Table 2-2. Generator Set Troubleshooting (Cont)
Malfunction
10.
11.
12.
13.
14.
Engine noisy
(Continued)
Engine overheats
i.
Engine lacks power
Excessive generator
set vibration
Noisy turbo-
charger
Probable cause
a.
b.
c.
d.
a.
b.
c.
d.
e.
—
f.
a.
b.
c.
d.
a.
Flywheel loose.
Deleted
Water pump de-
fective.
Radiator leaks or
is clogged.
Defective shutter
or shutter
linkage.
Defective actuator.
Valves burned or
sticking.
Piston rings worn
or defective.
Defective nozzle
injector assembly.
Defective fuel in-
jection pump.
Improper engine
timing.
Defective valves.
Fuel injector pump
assembly malfunction.
Loose flywheel or
flywheel housing
mounting.
Loose vibration
dampener.
Worn turbocharger
Corrective action
i.
b.
c.
d.
a.
b.
—
c.
d.
—
e.
f.
a.
b.
c.
d.
—
a.
Inspect flywheel attaching bolts
and tighten if required (para
14-69 and 14-70).
Repair or replace water pump
(para 14-57 thru 14-50).
Repair or replace radiator
(para 12-2 thru 12-4).
Repair or replace shutter and
shutter linkage (para 12-2
thru 12-4).
Isolate trouble (para 13-2).
Repair or replace actuator
(para 13-3).
Isolate trouble (para 14-77).
Replace valves (para 14-77
thru 14-79).
Replace piston rings (para
14-81 thru 14-83).
Repair or replace nozzle
inject or assembly (para
14-38 thru 14-41).
Isolate trouble (para 14-43).
Repair or replace and test
fuel injection pump. (para 14-
43 thru 14-45 and 14-48).
Time engine as shown in figure
14.25.
Isolate trouble (para 14-77),
Replace valves (para 14-77
thru 14-79).
Isolate trouble (para 14-43).
Clean, repair or replace
injectors (fig. 14-21).
Tighten flywheel bolts or
housing bolts (para 14-69).
Inspect vibration dampener.
Tighten vibration dampener
(para 14-60, 14-61 and 14-63).
Inspect turbocharger. Repair
or rebuild turbocharger (para
bearings
14-52 thru 14-55).
Change 3 2-13
