Detroit Diesel MBE 900 Technician Manual page 18

COMPONENTS PRELIMINARY
The MBE engines for NAFTA On-Highway 2004 applications use a liquid-cooled EGR system.
Exhaust is routed from the exhaust manifold, through the EGR shutoff valve (MBE 4000 only), the
EGR cooler, the EGR control valve, the reed valves (all except the MBE 906), and the EGR mixer
in the intake manifold where they are mixed with the charge air. To view the arrangement of these
components, see Figure 2-1 for the MBE 4000 engine and Figure 2-2 for the MBE 900 engine.
Figure 2-1 Schematic of MBE 4000 EGR System
2-2
All information subject to change without notice. (Rev. 5/05)
7SE940 0505 Copyright © 2005 DETROIT DIESEL CORPORATION