Outlet
Arm
REMOVAL
1.
Disconnect the fuel pump outlet and inlet pipes.
2. Fuel pump ASSY removal
(1
)
Remove the fuel pump ASSY.
(2) Remove the insulator.
AIRTIGHTNESS INSPECTION
1. Preparation for inspection
(1) Supply a small volume of gasoline to the fuel pump to
keep the airtightness of the check valve.
(2) Operate the arm without blocking the pipe, and check the
arm travel and play.
Note:
The arm travel and play checked in the preparation shall be
used as the basis for later inspections.
2.
Diaphragm inspection
(1) Block the inlet pipe and outlet union with fingers, and
operate the arm to check that the arm movement
becomes heavy.
Caution:
Do
not operate the arm forcibly.
3.
Inlet valve inspection
Block the outlet union with a finger and operate the arm to
check that it moves freely without reaction force and that the
play of the arm increases.
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