FUEL
FUEL PUMP
CHECKING THE FUEL PUMP
1. Check:
1
•
Body
2
•
Body
3
•
Body
Cracks/damage/leak → Replace.
Foreign matters → Clean.
•
Seat valve
Cracks/ damage → Replace.
•
Diaphragm
Damage → Replace.
2. Check:
•
Fuel pump
Reverse air flow → Replace.
Checking steps
NOTE:
Do not overpressurize the fuel pump.
Excessive pressure may cause air to leak
out.
(1) Install the Vacuum/pressure pump gauge
set onto the fuel pump as shown.
Vacuum/pressure pump gauge set
90890-06756
(2) Apply the specified pressure with the
Vacuam/pressure pump gauge set.
Fuel pump pressure
50 kPa (0.5 kg/cm
NOTE:
• Make sure no air comes out of the
opposite side of the fuel pump.
• Start the engine and confirm the proper
function.
4-4
4
5
2
, 7.25 psi)
E