crankshaft FIAT MAREA 2000 1.G Workshop Manual

Technical Data Marea-Marea Weekend
Engine: cylinder block/crankcase, crankshaft and associated 2000 range @
OO.io
DESCRIPTION Values in mm
CCO* Li 22.14-22.20
Main journals 0 54.507-54.520
21.72-21.80
63.705-63.718
0< 01 38.700-38.730
Auxiliary shaft bush housings
02 35.036-35.066
80.500-80.510
^ Cylinder liner
_oJI 0
82.000-82.010
B 80.510-80.520 82.010-82.020
80.520-80.530 82.020-82.030
X 9.7 12.5
0
0
80.452-80.462 81.952-81.962
80.459-80.471 81.959-81.971
80.468-80.478 81.968-81.978
Piston
0 0.4
12 Print n° 506.763/23

Marea- Marea Weekend Technical Data
2000 range (§) Engine: cylinder block/crankcase, crankshaft and associated
OO.io
DESCRIPTION DESCRIPTION Values in mm
2 ^L__ Difference in weight
^ between pistons
- Oi p Piston
° Cylinder liner/bon^
/ A
- Oi p Piston
° Cylinder liner/bon^ < B II^I^Hil^^HHiiililHH
- Oi p Piston
° Cylinder liner/bon^
V C
„ \ t Gudgeon pin
Lrfl-J housing
is
20.997-21.001 20.002-20.007
4 S ] 1 0 [ O J mmm^0 20.990-20.995 19.996-20.000
Gudgeon pin 0 BB^O ^> 0.2
4-3 ^ j^"1 Gudgeon pin - Housing
3 Piston ring grooves
^ 1 1.225-1.245 1.220-1.240
3 Piston ring grooves Ft 2 1.210-1.230 1.210-1.230 3 Piston ring grooves
* 3 2.010-2.030 2.010-2.030
> 0 i
, _ 1 1.175-1.190 1.180-1.160
Piston rings
'—i T
« 2 1.175-1.190 1.190-1.170
Piston rings 1.975-1.990 1.990-1.970
- > 0.,4
Copyright by Fiat Auto 13

Technical Data Marea-Marea Weekend
Engine: cylinder block/crankcase, crankshaft and associated 2000 range (§)
OO.io
Piston rings
5-3 ^ p Piston ring
* * grooves
5-1
Piston ring
QP gap
" " in cylinder liner
0.035 0.070
0.020 0.055
0.020 0.055
0.150-0.350
0 200-0.400
0.200-0.450
0.040 0.080
0.020-0.050
0.020-0 060
0.200 0.350
0.250 0.500
0.250 0.500
01 Small end bush or
pin housing 01 23.939-23.972
t
02 Big end bearing
housing 09 48.630-48.642
22.939-22.972
51.354-51.366
14 Print n° 506.763/23

Marea- Marea Weekend Technical Data
2000 range © Engine: cylinder block/crankcase, crankshaft and associated
OO.io
MEASUREMENTS AND FITTINGS
16v mi 20v
Values in mm
01 24.016-24.041
02 21.004-21.009
Small end bush
4-7 Gudgeon pin
Small end bush 0.009-0.019
23.007-23.027
20.006-20.012
0.006 0 020
7-6 Small end bush
Bush housing 0.044-0.102
50.794-50.800
Crank
journals 01 50.787-50.793
8
50.780-50.786
A 45.518-45.523
Crank
pins 02 B 45.510-45.517
45.503-45.509
26.975 - 27.025
Li
0.035-0.088
59.994-60.000
59.988-59.990
59.982-59.980
48.238-48.240
48.232-48.230
48.226-48.230
26.575-26.625
Crankshaft bearings
L <
1.840-1.844
1.844-1.848
1.850-1.854
0
1.836-1.840
1.839-1.843
1.842-1.846
0.127
9-8 OP
Main bearings
Journals 0 019-0 04b 0 025-0.052
Copyright by Fiat Auto XI-00 Supetsedes previous version 15

Technical Data Marea- Marea Weekend
Engine: cylinder block/crankcase, crankshaft and associated 2000 range @
OO.io
MEASUREMENTS AND FITTINGS Values in mm
10 K
*P [O
Big end
pins
1.537-1.541
1.540-1.544
1.544-1.548
1.536-1.540
1.539-1.543
1.542-1.546
0 —BP 0.127
10-8 Crankshaft bearings - Main jour­
nals 0.025-0.050 0.030-0.056
Thust
washers 2.310-2.360 2.342-2.358
0.127
11-8 1£
Crankshaft endfloat 0 055-0 265 0 059 0161
16 XII-9S Supersedes previous vision Publication no. 506.763/24

