Testing And Disassembling The Electric Fuel Pump - Westerbeke 9.0 BCG Technical Manual

Testing and Disassembling the Electric Fuel Pump
To test the electric lift pump, follow the steps below.
1. Working from a workbench, place the pump's inlet
line into a clean tank of gasoline. Use caution with
gasoline being used.
2. Place the outlet fuel line into a measuring container
such as a beaker.
3. Using a fully-charged 12-volt battery, connect a
negative (-) wire to the fuel pump's body. Energize
the fuel pump by connecting the pump's positive
( +) lead to the battery's positive terminal. Refer to
the illustration to the right
4. When the pump is energized, it should pump a min-
imum of 1 gallon per 3 minutes at 3.5 psi (3.7 liters
per 3 minutes). A pumping rate below this is not
adequate. If the pump's pumping rate is below this
rating, perform the following steps.
A. Replace the pump's filter and gasket. A clogged
filter may be restricting the flow of fuel.
B. Retest the pump as described in steps # 3-4.
C. If the pump fails to meet the specified 1 gallon
per 3 minutes minimum, replace the fuel lift
pump.
117
POSITIVE
(+J
CONNECTION
FILTER" - - - ,
GASKET
MAGNET
----.....~=il~
PUMP
COVER
Westerbeke Generators