5 HARD START AND NO START DIAGNOSTICS 193
Figure 238 High-pressure oil rail with engine brake (leak locations)
1. Endplug(2)
2. ICP sensor
3. Attenuator assembly (2)
4. Brake shut-off valve
5. Machined surface (oil i nlet to
cylinder head)
6. Inlet adapter (6)
7. BCP sen sor
8. Brake pressure relief valve
Figure 239 Injector o
il in let adapter in
high-pressure oil ra
il
1. Backup ring
2. Seal
3. To injectors
4. O-ring
Figure 240 O-ring for high-pressure oil manifold
1. O-ring
2. Oil inlet fitting
10. Open inline shut-off valve and listen for leaks.
Check the following components:
• Injector oil inlet adapter O-rings (Figure 239)
• Injector oil inlet adapter (Figure 239)
• ICP sensor (Figure 238)
• O-ring for high-pressure oil rail (Figure 240)
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
©August 2008 Navistar, Inc.
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