TM-9-2815-224-34-P

ENGINE, DIESEL:8-CYLINDER TURBOCHARGED, DETROIT DIESEL CORPORATION MODEL 8V92TA

DIRECT SUPPORT AND GENERAL SUPPORT MAINTENACE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

JANUARY 1988

TM-9-2815-224-34-P - Page 308 of 554

TM 9-2815-224-34&P

Fuel Injector Maintenance Instructions (Cont)

12-4. FUEL INJECTOR TESTING (CONT).

(24)

(25)

(26)

(27)

(28)

(29)

(30)

(31)

(32)

Push valve lever (28) down.

Pull pump lever (2) and watch flow of test oil

passing through discharge line (11). When no

air bubbles pass through line (11 ), do next

step.

Push injector control rack (29) in to full fuel

position.

Position pump lever (2) so it points straight

up.

Move rocker arm engagement lever (27) to

forward position.

Pull pump lever (2) forward 40 to 80 times a

minute with steady strokes and read

maximum reference value from right hand

gage (30).

Injector (17) must be repaired (refer to

para 12-3) if maximum reference value is less

than 138 or more than 162.

Pull pump lever (2) forward several times

with steady strokes and observe spray pattern

produced by injector (17).

Injector must be repaired (refer to para 12-3)

if spray pattern is uneven or if test oil does

not break up into a fine mist.

12-26