Engine Maintenance
109
3. Remove the old injection pump. Use the
injection pump gear tool P/N 204-1011 to
remove the injection pump gear without
removing the timing gear cover (see “Injection
Pump Removal” on page 111).
NOTE: Remove the injection pump gear by
removing the nut and lock washer that
secure the injection pump gear assembly to
the injection pump shaft. The injection pump
gear assembly is made of three pieces; the
flange, the gear, and the transfer pump cam.
Do not loosen or remove the four bolts that
fasten the gear to the flange because that
changes the factory-set timing. The EPA
certification is based on the factory-set
timing. If the factory-set timing is changed,
the EPA certification is void.
4. Record the injection angle marked on the old
injection pump (see the following
photographs). The injection angle mark is
located on the side of the pump facing the
engine. The injection angle mark on the pump
does not use a decimal point. Add a decimal
point before the last digit of the injection
angle mark to get the injection angle. The
injection angle mark in the following
photographs is 67. That equals an injection
angle of 6.7 degrees.
NOTE: If you cannot read the injection angle
mark, contact the Thermo King Service
Department with the injection pump serial
number or the engine serial number and they
will provide the injection angle. The injection
pump serial number is located on the bottom of
the sticker on the injection pump.
1.
Do Not Loosen or Remove These Four Bolts
2.
Remove Nut and Lock Washer
Figure 176: Removing Injection Pump Gear
Examples
Injection Angle Mark
Injection Angle
67
6.7 Degrees
85
8.5 Degrees
1
2
1
1
1
1.
Injection Angle Mark
Figure 177: Injection Angle Mark Location
1.
Injection Angle Mark
Figure 178: Injection Angle Mark
1.
Injection Pump Serial Number
Figure 179: Injection Pump Serial Number Location
1
1
1
