Fuel Water Separator/Filter Unit; Injection Pump Identification - Dodge D250 1990 Service Manual

Fuel System
DODGE Turbo Diesei
Fuel System Malfunction - Diagnosis
Page 14-5
Fuel Water Separator/Filter Unit
Caution: Be sure to use the correct filter element
Filtration and separation of water from the fuel is important for
trouble-free operation and long life of the fuel system. Some of
the clearances between the pump parts are very close. For this
reason the parts can easily be damaged by rust formation and
contaminants.
The element has a valve which can be opened regularly to
drain the collected water.
Regular maintenance, including draining moisture from the fuel
water separator/filter is essential to keep water out of the fuel
pump.
Note: If excess water re-appears In the fuel water separator
filter in a short period of time, the fuel tank must be removed,
drained and cleaned.
Injection Pump Identification
Production pump data is imprinted on the housing as shown.