TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
Table 1. Engine Troubleshooting - Continued.
TEST OR INSPECTION
2. Check for overfilling of crankcase.
1. If oil level reads below the full mark,
Excessive Engine Oil
Consumption - Continued.
(a) Park machine on known level
surface (TM 5-3805-291-10).
resulting in overfilling engine to reach
(b) Drain engine oil and install new oil
the full mark. Re-mark the dipstick full
mark at the actual oil level.
amount of oil (TM 5-3805-291-
2. If problem still exists, go to Test 3.
10). Run engine for 10 minutes.
Shut off engine (TM 5-3805-291-
(c) Wait at least 30 minutes to allow
oil to drain into oil pan.
(d) Check oil level on engine dipstick
(TM 5-3805-291-10). Oil level
should be at full mark or full range.
1. If necessary, replace turbocharger,
3. Remove air inlet, outlet, and exhaust
tighten bolts, or unlock restricted drain.
tubes and inspect turbocharger, drain,
2. If problem still exists, go to Test 4.
wastegate, and mounting bolts for
N OT E
Do not add oil until oil level reaches add mark or level gage.
4. Track oil consumption over a period of
If oil consumption is excessive, it can be
200 hours to confirm that oil
caused by leaking turbocharger seal,
consumption is excessive. Use oil
allowing turbo boost to leak into turbo oil
consumption daily log located at the
end of this work package. This does not
or core plug leaking manifold pressure
include the amount of oil added during
an oil change. Oil consumption is
damaged piston rings or scored cylinders.
considered excessive if the average oil
Repair as needed.
consumed is more than 20 quarts per
200 hours operation.