Page 44 of 891
ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 19
- clearance B (mm):
- minim 0.02
- maxim 0.86.
AT T E N T I O N !
Protect the distribution belt and the accessories belt in order to avoid the water and
cleaning materials splashing on them.
Chara cteristics
OIL PUMP
The oil pump is a gear wheels type.
Oil minimal pressure at 80°C is :
- at idling 1 bar
- at 4000 rpm 3 bar
Dismount the oil pump and check the
gearing clearances.
Check:
- cleara nce A ( mm)
- minim 0.110
- maxim 0.249
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Page 46 of 891
ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 21
CYLINDER HEA D DISMOUNTING
Drain the oil from the engine.
Dismount :
- wiring from the engine;
- compressor and/or power steering pump ( for vehicles equipped with air conditioning
unit and/or power steering); -compressor support and/or power steering pump support;
- alternator and its belt.
Dismounting – Remounting
Block the engine flywheel by means of the
MOT 582 device .
Dismou nt :
- oil dipper rod support;
- alternator belt tightening clamp;
-cr ankshaft pulley or pulleys ;
- pulley hub;
- distribution belt casings.
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Page 48 of 891

ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 23
Dismount:
-cylinder head cover;
-in take manifold and exhaust manifold;
-cy linder head screws, less the one with
the centering bushing, that shall be only loosed;
-rotate the cylinder he ad a round the
not-dismou nted screw by easy hammering by
means of a rubber hammer. -dismount the cylinder head;
- mount the jackets maintaining device
MOT 484 or the clamps MOT 588.
Dismounting – Remounting
MOT 484
Dismount :
-r ocker’s ramp; - camshaft
sealing ring;
- camshaft gear (t o be blocked by
means of MOT 799-01 device);
- camshaft;
- thermostat support;
- spark plugs;
- valves springs;
-v alves;
- valves oil sealing rings, by means of
the MOT. 1335 pliers.
Clean the c ylinder head by removing the
s tacked gasket.
It is very important not to scratch the
cylinder head on gasket seating face.
The Decapjoint product is to be used
for removing the remaining gasket stacked
pieces.
Apply the produc t on the area to be
cleaned, wait for about 10 minutes, and then
clean with a wooden spatula. During this operation protection gloves are
to be used.
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Page 49 of 891
ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 24
AT T E N T I O N !
Avoid foreign materials introduction
into the oil grooves, otherwise the latter
will clog, and consequently the rockers
s lides and cams rapid damaging.
The cylinder head flatness is checked by
means of a ruler and a kit of gauges.
Ma ximal permitted deformation: 0.05 mm.
REMARK:
The cylinder head is not to be rectifi ed.
CYLINDER HEAD ASSEMBLINGAll parts are to be lubricated with oil.
Mount the valve oil sealing rings 2 on the
valve guides 3, by means of an 11-mm
s ocket wrench.
The followings are to be mounted in order:
- washers 1 from valves springs bottom;
- new valves 4. -s
prings 5 ( identical for intake and
exhaust); - hoods 6
Compress the springs 5 then mount t he
half-cones 7 which are identical for intake and
exhaust. A
TTENTION!
N ew valves must have the same marking
8 with the old ones in order to avoid the
damaging of the seat/valve assembly.
Dismounting – Remounting
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Page 50 of 891
ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 25
Lubricate the camshaft with engine oil.
Mount the camshaft and its clamp.
Check the camshaft axial clearance, which
must be between 0.06 mm and 0.15 mm , in
case this one i s not corresponding, check the
clamp and the camshaft.
Dismounting – Remounting
Mount : -camshaft sealing gasket by means of
the MOT 1127 – 01 device. - thermostat support;
Loctite 518 is to
be used for its sealing. The l ayer H must be 0.6 till 1 mm thick
and is to be applied as per the following dia-
gram.
-camsha ft gear.
Camshaft gear is to be blocked by means
of the MOT 799 – 01 device and tighten its
a ttachment screw, to the required moment of
4.5 daNm (lubricate the screw head and
thread with engine oil).
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Page 52 of 891

ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 27
CYLINDER S BLOCK DISMOUNTING
Dismount :
- water inlet pipe and oil dipper rod
guide ( their sealing is performed by means of
rubber rings that must be replaced at each dis-
mounting); - clutch;
-engine flywheel, immobilized by means
of the MOT 582 ;
- lower crankcase;
-cr ankshaft gear;
- tightening roller;
-cr ankshaft closing casing;
Dismounting – Remounting
- water pump. Dismount
the oil pump attachment screws.
Dismo unt the oil pump and its driving chain.
Ma rk the connecting rod caps compared
with the connecting rod body.
AT T E N T I ON!
Do not use punches for marking in or-
der to avoid cracks occurring; a perma-
nent marker is to be used.
Dismo unt
- connecting rods caps and the bearings;
- jackets maintaining device MOT 484 or
clamps MOT 588 ;
- assembly jackets-pistons-connecting
rods; - bearings caps a nd their bearings;
- crankshaft and axial clearance bearings;
- bearings from the cylinders block.
PISTONS SHAFTS DI SMOUNTING
Place t he piston on the support lining up
the piston bolt (shaft) with the gap whole from
the support (two T lines for marking the whole
center are facilita ting the lining up).
Remove the bolts using a press by means
of the extraction mandrel E.
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Page 53 of 891
ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 28
CYLINDERS BLOCK REMOUNTING
Clean the cylinders block, especially t he
jackets s eating and sealing surfaces.
Preparation of assembly
“ pistons-jackets”
The parts contained in the kit are in pairs.
Ma rk the part s assembly from A to D in
order to keep the matching.
Dismounting – Remounting
Remove completely the anti-rust foil.
REMARK:
Never scrape the parts. Jackets over-height
These engines are equipped with rubber
rings for jackets sealing, ensuring only the seal-
ing, jackets being seated directly on the cylin-
ders block and over-height being done from
manufacturing. The checking of the jackets over-height is
to be performed as follows: - place the jackets in the cylinders block
without the sealing ring;
- check t he X over-he ight by means of
the devices MOT 251-01 and MOT 252-01.
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Page 55 of 891

ENGINE E7J-26210
ENGINE ASSEMBLY
10 - 30
The arrow marked on the piston head must
be oriented towards engine flywheel. The c onnecting rods ha ve no mounting
direction, but the ha lf-bearings spurs are to
be positioned on the same part. In order to assemble the piston and the
connecting rod, proceed as follows: -place the bushing B 13 on the support
and attach the piston (with the arrow oriented
upwards) on the bushing;
Dismounting – Remounting
- lubricate the centering guide and the
piston bolt with engine oil;
- check t he free gliding of the piston
bolt and the piston positioning.
When the connecting rod end is reaching
the necessary temperature (about 250 °C),
proceed to the ra pid of the piston bolt, as
follows: -introduce the centering guide in the
piston; - position the connecting rod i n the
piston;
-press till end the piston bold.
Check if the pi ston bolt is remaining re -
tired as against the piston outer diameter for
each of the connecting rod position in the pis-
ton.
Rings mounting
Mount the rings on the pi ston in the
following sequence: -
oiling ring ( 3);
-s ealing ri ng (2) w ith the mark “TOP”
upwards; -compression ri ng (1) with t he mark
“TOP” upward. The compression and sealing rings are to be
mounted with the slots disposed at 90° against
de bolt’s axle and displaced between them with
180°. The oiling ring is to be mounted with the
slot oriented at 45° against the bolt’s a xle.
The rings slots being adjusted, shall never be
reworked.
Lubricate the pistons with engine oil.
M ount the assemblies “connecting rod-
piston-rings” in the cylinder’s jackets, by means
of the mounting bushing. Mount the sealing gaskets on the cylinder
jackets.
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