screws 1
Wheels screws 7,5
Tie-rod attachment nut 7,5
Tie rod attachment screw 2,7
Anti-roll connecting rod attachment screw (on frame) 6,2
Anti-roll connecting rod attachment screw (on gearbox) 10,5
- thermal protection screen;
- descending tube (see chapter 19 “Ex-
haust ”).
- Anti-roll connecting rod ( 2);
Lower c asing
2
1
Dismou nt the lower casing attachment screws.
In order to dismount the screws from crank-
s haft pulley side, a cardanic joint is to be used.
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Page 66 of 891
ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 41
DISMOUNTIN G
Drain the oil from the engine.
Dismount :
- lower casing (see chapter 10”Lower casing on vehicle”).
Dismount the oil pump attachmen t screws on casing.
Dismount the drive chain from the oil pump gear.
Dismount the oil pump cap.
Check the gears clearance in the oil pump (see chapter 10” Engine assembly”)
REMOU NT I NG
Perform the dismounting operations in the reverse order;
Fill up engine with oil
Check the oil pressure at 80 °C:
At idling 1 bar;
At 4000 rot/min 3 bar. Oil pump attachment screws 2.5
Oil pump cap attachment screws 1
TIGHTENING MOMENTS (daNm)
O
il pump
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Page 70 of 891

ENGINE E7J-26211
11 - 3
DISTRIBUTION SYSTEM
3
1
42
Cylinder head gasket
N
ecessary Special Tools
MOT 1202-01 Pliers for e lastic collars
MOT 1505 Belt te nsioning measurement device
MOT 484 Jackets clamping device Wrench for angle tightening
Wrench for “CLIC” collars
TIGHTENING MOMENTS ( daNm )
Te nsioning roller nut 5
Crankshaft pulley screw 2 + 68° ± 6°
Pendular suspension support screws 6.2
Hydro-elastic buffer nut 3.7
Wheels screws 7.5
C ylinder head screws ( see cylinder head tightening method)
DISMOUNTIN G
Place the vehicle on a two-columns eleva-
tor. Disc onnect the battery.
Dr ain the cooling circ uit by the radiator
lower part hose.
Dismount the distribution belt (see chap-
ter 11 “ D i s t ribution belt “)
Dismount t he air filter
Disconnect : - acceleration cable from the valve con-
trol lever; -valve position potentiometer connec-
tor (1);
-atmospheric pressure sensor connec-
tor (2);
-step-by-step engine connector( 3);
- temperature sensor connector ( 4)
from the inlet manifold .
Disconnect :
-induction coil connector ( 5);
-f uel hoses (supply/return);
- injectors connectors;
- spark plugs cables.
Dismount the three attachment screws of the
induction coil ( 6).
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Page 71 of 891
ENGINE E7J-26211
11 - 4
DISTRIBUTION SYSTEM
56
Cylinder head gasket
Dismount the hoses from the thermostat sup-
port.
Dismou nt :
- compressor (see chapter 62 “Air con-
ditioning”); -power steering pump (see chapter 36”
Power steering pump );
- alternator (see chapter 1 6 “Alterna-
tor” ); -
oil gauge guide;
- thermal screen;
- multi-purpose support;
- exhaust manifold.
Dismo unt :
- cylinder head screws except the screw
corresponding to A position, which is to be
loosen, then rotate the cylinder head around the
screw remained not-dismounted; - cylinder head.
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Page 74 of 891

ENGINE E7J-26212
12 - 2
F UEL M IXTURE
DENOMINATION PARTICU LARITIES
UCE injection SIEMENS - Connector with 90 ways
In jection system Sequential multi-point
I gnition Static with double coil PINI R (W)
I gnition control led by
RA- C0,52
ΩΩΩΩ
± 10%
UCE in
jectionRB-C0,52
ΩΩΩΩ
± 10%
R 1 -47,2 KΩΩΩΩ ±
10%
R
2-37,2 KΩΩ ΩΩ ±
10%
Characteristics
Detonation sensor Sagem – piezo-electric type
Tightening moment = 2 daNm.
RPM sensor ELECTRICFIL or SIEMENS
R = 200………….270 Ù
Spa rk plugs SAGEM – Type RFC 52 LZ
Ti ghtening moment = 2.5 –3 daNm
Fuel filter For de-pollution norm 1504
Mounted under the vehicle in front the fuel tank.
Replacement at every scheduled checking
For EURO 00 and EURO 96;
Insi de the fue l tank, attached on the fuel pump assembly.
Do not replace it separately.
Feeding pump Immersed in the fuel tank
For de-pol lution norm 1504:
- Flow: 1.3 l/min. Pressure: 3 bars at 12 V ten sion.
For EURO 00 and EURO 96:
- Pressure: 3.5 bars at 12 V tension.
Pressure regulator For de-pollution norm 1504:
Regulator attached on the injection ramp.
Adjusted pressure : 3 ± 0.2 b ars at zero depression
2.5± 0.2 bars at 500 mbars depression
For EURO 00 and EURO 96:
Mounted inside the fuel tank on the fuel pump assembly.
Adjusted pressure : 3.5 bars
Electro-magnetic Injectors SIEMEN S
R = 14.5 Ù ± 5 % AT 20 º C
Supply + 12V
Step by step engine R
A-D = 53 Ù 10% at 25º C
R
B- C = 53 Ù 10% at 25 ºC
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Page 76 of 891
ENGINE E7J-26212
12 - 4
F UEL M IXTURE
Body valve
2
2
1
I
II
DISMOUNTIN G
Disconnect the battery.
Dismount the air inlet duct from the battery
protection screen. Dismount the air filter four attachment
screws.
Disconnect the hose ( 1) for oil vapors re-
aspiration, between the cylinder head cover and
the air filter. Remove the air filter.
Disconnect :
〈 Dismount acceleration cable ( disconnect
the cable end from the body control lever and
extract it from the support sleeve) 〈 connectors
I – of the step-by-step engine
II – of the body potentiometer
( pull upwards the no.2 clamp and disconnect
the connector). Disconnect the body control lever
Dismount
the valve body.
REMOU NT I NG
Replace the valve body gasket.
Perform the dismounting operations in the
reverse order.
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