This document provides technical specifications and descriptions of components for a Tier 3 engine. It includes torque specifications for fasteners, descriptions of the engine block, crankshaft, connecting rods, pistons, and camshaft. Diagrams are included to illustrate the components. The document appears to be from the manufacturer and intended for use in repair manuals.
8. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-25
667TA ENGINES
BS06K020 Figura 3000-12
Turbocharger1.
Automatic tension belt2.
Alternator3.
Fix guide pulley4.
Water pump5.
Engine flywheel counterweight6.
Oil sump7.
Electronic Control Unit - E.C.U.8.
Fuel filter9.
High pressure pump10.
Common Rail11.
9. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-26
DESCRIPTION OF ENGINE MAIN COMPONENTS
Engine Block
The cylinder block is a cast iron structure with cylinders bores (1), main journals (5) e moun-tings for camshaft bearing
(3) and valves, water-oil exchanger heater (7), water pump (2) and oil pump (4). The block also has coolant and oil
passages. The lubrication circuit provides oil for the moving parts. The stiffening plate (6) is applied in the engine
block botton to increase the resistance to mechanical fatigue.
Cylinder bore1.
Mounting for water pump2.
Mounting for Camshaft bearing3.
Mounting for oil pump4.
Main journals5.
Stiffening plate6.
Mounting for water-oil exchange heater7.
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2002-27
Crankshaft
BS06K022 Figura 3000-14
Oil pump gear1.
Crankshaft2.
Timing gear3.
Mounting for engine flywheel4.
The crankshaft is steel made and rests in seven journals tempered by induction.
There is a series of drilled passages for the lubricating oil.
The follow items are pressed in front: oil pump gear (1), position sensor sprocket, counterweight,
and the auxiliary devices pulley.
The follow items are pressed in rear: timing gear (3), and the mounting for engine flywheel (4).
The main journals bearings are steel made and coated by a anti-friction alloy. One of them is equipped with shoulders
to limit the cranckshaft axial clearance.
The timing gear (3) and the engine flywheel mounting (4) are forced positioned in the cranckshaft
rear and can not be replaced.
CRANCKSHAFT OIL SEALS
The front and rear seals are box type with radial sealing. To remove them use the special tools 380000665 e
380000663. For installation se special tools 380000666 e 380000664.
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2002-28
Connecting Rod
BS06K023 Figura 3000-15
Connecting rods are forged steel. The big ends are made with an oblique angle. Caps and rods are separeted by a
fracture splitting method that produces a strong and unique fit cap.
The connecting rod big end bearings are coated by anti-friction alloy.
They are marked two ways:
Body-cap: have a number that indicates match and cylinder which they are assembled.•
Rod shank: marked with a letter indicating weight class.•
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2002-29
A coroa na cabeça do pistão apresenta uma câmara de combustão de alta turbulência. A parte inferior da coroa
na cabeça do pistão é arrefecida pelo óleo do motor distribuído por um bico pulverizador instalado no bloco do
motor.
Existem três canaletas para anéis do pistão com diferentes funções e diferente geometria:
The piston crown features a high turbulence combustion chamber. The piston crown is cooled from underneath by
a spray nozzle installed in the cranckcase.
There is three groves for piston rings with different functions and different geometry:
1st pinston ring with trapezoidal section (keystone) and coated by chome ceramic.•
2ndt piston ring with torsional conical rectangular section.•
3rd piston ring with double oil scraper and inner spring.•
In the piston crown are marked the reference data:
Number of spare part and number of design modification.1.
Mark (looking from the frontal engine block) indicating the direction of assembly of the piston in the cylinder2.
Date of manufacture.3.
Mark indicating the first test of the recess insert.4.
Piston
BS06K024 Figura 3000-16
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2002-30
Camshaft
BS06K025 Figura 3000-17
BS06K026 Figura 3000-18
Intake valve lobeA.
Exhaust valve lobeB.
Lobe EGRC.
Camshaft is supported by seven journals in the engine block.
The front and rear journals seats are equipped with steel bushings coated with anti-friction material forced
positioned.
There is two lobes for each cylinder
Intake lobeA.
Exhaust lobeB.
Camshaft is directly controlled by rear gears moved by the crankshaft.
Exhaust Gas Recirculation - EGR
The exhaust gas can return partially to the cylinder and reduce the maximum temperature res-ponsible caused by
the nitrogen oxide (NOx) generation.
The ECR reduces the combustion temperature, decreasing the oxigen concentration in the combustion chamber,
creating a efficient system to control the NOx emissions. The EGR lobe is not equipped with any electronic control,
and the system is always enabled. Its configuration do not requires aditional elements such as retaining valve, pipes
or heat dissipation.
There is an aditional lobe (C). When a cylinder is intaking, this lobe allow a brief opening of the exhaust valve. The
recirculation occurs in that cylinder due the great exhaust pressure compared to the intake gases.
14. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-31
Valve Control
BS06K027 Figura 3000-19
Rocker1.
Valve clearance adjusting screw2.
Pushrod3.
Valve cone4.
Valve seat5.
Spring6.
Camshaft7.
Tappet8.
Bridge9.
Rocker axle10.
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2002-32
Cylinder Head of Engines – 667TA/EBF – 667TA/EBD – 667TA/EED
The cast iron cylinder head is machined to allow mounting the following parts:
Valve seats (4).•
Injectors (2).•
Thermostat (3).•
It is designed also to accommodate the following components:
Exhaust manifold (1).•
Intake manifold (6) with intake air heater mounting (5).•
Exhaust manifold1.
Injector2.
Thermostat3.
Valve seat4.
Intake air heater5.
Intake manifold6.
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2002-33
Cylinder Head of Engines – 667TA/EEG – 667TA/EEC
Exhaust manifold1.
Injector2.
Thermostat3.
Valve seat4.
Injectors electrical cable support5.
Intake air heater6.
Intake manifold7.
The cast iron cylinder head is machined to allow mounting the following parts:
Valve seats (4)•
Injectors (2)•
Thermostat (3)•
It is designed also to accommodate the following components:
Exhaust manifold (1)•
Intake manifold (7) with intake air heater mounting (6)•
17. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-34
Cylinder Head of Engines – 667TA/EDJ
Exhaust manifold1.
Injector2.
Thermostat3.
Valve seat4.
Injectors with electrical cable support5.
Intake air heater6.
Intake manifold7.
The cast iron cylinder head is machined to allow mounting the following parts:
Valve seats (4)•
Injectors (2)•
Thermostat (3)•
It is designed also to accommodate the following components:
Exhaust manifold (1)•
Intake manifold (7) with intake air heater mounting (6)•
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2002-35
Valves and Valves Seats
The valve seats has the following angles:
Exhaust valve - 45°
Intake valve - 60°
NOTE: The exhaust valves (2) has a identification
cavity in its center.
Intake valve1.
Exhaust valve2.
Intake side3.
4. Exhaust side4.
Oil seals (1) installed in the valves steams.
The cylinder head do not has guides inserts. The
guides are machined directly in cylinder head.
7.042 A 7.062mm (0.277 A 0.278 IN)1.
Intake valves2.
Exhaust valves3.
Valves Bridge
NOTE: During the cylinder head installation, the rocker
bridge direction must be positioned with the marks (1)
turned to the exhaust ma-nifold.
Bridge1.
Pushrods2.
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2002-36
Cylinder Head Machining
The cylinder head nominal thickness (A) is 105 ±
0.25mm (4.134 ± 0.0098 in) and the maximum material
remotion (B) MUST BE less than 0.13mm (0.0051
in).
Engine Flywheel
The engine flywheel (1) is not synchronized to the
crankshaft and do not have any marks, slots or
reference holes for sensors or sychronism. The fixation
screws holes equidistance (2) allows the installation
in any position.
FLYWHEEL OF ENGINES: 667TA/EEG - 667TA/EEC
FLYWHEEL OF ENGINES: 667TA/EED - 667TA/EBD
FLYWHEEL OF ENGINES: 667TA/EDJFLYWHEEL OF ENGINES: 667TA/EBF - 667TAEED
20. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-37
AUXILIARY DEVICES DRIVING
A Poly-V belt (3) transmits the crankshaft (5) rotation to the water pump (4) and alternator (2). The belt tensioning
is controlled by a automatic belt tensor (1).
Automatic belt tensioning1.
Alternator2.
Poli-V belt3.
Water pump4.
Crankshaft5.
21. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-38
ENGINE LUBRICATION
The pressurized lubrication is held by the following components: water pump (5), located in the engine block front
side, drived by the crankshaft gear; water and oil coller (4) located in the engine block, under the oil filter support;
deviation valve (2) to eliminate the oil filter obstruction and oil filter cartridge type (3).
Oil sump: 667TAEDBA.
Oil sump: 667TAEEG-667TAEEC-667TAEBT-667TAB.
EED-667TAEDJ
Pressurized oil pathC.
Oil returning by gravity pathD.
Turbocharger oil pressure control valve1.
Deviation valve2.
Oil filter cartridge type3.
Oil and water cooler4.
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2002-39
Oil Coller
Oil Pressure Control Valve
Deviation Valve
Heat dissipation housing1.
Inner gasket2.
Water and oil cooler3.
Gasket between cooler and engine block4.
Oil to filter return*5.
Oil to filter inlet*6.
Oil filter7.
* Only engines 667TA/EEG - 667TA/EEC
Oil temperature calibration of 100°C (212°F).
Minimum pressure 1.2 bar (17.4 psi).--
Maximum pressure 3.8 bar (55.1 psi).--
66 mm (2.589 in)1.
41.25 mm (1.624 in)2.
136.9 ± 10.5 N (30.8 ± 2.36 lbf)3.
“Blow-by” (oil sump vapours) máx:
20cm3/min (.68oz/min) with 0.83 bar (12 psi) pressure
and 26.7° C (80° F) of oil temperature
Flow directionA.
23. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-40
Oil Pump
Cranckshaft with oil pump driving gear.
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25. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-41
Oil Sump of Engines –
Oil Sump of Engines – 667TA/EED – 667TA/EBD
OIL SUMP GASKET INSTALLATION
OIL SUMP GASKET END VIEW
The oil sump (1) is set to the engine block by a flexible
mode through a aluminum plate and a rubber gasket
(2).
The “C” section rubber gasket (2) , mounted in the
oil sump fixation contour, increase the oil sealing and
reduce the noise level.
CAST IRON OIL SUMP
The cast iron oil sump is fixed in the engine block by
screws and washers, and a thin gasket.
667TA/EEG – 667TA/EEC – 667TA/EBF – 667TA/EED – 667TA/EDJ
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2002-42
Blow-By
The rocker cover has a blow-by pre-separator (1), designed to increase the oil steam exit velocity while it is partially
condensed. The condensed oil returns to oil sump and the residual steam are collected and directed through blow-
by filter (3).
In the blow-by filter (3), one portion of steam condenses parttialy and return to oil sump through line (4), and the rest
is directed to engine intake through line (2).
Pre-separator1.
Intake recirculation2.
Blow-by filter3.
Engine return4.
Condensed oilA.
Oil steamB.
27. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-43
ENGINE COOLER
The engine cooling system is closed circuit type, forced circulation and incorporate the folowing components:
Oil cooler used to cool the lubricating oil. See oil cooler in page 38.•
Centrifuge water pump located in he engine block frontal side.•
Thermostat to control the engine coolant circulation.•
Oil radiator1.
Water pump2.
Thermostat3.
Water flowing outside thermostatA.
Water recirculating in engineB.
Water flowing inside water pumpC.
28. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-44
Water Pump
WATER PUMP
WATER PUMP END VIEW
The water pump is located in a engine block fronta side
cavity, and is driven by the Poly-V belt. It is sealed in
the engine block by a o’ring.
The engine temperature is controlled by a
thermostat.
THERMOSTAT
Thermostat opening:
Engines 667TA/EEG, EEC, EBF, EED, EBD= 79 a 83°
C (174 a 181° F).
Engines 667TA/EDJ= 83 a 98° C (181 a 208° F).
The opening starts at 96° C (204° F) ≥ 7.5mmA.
(.30 inches).
29. 6-46557 ENG Issued 07-11 Printed in Brazil
2002-45
COMMON RAIL – HIGH PRESSURE ELECTRONIC INJECTION SYSTEM
Extremely high pressures are required to reduce CERTAIN emissions.
The common rail system makes 1450 to 1600 bar (21030 to 23206 psi) fuel injection pressure possible, while the
precision of the injection obtained by the electronic controle EDC7UC31 optimize the engine operation, limiting its
emissions and the fuel consumption.
For powerfull engines more than 152 kW(203 hp), the CRIN2 injectors has DLLA nozzles that works with pressures
up to 1600 bar (23206 psi), while less powerfull engines (< 152 kW (203 hp)) are equipped with DSLA nozzles,
working with pressures up to 1450 bar (21030 psi).
Injectors electric cable1.
Electronic injector2.
Coolant temperature sensor3.
Engine oil and pressure sensor4.
Cranckshaft sensor5.
Electronic Control Unit - EDC7UC316.
Pressure regulator7.
Fuel heater and temperature sensor8.
Camshaft sensor9.
Fuel pressure sensor10.
Turbocharger supply and pressure sensor11.
