TEST, ADJUSTMENT, AND PREPARATION FOR STORAGE

Table VII. Run-in Schedule (Short)

Note. The short run-in schedule is for rebuilt engines with original bearings and piston rings. In-

stall engine in combination with a dynamometer or other variable loading device and operate in ac-

cordance with the following schedule.

Gross brake

Duration

horsepower

Engine speed

(minutes)

(bare engine)

Fuel

650-700

Diesel

1000

Diesel

1200

Shut down and retorque all cylinder head nuts to 130 pound feet.

650-700

-0

Diesel

1000

Diesel

1200

Diesel

1600

Diesel

2000

Diesel

2400

110

Diesel

2600

Diesel

140

2600

(Adjust full throttle

140-145

Diesel

position and set

governor)

Power check (full

1400

92 minimum

Diesel

650-700

Diesel

DIESEL FUEL

------

COMPRESSION IGNITION

FUEL

- -- -- GASOLINE

290. TEST, ADJUSTMENT, AND PREPARA-

TION FOR STORAGE

a. Oil Pressure. Oil pressure may be mea-

sured by removing the oil pressure sending

unit (figs. 489 and 480) from the main oil

gallery and installing an oil pressure gage.

When oil pressure cannot be maintained be-

tween 50 to 60 psi replace oil pressure regula-

tor valve spring (fig. 101). If spring replacement

does not bring oil pressure to specified limits,

check oil pressure regulator valve (par. 87)

against limits specified in repair and rebuild

standards (par. 293). Replace faulty plunger,

if necessary.

b-. Idle Speed. Must for smooth idle at

ENGINE SPEED - RPM

650 to 00 rpm by turning the idle adjusting

ORD El 8424

screw on the fuel injection pump (fig. 56).

Turn the screw clockwise to increase idle

FIGURE 513. TYPICAL ENGINE PERFORM-

speed and counterclockwise to decrease idle

ANCE CURVE.

speed.

330