TM-9-2815-224-34-P
ENGINE, DIESEL:8-CYLINDER TURBOCHARGED, DETROIT DIESEL CORPORATION MODEL 8V92TA
DIRECT SUPPORT AND GENERAL SUPPORT MAINTENACE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JANUARY 1988
TM-9-2815-224-34-P - Page 39 of 554
TM 9-2815-224-34&P
Section V. TROUBLESHOOTING
2-9. TROUBLESHOOTING INTRODUCTION
This section contains step by step procedures for identifying,
locating, isolating, and repairing equipment malfunctions.
2-10. TROUBLESHOOTING INSTRUCTIONS
The troubleshooting system symptom index Table 2-2 lists
common malfunctions which could be found during maintenance of the M977 series engine or its components.
Each malfunction is followed by a list of tests or inspections which will help to determine corrective action to be
taken (Table 2-3).
a.
This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective
actions. If a malfunction is not listed or is not corrected by listed corrective actions, notify your
supervisor.
b.
Table 2-3 lists malfunctions which can occur during operation or maintenance of the M977 series
engine or its components. Perform tests, inspections, and corrective actions in the order listed.
Operation of a deadline vehicle without a preliminary examination can cause further damage to a
disabled component and possible injury to personnel. By careful inspection and troubleshooting, such
damage and injury can be avoided. In addition, cause of faulty operation of a vehicle or component can
often be determined without extensive disassembly.
Table 2-2. System Symptom Index
Troubleshooting
Procedure
Page
1.
Fails to crank.
....................................
2.
Cranks - will not start
..............................
3.
Hard to start/stalls at idle speed/does not run smoothly . . . . . . . . . . . . . . . . . . . . . . . . .
4.
Fails to develop full power
............................
5.
Overheats
.........................................
6.
Low oil pressure
...................................
7.
High oil consumption.
.............................
8.
High crankcase pressure
...........................
ENGINE
2-8
2-9
2-11
2-12
2-12
2-13
2-14
2-15
Change 2
2-7
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