engine oil RENAULT CLIO 1997 X57 / 1.G Petrol Engines Workshop Manual

ENGINE AND PERIPHERALS
S
pecifications10
CYLINDER HEAD
All the cylinder head bolts must be replaced systematically after removal.
Lubricate the threads and under all the bolt heads with engine oil.
90775S
METHOD OF TIGHTENING CYLINDER HEAD
Preseating the gasket
Initial tightening to 2 daN.m followed by angular tightening of 97° ±
2°
in the recommended order :
- tightening of
bolts 1-2,
- tightening of bolts 3-4-5-6,
- tightening of bolts 7-8-9-10.
Seatin
g of the gasket
Wait 3 minutes for the seal to settle.
Tightening
- Slacken bolts 1-2.
Re-tighten bolts 1-2 to 2 daN.m, then angle tighten to 97°
± 2°.
- Slacken
bolts 3-4-5-6.
Re-tighten
bolts 3-4-5-6 to 2 daN.m, then angle tighten to 97°
± 2°.
- Slacken bolts
7-8-9-10.
Re-tighten
bolts 7-8-9-10 to 2 daN.m , then angle tighten to 97°
± 2°.
No retightening of cylinder head.
Cylinder head gasket
Thickness of cylinder head gasket (mm): 1.3± 0.06(value for a compressed gasket)
10-10
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ENGINE AND PERIPHERALS
S
pecifications10
CRANKSHAFT
Number of bearings5
Roll hardened
journals (mm):
- nominal diameter 54.795 ± 0.01
- repair diameter 54.550 ± 0.005
Roll hardened crankpins (mm)
:
- nominal diamete
r43.98
- repair diameter43.73
End float 0.045 - 0.852 worn
0.045 - 0.252 unworn
There are shims of various thicknesses.
If grinding is carried out, the roll hardening mus
t
remain intact over an angle of 140° in the areas
shown by the arrows.
These areas are defined on sections (A) and (B) ta-
ken as an example.
0
- 0.02
0
- 0.02
79260-1G1
OIL PUMP
Minimum oil pressure at 80
°C:
- Idle spee
d1 bar
- 4000 rpm3 bars
The pump is of the gear pump type.
Remove the cover and the valve of the oil pump.
92313S
Checking the oil pump
Check the clearances:
Clearance
A(in mm) :
- minimum
0.110
- maximum0.249
80142R1
10-17
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ENGINE AND PERIPHERALS
Standard exchan
ge10
PREPARATION OF USED ENGINE FOR RETURN
The engine should be cleaned and drained (oil
and water
).
Leave on the used engine or put into the box use
d
for returning it:
- the dipstick and its guide,
- the flywheel or the starter plate,
- the clutch disc and mechanism,
- the fuel pump,
- the water pump,
- the crankshaft pulley,
- the cylinder head cover,
- the spark plugs,
- the belt tensioner,
- the pressure switch and temperature switch,
- the timing cover,
- the oil filter.
Do not forget to remove:
- all the flexible coolant pipes,
- the belt or belts (except timing belt).
The used engine must be fixed on to the wooden
base in the same way as the reconditioned en-
gine:
- plastic plugs and caps in place,
- cardboard cover all around it.
10-20
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97160-1S1
FigurineMethod
referencePart
NumberDescription
ENGINE AND PERIPHERALS
S
pecial tooling required10
96508S1
Mot. 133000 00 133 000 Oil filter cap, 66 mm diameter
Mot. 127300 00 127 300 Tool for checking belt tension
Mot. 133500 00 133 500Pliers for removing valve stem seals
98503S
10-23
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ENGINE AND PERIPHERALS
En
gine repair10
ENGINE REMOVAL
Fix the engine onto support
Mot. 792-03 with the
Mot. 1132 rods.
Drain:
- the engine oil,
- the cylinder block coolant (if the engine has a
drain plug).
10020R
92073R1
Refit the drain plugs.Remove:
- the engine wiring loom,
- the alternator and its belt,
- the crankshaft pulley; in order to do this, immo-
bilise it with tool
Mot. 582-01.
- the timing cover.
10-26
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ENGINE AND PERIPHERALS
En
gine repair10
Remove:
- the cylinder head cover,
- the inlet manifold,
- the hot air scoop,
- the exhaust manifold,
- the cylinder head bolts except for bolt (F) which
will only be slackened (use a Torx socket 12) in
order to pivot the cylinder head about this bol
t
by tapping it at (G) using a wooden block,Retain the liners using tool
Mot. 588.
