TM 5-3805-258-24-1
F U E L S Y S T E M
T E S T I N G A N D A D J U S T I N G
F U E L F L O W C H E C K O F T I M I N G
( T Y P I C A L E X A M P L E)
9. Tube. 18. Pan. 19. 5J4634 Hose Assembly.
24. To check for correct timing of the fuel system,
make a comparison of the reading on the dial
indicator (3) with the correct measurement in
the chart. Timing must be set within ± 1° of
correct timing angle.
I
TIMING ANGLE
INDICATOR READING
16°
3.73 mm
.146 in.
17”
4.20 mm
.165 in.
18”
4.70 mm
.185 in.
1
19°
5.23 mm
206Q
“20”
5.79 mm
.228 in.
‘ Correct timing angle.
CHECKING TIMING BY
TIMING PIN METHOD
Tools
Needed:
8S2264 Puller Group.
1B3680 Bolts (2) 3/8-24 NF, 95.3 mm (3.75 in.) long.
4B5271 Washer (2).
8B7580 Step Plate.
L1138 Bolt 3/8-24 NF, 12.7 mm (.5 in.) long.
6V4188 Timing Pin.
6V6175 Adapter.
1. Put No. 1 piston at top center on the com-
pression stroke. Make reference to LOCAT-
I N G T O P C E N T E R C O M P R E S S I ON
POSITION FOR NO. 1 PISTON. Remove
the timing bolt and rotate the crankshaft clock-
wise 30°.
2. Remove fuel line (1) and fuel filter base (2)
and fuel filter from fuel injection pump hous-
ing.
3. Remove cover (3) from the side of the fuel
injection pump housing.
R I G H T S I D E O F E N G I NE
( T Y P I C A L E X A M P L E)
1. Fuel line. 2. Fuel filter base.
T I M I N G P I N C O V E R
3. Cover.
4.
5.
T I M I N G P I N I N S T A L L ED
4. 6V4186 Timing Pin.
Install 6V4186 Timing Pin (4) in the fuel injec-
tion pump housing as shown. Slowly rotate the
crankshaft counterclockwise until timing pin (4)
goes into the groove in the fuel pump camshaft.
Put the timing bolt in the timing hole in the
flywheel housing. If the bolt can be installed
4-16
