Iveco Daily Euro 4. Manual — part 41
ACTUATORS
The injection system comprises three classes of actuators
interlocked with the electronic control unit:
- electro-injectors (see relevant heading);
- regulators (see relevant headings) requiring PWM control
(Pulse Width Modulation):
•
for pressure
•
EGR (see respective chapter)
•
turbocharger with variable geometry (if mounted);
- actuators with continuous ON/OFF signal to:
•
engage electromagnetic coupling for radiator cooling
fan;
•
turn on/off air-conditioner compressor (if mounted);
•
Cruise Control;
•
starter heater control;
•
fuel filter heating;
•
electric supply pump.
PWM (Pulse Width Modulation) controls
A PWM control has an active and an inactive state that
alternate within a constant set length of time. During the active
state the actuator control circuit is closed, which is thus
powered with the control voltage; whereas, during the
inactive state the circuit is open.
The duration of the two states may be varied with the
condition that the sum of the two times is equal to the length
of the modulation delivery.
The duration of the active state determines the duty-cycle,
which is normally expressed as a percentage of the total time.
Therefore, if the duration of the two active and passive states
are the same, the duty-cycle is equal to 50%.
For reasons of diagnostics, the duty-cycle is limited between
1% and 99%; the control resolution is equal to 0.005%
(1/20000 of the time).
The time length has been chosen taking account of the
dynamic actuator response specifications.
Too low a carrier frequency could cause oscillations in the
actuator, while too high a frequency would decrease control
resolution.
The E.G.R. and variable geometry turbocharger (if mounted)
are controlled through a vacuum modulating valve.
All the power controls are made with relays located
in the cab.
NOTE
156
F1A ENGINE
D
AILY
E
URO
4
F1C ENGINE
157
D
AILY
E
URO
F1C engine
Page
MAIN OPERATIONS ON ENGINE MOUNTED ON
VEHICLE
161
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Service procedures to be performed after replacing
high-pressure feeding system and/or exhaust gas
post-treatment system components
162
. . . . . . . . .
POWER UNIT REMOVAL/REFITTING
163
. . . . . . . .
- Removal
163
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
167
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Checks and tests
167
. . . . . . . . . . . . . . . . . . . . . . .
- Power steering system air bleed
167
. . . . . . . . . . . .
REPLACING AIR-CONDITIONING COMPRESSOR
DRIVE BELT
168
. . . . . . . . . . . . . . . . . . . . . . . . . .
- Disassembly
168
. . . . . . . . . . . . . . . . . . . . . . . . . . .
- Assembly
168
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POWER STEERING PUMP-ALTERNATOR BELT
REPLACEMENT
168
. . . . . . . . . . . . . . . . . . . . . . .
- Disassembly
168
. . . . . . . . . . . . . . . . . . . . . . . . . . .
- Assembly
168
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE WATER PUMP
168
. . . . . . . . . . . .
- Removal
168
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
168
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE HIGH-PRESSURE PUMP
169
. . . .
- Removal
169
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
169
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE POWER STEERING PUMP
170
. .
- Removal
170
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
170
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE DRIVE SHAFT SEAL RING AND
THE FRONT COVER GASKET
170
. . . . . . . . . . . .
- Removal
170
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
171
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE VACUUM PUMP OIL PUMP
ASSEMBLY (GPOD)
172
. . . . . . . . . . . . . . . . . . . .
- Removal
172
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
172
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE DRIVE SHAFT REAR SEAL RING
173
- Removal
173
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
173
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING ELECTRO-INJECTORS
174
. . . . . . . . . .
- Removal
174
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
158
F1C ENGINE
D
AILY
E
URO
4
- Refitting
174
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVAL/REFITTING THE CYLINDER HEAD
175
.
- Removal
175
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
177
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EGR HEAT EXCHANGER REMOVAL - REFITTING
179
- Removal
179
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
180
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Checks and tests
180
. . . . . . . . . . . . . . . . . . . . . . .
EGR HEAT EXCHANGER REMOVAL - REFITTING
180
- Removal
180
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Refitting
181
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Checks and tests
181
. . . . . . . . . . . . . . . . . . . . . . .
BURNT GAS EXHAUST SYSTEM
182
. . . . . . . . . . . .
REMOVAL/REFITTING OF EXHAUST PIPE ASSEMBLY
COMPONENTS (SYSTEMS EQUIPPED WITH D.P.F.