Remove:
- the rocker shaft, noting the bolt positions:
• the 2 bolts (B) are solid,
• the 3 bolts (C) are hollow (oil passage).
92106R1
- the cylinder head.
92062R
92064R
10-28
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ENGINE AND PERIPHERALS
En
gine repair10
- the camshaft seal,
- the camshaft flange,
92078R
10010S
- the camshaft,
- the fuel pump (if fitted),
- the distributor with the ignition wiring loom,
- the thermostat housing,
- the spark plugs,
- the camshaft sprocket, after immobilising i
t
with
Mot. 799-01.
Compress the valve springs (e.g. with
FACOM tool
U43L).
Remove the collets, the upper cups, the springs,
the valves, the valve seals using the pliers
Mot.
1335 and the lower cups. The wearing of gloves is recommended during
this operation.
Do not allow any product to drip on to paintwork.
We would like to stress that the utmost care
should be taken in carr
ying out this operation to
prevent foreign bodies from penetrating the
pipes feeding oil under pressure to the camshafts
(pipes located both in the cylinder block and in
the c
ylinder head) and in the oil return pipe.
Failure to follow this instruction would in fact ris
k
blocking the nozzles of the valve rockers and qui-
ckly causing damage to the rocker cams and fin-
gers. Cleanin
g
It is very important not to scratch the sealing
faces of aluminium parts.
Use the product Decapjoint to dissolve any part of
the seal which remains.
Apply the product to the part to be cleaned; wai
t
about ten minutes, then remove it by means of a
wooden spatula.
10-29
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ENGINE AND PERIPHERALS
En
gine repair10
- the water pump,
92312R
- the three bolts mounting the oil pump sprocket
on the hub, and remove the sprocket and chain
assembly,
- the oil pump.
Carry out the marking of the big end shells with
reference to their bodies.
WARNING: Do not use a scriber tool for the mar-
kin
g, in order to avoid starting any cracks in the
connectin
g rods .
Use an indelible
pencil instead.
Remove:
- the big end shells and the bearings,
- the liner clamps
(Mot. 588),
- the "liners - pistons - connecting rods" assem-
blies,
- the bearing shells with their bearings (mar
k
them),
- the crankshaft (recover the side clearance
shims),
- the crankshaft bearings in the cylinder block.
EXTRACTING THE GUDGEON PINS
Place the piston on the "V" of the support with
the pin lined up with the clearance hole (two
marks (T) showing the centre of the hole assist this
alignment).
Use the extraction mandrel (E) to remove the
gudgeon pin on the press.
76555R
10-36
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ENGINE AND PERIPHERALS
En
gine repair10
ASSEMBLING THE CONNECTING RODS AND
PISTONS
The pistons are marked with an arrow stamped
onto their heads indicating the
flywheel end.
The connecting rods have no particular mounting
direction, but nevertheless the
bearin
g stop lugs
should be
positioned on the same side.
Follow the instructions below when assembling
the piston and the connecting rod:
- place the bush
B13 on the support and fix the
piston (with the arrow pointing upwards) onto
the bush with the clip,
92310R
- lubricate the centring device and the gudgeon
pin with engine oil,
- push the gudgeon pin into the mounting to
check that it slides freely, and re-centre the pis-
ton if necessary,The followin
g operations must be carried out qui-
ckl
y in order to reduce the heat loss to a mini-
mum.
When the piece of solder reaches its melting poin
t
(turns into a droplet):
- wipe off the droplet of solder,
- engage the centring guide in the piston,
- fit the connecting rod into the piston,
- quickly push in the gudgeon pin until the guide
reaches the bottom of the support base.
Check that the gudgeon pin remains within the
piston diameter for any connecting rod position in
the piston.
10-40
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ENGINE AND PERIPHERALS
En
gine repair10
92317S
91803G1 FITTING THE PISTON RINGS
Mount on the piston:
- the scraper ring (3),
- the taper compression piston ring (2), with the
"To
p" mark facing upwards,
- the upper piston ring (1), with the
"To
p" mark
facing upwards.
Once the seating of all the piston rings has been
adjusted, never alter this seating.
Oil and bed in the piston rings, seating the scrape
r
ring onto a solid part of the groove.Fit the "connecting rods - pistons - piston rings"
assemblies into the liners using the piston ring
compressor.
Before fitting the "liners - pistons - connecting
rods" assemblies into the cylinder block, do no
t
forget to fit the O-ring on each liner, ensuring
that it is not twisted.
Fit the assembly into the cylinder block in the pre-
established order, checking that a
0.1 mm shim
will pass freely between the liners.
92316S 918038630786314
10-41
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