4-4
FUEL
E
FUEL JOINT, FUEL FILTER AND FUEL PUMP
SERVICE POINTS
Fuel joint inspection
1. Inspect:
●
Fuel joint
Crack/Leak/Damage
→
Replace.
2. Measure:
●
Fuel joint operation
Impossible to maintain the specified
pressure for 10 sec.
→
Replace.
Measuring steps:
●
Attach the Mity vac.
Mity vac:
YB-35956/90890-06756
●
Apply the specified pressure.
Specified pressure:
50 kPa (0.5 kg/cm
2
, 7.1 psi)
Fuel filter inspection
1. Inspect:
●
Filter element
●
Filter cup
Crack/Leak/Clog
→
Replace.
Contamination
→
Clean.
Fuel pump inspection
1. Inspect:
●
Body
Crack/Leak/Damage
→
Replace.
2. Inspect:
●
Seat valve
Crack/Distortion
→
Replace.
3. Inspect:
●
Diaphragm
Damage
→
Replace.
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