Fuel Injection Pump Adjustments

TM 10-3930-638-24&P

3-5. ENGINE MAINTENANCE (cont)

a. Engine Tune-up (cont).

(3) Fuel Injection Pump Adjustments.

This task covers adjustment of fuel injection pump timing, engine idle speed, and no-load governed speed.

INITIAL SETUP

TOOLS

EQUIPMENT CONDITION

Automotive Mechanic's

Paragraph

Condition Description

Vehicle parked on level surface, engine off,

Tool Kit

and parking brake applied.

Left and right side panels removed.

MATERIALS/PARTS

Tachometer drive cover removed.

Wire seal

Timing window gasket

ACTION

REMARKS

ITEM

STEP

LOCATION

INJECTION PUMP -- TIMING ADJUSTMENT

Engage flywheel ring gear teeth with blade

Rotate

a. Engine flywheel

Engine compart-

of screwdriver as shown. Rotate engine

ment

counterclockwise until pointer in timing

hole is past 8 BTDC mark on flywheel;

then rotate engine clockwise until

pointer is in line with 8 BTDC mark

on flywheel

b. Timing window screws, Remove

cover and gasket

3-32