CATALYST)
183
. . . . . . . . . . . . . . . . . . . . . . . . . .
- Exhaust silencer removal
183
. . . . . . . . . . . . . . . . .
- D.P.F. catalyst removal
183
. . . . . . . . . . . . . . . . . . .
- Refitting
183
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Replacing D.P.F. catalyst
184
. . . . . . . . . . . . . . . . . .
- Replacing differential sensor (delta-p)
184
. . . . . . . .
ENGINE VIEWS
185
. . . . . . . . . . . . . . . . . . . . . . . . . .
EMISSIONS
188
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE IDENTIFICATION CODE
189
. . . . . . . . . . .
CHARACTERISTIC CURVES
195
. . . . . . . . . . . . . . . .
GENERAL SPECIFICATIONS
197
. . . . . . . . . . . . . . .
ASSEMBLY DATA — CLEARANCES
200
. . . . . . . . . .
TOOLS
205
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXPERIMENTAL TOOLS
211
. . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE
218
. . . . . . . . . . . . . . . . . . .
OVERHAULING ENGINE F1C
221
. . . . . . . . . . . . . .
DISASSEMBLING THE ENGINE AT THE BENCH
221
REPAIRS
232
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER BLOCK
232
. . . . . . . . . . . . . . . . . . . . . . .
- Checks and measurements
232
. . . . . . . . . . . . . . . .
- Checking head mating surface on cylinder block
233
CRANKSHAFT
233
. . . . . . . . . . . . . . . . . . . . . . . . . .
Page
- Measuring main journals and crank pins
233
. . . . . .
- Checking crankshaft
234
. . . . . . . . . . . . . . . . . . . . .
- Replacing timing control gear
236
. . . . . . . . . . . . . .
ENGINE ASSEMBLY
236
. . . . . . . . . . . . . . . . . . . . . .
- Assembling main bearings
236
. . . . . . . . . . . . . . . . .
- Measuring main journal assembly clearance
236
. . .
- Checking crankshaft end float
237
. . . . . . . . . . . . . .
- Assembling rear seal
238
. . . . . . . . . . . . . . . . . . . . .
ENGINE FLYWHEEL
239
. . . . . . . . . . . . . . . . . . . . . .
- Replacing bearing supporting gearbox input shaft
239
CONNECTING ROD — PISTON ASSEMBLY
239
. . .
- Piston
240
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Measuring piston diameter
240
. . . . . . . . . . . . . . . .
- Piston pin
241
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Conditions for correct pin-piston coupling
241
. . . .
- Piston rings
241
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Connecting rods
242
. . . . . . . . . . . . . . . . . . . . . . . .
- Bushing
242
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Checking connecting rods
242
. . . . . . . . . . . . . . . .
- Checking torsion
243
. . . . . . . . . . . . . . . . . . . . . . .
- Checking bending
243
. . . . . . . . . . . . . . . . . . . . . . .
- Assembling connecting rod-piston assembly
243
. . .
- Checking for connecting rod — piston distortion
244
- Assembly piston rings
244
. . . . . . . . . . . . . . . . . . . .
- Assembly connection rod-piston assembly in the
cylinder liner
244
. . . . . . . . . . . . . . . . . . . . . . . . . . .
- Measuring crankpin assembly clearance
244
. . . . . .
- Checking piston protrusion
245
. . . . . . . . . . . . . . .
CYLINDER HEADS
246
. . . . . . . . . . . . . . . . . . . . . . .
- Disassembly
246
. . . . . . . . . . . . . . . . . . . . . . . . . . .
- Disassembly the camshaft
246
. . . . . . . . . . . . . . . .
- Checking cylinder head seal
247
. . . . . . . . . . . . . . .
- Checking cylinder head mating surface
247
. . . . . . .
VALVES
247
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Removing deposits, refacing and checking valves
247
- Checking clearance between valve stem and valve
guide and centring valves
248
. . . . . . . . . . . . . . . . .
VALVE GUIDE
248
. . . . . . . . . . . . . . . . . . . . . . . . . . .
- Replacing valve guide
248
. . . . . . . . . . . . . . . . . . . .
F1C ENGINE
159
D
AILY
E
URO
Page
- Boring valve guides
248
. . . . . . . . . . . . . . . . . . . . . .
VALVE SEATS
249
. . . . . . . . . . . . . . . . . . . . . . . . . . .
