Detroit Diesel MBE4000 User manual

MBE 4000 SERVICE MANUAL
2.A ADDITIONAL INFORMATION
Description Page
SPECIFICATIONS ............................................................................................. 2-42
Fuel Injectors .................................................................................................. 2-42
Engine Brake Harness ................................................................................... 2-43
Fuel and Fuel Control ..................................................................................... 2-44
All information subject to change without notice.
6SE412 0206 Copyright © 2003 DETROIT DIESEL CORPORATION From Bulletin 1-MBE4-03 2-41

SPECIFICATIONS
This section contains the specifications for servicing the engine.
Fuel Injectors
The fuel injection system torque values are listed in Table 2-2. The torque values for the injector
lines are listed in Table 2-3.
Fastener Type N·m (lb·ft)
Fuel Filter Cap Nut 25 (18)
Fuel Return Line Fittings (at fuel gallery inlet) 50 (37)
Hollow-Core Banjo Bolts 50 (37)
Pressure Limiting Valve (at fuel gallery outlet) 50 (37)
Protective Sleeve 45 (33)
Tensioning Arm Retaining Bolt 50 (37)
Unit Pump Mounting Bolts 65 (48)
Table 2-2 Fuel Injection System Torque Values
N·m (lb·ft)Fastener Type
Using a 12-in. torque
wrench Using a 24-in. torque wrench Required Torque on Fastener
Injector Line Nuts 27 (20) 25 (18) 30 (22)
Transfer Tube Thrust Bolt 40 (30) 36 (27) 45 (33)
Table 2-3 Injector Lines Torque Values
All information subject to change without notice.
2-42 From Bulletin 1-MBE4-03 6SE412 0206 Copyright © 2003 DETROIT DIESEL CORPORATION

MBE 4000 SERVICE MANUAL
Engine Brake Harness
The former 8-pin Engine Harness Connector is identified with part number A460 150 00 33, and
it is used in the engines that have one solenoid air valve for the engine brakes. Beginning with the
engine serial number 739080, these current engines will have an 8-pin Engine Harness Connector
with part number A460 150 01 33. The changes in the harness connections between the former
and current 8-pin harness connector are Listed in Table 2-3a and listed in Table 2-3b.
Description 8-Pin Engine Harness Connector PLD-MR 55-Pin Connector
Fan Control 1, switch to Bat- (PV3) A41
Fan Control 2, switch to Bat- (PV4) B43
Output Ground (PV) C11
Fan and Wastegate/E-Flap Voltage
Supply (PV1, 3, 4) D12
Exhaust Flap/Wastegate Control,
switch to Bat- (PV1) E51
Fan and Wastegate/E-Flap Voltage
Supply (PV1, 3, 4) F12
Turbo Brake Control, switch to Bat-
(PV6) G40
Turbo Brake Voltage Supply (PV6) H42
Table 2-3a Former Harness Connector A460 150 00 33
Description 8-Pin Engine Harness Connector PLD-MR 55-Pin Connector
Fan Control #1, switch to Bat- (PV3) A41
Fan Control #2, switch to Bat- (PV4) B43
Compression Brake Control, switch
to Bat- (PV2) C50
Fan and Wastegate/E-Flap Voltage
Supply (PV1, 3, 4) D12
Exhaust Flap/Wastegate Control,
switch to Bat- (PV1) E51
Compression Brake Voltage Supply
(PV2) F52
Turbo Brake Control, switch to Bat-
(PV6) G40
Turbo Brake Voltage Supply (PV6) H42
Table 2-3b Current Harness Connector A460 150 01 33
All information subject to change without notice.
6SE412 0206 Copyright © 2003 DETROIT DIESEL CORPORATION From Bulletin 1-MBE4-03 2-43

Fuel and Fuel Control
The fuel control torque values are listed in Table 2-4. Listed in Table 2-5 are the fuel system
torque values. See Figure 2-23 for a harness drawing of the wiring from the PLD (pump and
nozzle) control unit. For a detailed (partial) harness drawing showing the interface between the
PLD and the vehicle control unit (VCU) through the electronic engine frontwall connector,
see Figure 2-24. For a detailed (partial) harness drawing showing the PLD wiring to the
proportioning valves and the oil system sensors, see Figure 2-25. For a detailed (partial) harness
drawing showing the PLD wiring to the other system sensors, including charge air, coolant, fuel,
crank angle position, and TDC (top dead center), see Figure 2-26.
Fastener Type N·m (lb·ft)
Fuel Heat Exchanger Mounting Bolts 8(6)
Fuel Lines 50 (37)
PLD Control Unit Mounting Bolts 15 (11)
Table 2-4 Fuel Control Torque Values
Fastener Torque Value, mm (in.)
Fuel Filter Cap 25 (18)
Fuel Line Banjo Bolts 50 (37)
Fuel Line Pipe Fittings 50 (37)
High-Pressure Fuel Lines 30 (22)
Fuel/Water Separator Mounting Nuts 50 (37)
Fuel Filter Housing Mounting Bolts 25 (18)
Fuel Pump Mounting Bolts 25 (18)
Table 2-5 Fuel System Torque Values
All information subject to change without notice.
2-44 From Bulletin 1-MBE4-03 6SE412 0206 Copyright © 2003 DETROIT DIESEL CORPORATION

MBE 4000 SERVICE MANUAL
Figure 2-23 PLD Control Unit Wiring
All information subject to change without notice.
6SE412 0206 Copyright © 2003 DETROIT DIESEL CORPORATION From Bulletin 1-MBE4-03 2-45

Figure 2-24 PLD Control Unit Wiring, VCU Interface
All information subject to change without notice.
2-46 From Bulletin 1-MBE4-03 6SE412 0206 Copyright © 2003 DETROIT DIESEL CORPORATION

MBE 4000 SERVICE MANUAL
Figure 2-25 PLD Control Unit Wiring, Proportioning Valves and Oil System
Sensors
All information subject to change without notice.
6SE412 0206 Copyright © 2003 DETROIT DIESEL CORPORATION From Bulletin 1-MBE4-03 2-47

Figure 2-26 PLD Control Unit Wiring, Miscellaneous Sensors
All information subject to change without notice.
2-48 From Bulletin 1-MBE4-03 6SE412 0206 Copyright © 2003 DETROIT DIESEL CORPORATION