TM-9-2320-387-24-1

TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1

DECEMBER 1997

CHANGE 1

TM-9-2320-387-24-1 - Page 251 of 1205

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