Turn the crankshaft, slow, in a counterclockwise
direction. Do this until the flow of fuel from the
end of tube assembly (9) is 12 to 18 drops per
Stop rotation of the crankshaft when the flow of
fuel is 12 to 18 drops per minute. Take a
reading of the measurement on dial indicator
To check for correct timing of the fuel system,
make a comparison of the reading on dial
indicator (3) with the correct measurement in
the chart. Timing must be set within ± 1 of
correct timing angle.
If the timing of the fuel system is
different than the correct timing
dimension given in the chart, see the
TIMING PIN METHOD.
Checking Automatic Timing Advance Unit By
Timing Light Method
1P3500 Injection Timing Group or
2P8280 Injection Timing Group
Either group can be used to check the automatic timing
1P3500 INJECTION TIMING GROUP
When either of these injection timing
groups is used, the cap from the
9N3979 Nozzle Assembly must be
removed. This will let fuel bleed
from the cap end of the nozzle, and
will maintain line pressure in the
Do not use the engine in service with
the cap removed from the nozzle.
The fuel will drain into the crankcase
and the result will be thin oil (oil
dilution). Also a new 1H1023 Seal
must be used when the cap is
5P4203 Field Service Tool Group
The procedure that follows for fuel setting can be done
with the housing for the fuel injection pumps either on or
off the engine.
REMOVAL OF COVER
1. Shut-off solenoid. 2. Cover.
Before any service work is done on
this fuel system, the outside of the
housing for the fuel injection pumps
and all parts connected to it must be
Remove shut-off solenoid (1) and cover (2).
Put the 5P298 Zero Set Pin (5), with 17.8507 on
it, in the pump housing.
INSTALLATION OF COVER
3. 5P4226 Adapter. 4. 3J6956 Spring. 5. 5P298 Zero
Set Pin, with 17.8507 on It.