2004 DACIA SUPERNOVA Repair Manual

ENGINE E7J-A-2/6010
10 - 9
ENGINE AND LOWER ENGINE UNITS
The dismantling (taking apart ) operations are done in the reverse order;
The screws and screw-nuts are tightened to the couple.ENGINE MOUNTING
IT IS
COMPULSORY TO CHANGE ALL THE DISMANTLED FITTINGS!
TIGHTENING COUPLES (daNm)
Fixing the alte rnator:
-M 10-125 screw
5
-M 10-35 screw2,1
Clutch mechanism2
Intake collector2,,5
Exhaust collector2,5
Fixing the compressor4
Compressor stand4
Int ermediate stand2
Stretching spool2
SE PARA TION - DISMANTLING
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ENGINE E7J-A-2/6010
10 - 10
ENGINE AND LOWER ENGINE UNITS
Combustion head height113 +/- 0,05 mm
Maximum distor tion of the plane of the fitting0,05 mm
No rectifi cation is authorized
Vo l u m e c h a m b e r s (with valves and spark plugs)26,25 cm3+/-0,6
Couple of spark plug tightening 2,5 - 3 daNm
VA L V E S
Diameter of base 7 mm
Angle of sealing face -intake 120
0
-exhaust 900
Diameter of platter
-intake 37,5+/-0,1 mm
-exhaust 33,5+/-0,1 mm
CHARASTERISTICS
C OMBUSTION HEAD
The combustion head is not restricted. Adjustment of rocker a rms is done only in cool
mode, and onl y when t here are engine interventions which have an i nfluence on their play. The adjustment values are:
-for intake: 0.10
-for exhaust: 0.25
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ENGINE E7J-A-2/6010
10 - 11
ENGINE AND LOWER ENGINE UNITS
VALVE STOOLS
Angle of sealing face (a)
-intake 1200
-exhaust 900
Length of sealing face (x)
-intake 1,7+/-0,1mm
-exhaust 1,7+/-0,1mm
O uter diameter (D)
-intake 38,5 mm
-exhaust 34,5 mm
VA L V E GUIDES
The intake and the exhaust guides are equipped with oil-sealings, which have to be
replaced for every dismantling (taking apart ) of the valves.
Inner diameter 7 mm
Outer diameter 12 mm
Position in re lation to the side of t he
sp ring placement on the combustion head:
-intake
(A) 12,34 mm
-exhaust (E) 12,34 mm
Înclinarea fa
ã de vert icalã ( b)17
0
CH ARASTERISTICS
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ENGINE E7J-A-2/6010
10 - 12
ENGINE AND LOWER ENGINE UNITS
THE SPRING OF THE VALVES
They are identical for both intake and exhaust.
Length when free (mm) 44,93
Length under load at: -27 daNm 37
- 53,6 daNm -
- 65 daNm 27,6
Length of whirl s - when joined together (mm) 26,01
Whirl diameter (m m) 4
Inner diameter (mm) 21,5
CAM SHAFT
Axial play (mm)0,06 - 0,15
Number of beari ngs 5
Di stribution diagram:
-advance of intake opening -5
0
-delay of intake closing 350
-advance of exhaust opening 410
-delay of e xhaust closing -50
CHARASTERISTICS
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ENGINE E7J-A-2/6010
10 - 13
ENGINE AND LOWER ENGINE UNITS
PISTONS
The bol t i s steady i n the connecting rod
and loose in the piston.
Dir ection of mounting: with the arrow to-
wa rds the flywheel.
There are three classes of association with
the jacket.
Markings on the pistons:
1 - arrow towards the flywheel
2 - class of piston (A-B-C)
3 - line-up marks used by the supplier.
Piston
line-up Piston diameter (m m) Jacket diameter (m m)
marks
A 75,765 - 75,775
* 75,8 - 75,75,81*
B 75,775 - 75,785* 75,81 - 75,82*
C 75,785 - 75,795 75,82 - 75,83
The piston di ameter i s measured for t he
mark:
A = 46 mm. * - the respective values are not included in the classes
CH
ARASTERISTICS
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ENGINE E7J-A-2/6010
10 - 14
ENGINE AND LOWER ENGINE UNITS
BOLTS
Length (mm)60
Outer diameter (mm) 19
Inner diameter (mm) 11
CYLINDE R JACKETS
They are of the type: movable, wet.
The seal fitting is the type: rubbe r ring J.
Inner diameter (mm) 75,8
Jacket height(m m) H2 130
Centring diameter (m m) D 80,6
Extra height without a fi tting (mm)
X 0,02-0,09
Jacket height (m m) H1 91,5
Depth in the cylinder
crank-case K1 91,5+ 0 ,03
+ 0 ,035
+ 0 ,005
- 0 ,015
- 0 ,055
CH ARASTERISTICS
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ENGINE E7J-A-2/6010
10 - 15
ENGINE AND LOWER ENGINE UNITS
RINGS
CONNECTING RODS
The horizontal play of t he connecting rod e nd: from 0.310 to 0.572
C
AUTION!
Do not use numbering punchers because of the risk of creating the be-
ginning of fissures. Use an indelible pen.
CRANKSHAFT
In c a se a re c t ifi c a tion i s m ade, t he
runner course must remain the same a long
at least 140
o out of the bearing and crankpin
circumference. These are as are de fined i n sections A
and B as shown in the adjoined scheme.
Thickness (mm):
-compression ring 1,5
-sealing ring 1,75
- oiling ring (scraper) 3
0
0
Number of beari ngs 5
Bearing diameter (mm) - nominal: 54,795 +/- 0,01
- repair: 54,550 +/- 0,005
Crankpin diameter (mm) - nominal: 43,98
-0,0 2
- repair: 43,73 -0,02
Axial play (mm) - 0,045 - 0,852 cu uzurã
- 0,045 - 0,252 fãrã uzurã
CHARASTERISTICS
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ENGINE E7J-A-2/6010
10 - 16
ENGINE AND LOWER ENGINE UNITS
The amount of oil to be introduced in the
engine is 2.7 liters - without replacing the oi l-
filter - or 2.9 liters, after re placing the filter.
The minimum oil pre ssure at 80
o is:
-in the idle mode 1 bar
-at 4000 rot/min 3 bar
The oil pump belongs to the “gearwheel”
type. Take off the cap and a lso the clapper of
the oil-pump.
To check:
* play A (mm): - min. 0.110
- max. 0.294 * play B (mm):
-min. 0.02
- max. 0.86.
CAUTION!
P rotect the distribution and alternator belt in order to avoid water-
or cleaning substance projection on them.
OIL PUMP
* TO BE ADJUSTED TO TH E GAUGE
CH ARASTERISTICS
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