Engine Lubrication System; Lubrication System Components And Oil Flow - Navistar International DT 466 Diagnostic/Troubleshooting Manual

Engine Lubrication System

Lubrication System Components and Oil Flow

Figure 31 Lubrication system
1. Unfiltered oil
2. Cooled unfiltered oil
3. Filtered oil
4. Secondary filtration filter
(optional)
5. Gerotor oil pump
6. Front cover
7. Reservoir for high-pressure oil
pump
8. Pick-up tube
9. Unfiltered oil gallery
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
1 ENGINE SYSTEMS
10. Variable Geometry Turbocharger
(VGT)
11. Oil cooler
12. Oil filter
13. Oil cooler / filter header
assembly
14. Oil pressure regulator relief
valve
15. Regulator relief valve drain to
crankcase
16. Oil pan assembly
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
17. Crankshaft
18. Piston cooling tube (6)
19. Main filtered oil gallery
20. Camshaft
21. Crankcase
22. Vertical gallery
23. Cylinder head
24. Valve cover
25. Rocker arm assembly
26. Air compressor (optional)
37