Dodge RAM TRUCK 1500 1995 Service Manual page 1217

COMPONENT REMOVAL/INSTALLATION—DIESEL ENGINE 14 -135
INJECTION
PUMP
GEAR
TIMING GEAR
COVER J9414-4
Fig. 30 injection Pump Gear Washer and Nut
gear forward until it loosens from the injection pump
shaft. Pull on the gear only enough to loosen it
from the injection pump shaft. Pulling the gear
to far may cause damage or breakage to the
gear cover.
Fig. 31 Separating injection Pump Gear from Pump
Shaft
(23) Remove the two" (2) injection pump-to-lower
mounting bracket bolts (Fig. 32).
(24) Remove the four (4) injection pump-to-gear
housing mounting nuts (Fig. 25).
(25) Remove the injection pump from gear housing.
Take care not to nick the injection pump shaft
on the aluminum gear housing when removing
pump.
(26) Clean the injection pump o-ring mounting sur­
faces on both the gear housing and pump.
Fig. 32 Pump Mounting Bolts
INSTALLATION
CAUTION: Before installing the injection pump, be
sure that number 1 cylinder is at the Top Dead Cen­
ter (compression stroke) position. Engage the tim­
ing pin on the rear of the gear cover (Fig. 27) into
the rear of the camshaft gear. Rotate crankshaft if
necessary.
Before injection pump installation, it must be set
(pump shaft rotated) to a certain position to attain
accurate pump timing. Remove the access plug from
the side of pump (Fig. 33). Stored behind this access
plug is a plastic timing pin tool (Fig. 34). This tool is
used to align the injection pump timing tooth (Fig.
35) to the center of access hole.
Installing Original Pump: If the original pump
is being reinstalled, the pin tool should already be
mounted with the slotted end facing outward (Fig.
34). When the position of this tool has been reversed,
with the slotted end facing inward, it is used as a
pump timing pin tool.
Installing New or Rebuilt Pump: If a new or re­
built pump is being installed, the pump should have
been shipped with the slotted end of the timing pin
tool engaged to the timing tooth in the pump.
To set injection pump timing on an original pump
or when checking timing on a new pump, rotate the
pump shaft until the timing tooth appears in the cen­
ter of the plug opening (Fig. 35). Install the slotted
end of the timing pin tool over the timing tooth. The
pump shaft may have to be rotated slightly to align
the tool to the tooth. Do not force the slots in the tool
over the timing tooth.