- Recutting and replacing valve seats
249
. . . . . . . . . .
VALVE SPRINGS
250
. . . . . . . . . . . . . . . . . . . . . . . . .
ROCKER ARMS — TAPPETS
250
. . . . . . . . . . . . . . . .
- Checks
251
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING CYLINDER HEADS
251
. . . . . . . . . . .
- Overhead
252
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Overhead removal
252
. . . . . . . . . . . . . . . . . . . . . .
TIMING SYSTEM
253
. . . . . . . . . . . . . . . . . . . . . . . . .
- Description
253
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Camshaft
254
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Checks
254
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Checking cam lift and pin alignment
254
. . . . . . . . .
- Assembling overhead
256
. . . . . . . . . . . . . . . . . . . .
AUXILIARY ORGAN CONTROLS
256
. . . . . . . . . . .
- Cynder head refitting
258
. . . . . . . . . . . . . . . . . . . .
TIMING SYSTEM CONTROL
259
. . . . . . . . . . . . . . .
- Replacement of alternator free wheel
264
. . . . . . .
LUBRICATION
271
. . . . . . . . . . . . . . . . . . . . . . . . . .
- General
271
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL PUMP/DEPRESSOR UNIT
273
. . . . . . . . . . . . . .
- Oil pump
273
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Characteristic data
273
. . . . . . . . . . . . . . . . . . . . . .
- Vacuum pump
274
. . . . . . . . . . . . . . . . . . . . . . . . .
- Oil pressure adjusting valve
274
. . . . . . . . . . . . . . .
- Disassembly
274
. . . . . . . . . . . . . . . . . . . . . . . . . . .
- Assembly
275
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Oil filter
275
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Heat exchanger
275
. . . . . . . . . . . . . . . . . . . . . . . .
- Disassembly
275
. . . . . . . . . . . . . . . . . . . . . . . . . . .
- Assembly
275
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Oil vapour recirculation (Blow-by)
277
. . . . . . . . . .
- Operation
277
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING
278
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Description
278
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Operation
278
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Electromagnetic pulley
279
. . . . . . . . . . . . . . . . . . .
Page
- Water pump
279
. . . . . . . . . . . . . . . . . . . . . . . . . .
- Thermostat
279
. . . . . . . . . . . . . . . . . . . . . . . . . . .
TURBOCHARGING
280
. . . . . . . . . . . . . . . . . . . . . .
- Description
280
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Turbocharger type MITSUBISHI TD 4 HL-13T - 6 281
REPAIRS
282
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Pressure relief valve
282
. . . . . . . . . . . . . . . . . . . . .
- Pressure-relief valve check
282
. . . . . . . . . . . . . . . .
- GARRET GT 2260 V variable
geometry turbosupercharger
283
. . . . . . . . . . . . . .
- General
283
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Operation at low engine rpm
283
. . . . . . . . . . . . . .
- Operation at high engine rpm
283
. . . . . . . . . . . . .
- Proportional solenoid valve controlling turbocharger
actuator
284
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Actuator
284
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPAIRS
285
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Checking and adjusting the actuator
285
. . . . . . . . .
EXHAUST GAS RECIRCULATION (EGR) SYSTEM
286
- Operating
286
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Main system components
287
. . . . . . . . . . . . . . . . .
- E.G.R. valve
287
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Modulator solenoid valve
287
. . . . . . . . . . . . . . . . .
- Air flow rate meter (flow meter)
287
. . . . . . . . . . .
- Throttle valve assembly
288
. . . . . . . . . . . . . . . . . .
- Heat exchanger
288
. . . . . . . . . . . . . . . . . . . . . . . .
EXHAUST SYSTEM REMOVAL-REFITTING
289
. . . .
- General
289
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D.P.F. (DIESEL PARTICULATE FILTER) CATALYST
290
- Description
290
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SYSTEM TO REDUCE POLLUTANTS AT EXHAUST
291
- Operation
291
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Forced regeneration
292
. . . . . . . . . . . . . . . . . . . . .
- Refilling engine oil
292
. . . . . . . . . . . . . . . . . . . . . . .
FUEL SUPPLY
293
. . . . . . . . . . . . . . . . . . . . . . . . . . .
HIGH-PRESSURE ELECTRONIC INJECTION SYSTEM
(MS 6.3 - EDC 16)
293
. . . . . . . . . . . . . . . . . . . . .
- General
293
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст