REFERENCE INFORMATION
NOTE
If the exhaust is not colorless, it must
be either white, blue, or black. If exhaust
color is:
WHITE . . . . . .._._
Go to fuel system, para. 2-28.
Could be injector timing, DS level fault.
BLUE..... . . . . . ..Blue smoke is a sign of oil entering the combustion chambers.
It usually
enters past the piston rings or intake valve stem seals. This is an internal
engine problem that can’t be handled at this level of maintenance.
You
may want to run the engine running tests, para. 2-24, before you notify
DS maintenance (chapter 14).
BLACK. . . . . . . . . Air Intake/exhaust.
para. 2-29.
TM 9-2320-387-24-l
ENGINE LUBRICATION
2-195
