TM 9-6115-624-BD
CHAPTER 4
ENGINE
BDAR FIXES SHALL BE USED ONLY IN COMBAT OR FOR TRAINING
AT THE DISCRETION OF THE COMMANDER
(AUTHORIZED TRAINING FIXES ARE LISTED IN APPENDIX E)
IN EITHER CASE DAMAGES SHALL BE REPAIRED BY STANDARD
PROCEDURES AS SOON AS PRACTICABLE
Section I. INTRODUCTION
4-1.
Scope. Generator engines can be diesel, gasoline, or even turbine powered. Repair procedures on a diesel
engine therefore might not apply to a gasoline engine and vice versa. Turbine engines are usually repaired at depot
level since specialized training and tools are required. Engine damage can be detected by several different methods.
a. Abnormal oil pressure or temperature readings or warning lights.
b. Abnormal noises.
c.
Abnormal amounts or coloration of exhaust smoke.
d. Sudden loss of power or excessive fuel consumption.
This chapter gives various expedient fixes which can restore the generator's output in event of engine system failure.
4-2.
Assessment Procedure. Engine assessment procedures are structured using the logic process shown in figure
4-1.
WARNING
Engine and associated systems may be very hot. Use caution when performing
all BDAR action to avoid being burned.
Use personal protective equipment such as eye goggles, gloves, and hearing
protection when performing BDAR actions. Serious injury can result when such
equipment is not used.
4-3.
Repair Procedure Index.
Damage
Paragraph
Engine interchangeability ....................................................................................................................
Engine Air Intake for Normally Aspirated Engines ...............................................................................
Engine Air Intake for Turbocharged Engines .......................................................................................
Air Cleaner, Clogged ..........................................................................................................................
Air Cleaner, Damaged/Leaking ...........................................................................................................
Intake Manifold or Other Castings or Containers, Damaged ................................................................
Exhaust Manifold, Damaged ...............................................................................................................
Lubrication System Pump, Failure ......................................................................................................
Oil Level Low ......................................................................................................................................
4-1
