Dodge RAM 1500 1998 Owner's Manual page 1623

14 - 54 FUEL DELIVERY - DIESEL
FUEL INJECTION PUMP (Continued)
REMOVAL
CAUTION: Cleanliness cannot be overemphasized
when handling or replacing diesel fuel system com-
ponents. This especially includes the fuel injectors,
high-pressure fuel lines and fuel injection pump.
Very tight tolerances are used with these parts. Dirt
contamination could cause rapid part wear and pos-
sible plugging of fuel injector nozzle tip holes. This
in turn could lead to possible engine misfire.
Always wash/clean any fuel system component
thoroughly before disassembly and then air dry.
Cap or cover any open part after disassembly.
Before assembly, examine each part for dirt, grease
or other contaminants and clean if necessary. When
installing new parts, lubricate them with clean
engine oil or clean diesel fuel only.
(1) Disconnect both negative battery cables at both
batteries. Cover and isolate ends of both cables.
(2) Remove intake manifold air intake tube (above
injection pump) and its rubber connector hose (Fig.
7).
(3) Remove accessory drive belt.
(4) Thoroughly clean the rear of injection pump,
and attachment points for its 3 fuel lines (Fig. 8).
Also clean the opposite ends of these same 3 lines at
their attachment points.
(5) Disconnect Fuel Control Actuator (FCA) electri-
cal connector at rear of injection pump (Fig. 9).
CAUTION: Whenever a fuel line fitting is connected
to a secondary fitting, always use a back-up wrench
on the secondary fitting. Do not allow the second-
ary fitting to rotate.
(6) Remove fuel line (injection pump-to-fuel pres-
sure limiting valve).
(7) Remove fuel line (injection pump-to-fuel rail).
Use back-up wrench on fitting at fuel pump.
(8) Remove fuel line (injection pump-to-fuel filter
housing).
(9) Remove fuel pump drive gear access cover
(plate) with a 3/8" drive ratchet. Plate is threaded to
timing gear cover (Fig. 10).
(10) Remove fuel pump drive gear mounting nut
and washer.
(11) Attach C3428B, or L4407A (or equivalent)
gear puller (Fig. 11) to pump drive gear with 2 bolts,
and separate gear from pump (a keyway is not used
on this particular injection pump). Leave drive gear
hanging loose within timing gear cover.
(12) Remove 3 injection pump mounting nuts (Fig.
12), and remove pump from engine.
Fig. 7 INTAKE TUBE AND CONNECTING HOSE
1 - MANIFOLD ABOVE HEATERS
2 - RUBBER CONNECTING HOSE
3 - METAL INTAKE TUBE
4 - CLAMPS (2)
Fig. 8 OVERFLOW VALVE
1 - BANJO BOLTS
2 - PUMP MOUNTING NUTS (3)
3 - FUEL INJECTION PUMP
4 - CASCADE OVERFLOW VALVE
DR