Marea-Marea Weekend
2000 range ©
Technical Data
Engine: lubrication
OO.io
LUBRICATION - DESCRIPTION Values in mm
Engine lubrication circuit forced circulation, via geared pump
with cartridge oil filter in series
Oil pump: type geared located in the
crankshaft front cover
Pump operated by chain driven by crankshaft
Oil pressure relief valve incorported in crankshaft front cover
Full flow filter cartridge
Low oil pressure transmitter electrical
llOmH between the edge of the gears
^^^•••F and the pump casing
(EQi^^^U between upper edge of
^^^^BBf gears and pump cover
Oi 0 between drive gear
-*r-H- and driven gear
© © J:
Operating pressure at a temperature of 100°C
when idling 1 bar
at 4000 rpm > 4 bar
11.73-12.51
2 J*
Hi
Oil pressure relief valve spring
35
Copyright by Fiat Auto 25

Technical Data Marea-Marea Weekend
Electrical equipment: electronic injection- ignition 2000 range ©)
00.55
INTEGRATED ELECTRONIC
INJECTION/IGNITION SYSTEM r^p) lev
Make I.A.W. M.P.I. WEBER - MARELLI
Firing order 1-3-4-2
INJECTION/IGNITION CONTROL UNIT
Make and versions with manual gearbox I.A.W. 4EF. B3
type versions with automatic transmission I.A.W. 4EF. L1
IGNITION COIL WITH 4 HIGH TENSION INTAKES
Make Champion
Type BAE 920 A
Ohmic resistance of primary winding at 20°C Q 0.580
Ohmic resistance of secondary winding at 20°C Q 9100
SPARK PLUGS
Make and type NGK BKR5EZ
CHAMPION RC10YCC
Thread on engine M14x1.25
Spark gap mm 0.8
TOP DEAD CENTRE AND RPM SENSOR
Make M. Marelli
Type CVM 02
Sensor winding resistance at 20°C Q 575-750
Distance (gap) between sensor and
crankshaft pulley tooth 0.5 + 1.5
ADVANCE ON ENGINE
With engine idling 700±50/min 4°
50 Print n° 506.763/23

Marea- Marea Weekend Technical Data
2000 range © Electrical equipment: electronic injection- ignition
00.55
INTEGRATED ELECTRONIC
INJECTION/IGNITION SYSTEM I^P) 20v
Make Bosch ME31F001
Firing order 1-2-4-5-3
IGNITION COIL (1 PER SPARK PLUG)
Make Bosch
Type 0.221.504.014
Ohmic resistance of primary winding at 20°C Q 0.,4
Ohmic resistance of secondary winding at 20°C Q 8500
TOP DEAD CENTRE AND RPM SENSOR
Make and type Bosch 0.281.002.102
Sensor winding resistance at 20°C Q 774 + 946
Distance (gap) between sensor and
crankshaft pulley tooth 0.8 H- 1.5
DETONATION SENSOR
Make Bosch
Type 0.261.231.095
SPARK PLUGS
Make and type CHAMPION RC8BYC
Thread on engine M 14x 1.25
Spark gap mm 0.8
Copyright by Fiat Auto 51

Engine
Fuel feed system
10.
4F012XJ03
Marea- Matea Weekend 9 ™
2000 range (Q)
RPM SENSOR
The rpm sensor is fitted to the engine crank-
case and faces the phonic wheel on the
crankshaft.
The sensor is inductive type, i.e. it works by
varying a magnetic field generated when the
phonic wheel teeth (60-2 teeth) pass in front
of the sensor element.
The injection control unit uses the rpm sensor
signal to determine crankshaft speed and an­
gular position.
Operation
The changeover from full to empty due to the
presence or absence of teeth sets up a mag­
netic flux change sufficient to generate an in­
duced alternating voltage proportional to the
number of teeth on the phonic wheel.
The peak sensor output voltage value, all
things being equal, depends on the distance
between the sensor and the tooth (gap).
1. Steel bush
2. Permanent magnet
3. Sensor case
4. Winding
5. Core
6. Phonic wheel
7. Electrical connection
To obtain the correct signal, the specified gap
between phonic wheel and sensor should be
between 0.8 and 1.5 mm
This distance is not adjustable. When the gap
is not as specified, check the condition of the
sensor and phonic wheel.
Winding resistance
860 Ohm ±110% at 20 °C
1. Maximum magnetic flux
2. Minimum magnetic flux
3. Induced alternate voltage
12 Publication no, 506.763/24