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Fuel Pump

NOTE: Fuel pump performance is a measurement of fuel pressure and volume availability, not regulated fuel pressure.
FUEL PUMP PERFORMANCE

Application psi (kg/cm2 ) Min. Vol. In 30 Sec.: Pts. (L)
4-Cylinder N/A N/A
6-Cylinder 77-80 (5.4-5.6) 2.1 (1)
V8 90-93 (6.3-6.5) 2.1 (1)
REGULATED FUEL PRESSURE

Application (1) psi (kg/cm2 ) (2) psi (kg/cm2 )
4-Cylinder N/A N/A
6-Cylinder (103 Engine Series) 70-73 (4.9-5.1) 41 (2.9)
V8 83-86 (5.8-6.0) 41 (2.9)
(1) Engine idling at operating temperature.
(2) Minimum rest pressure after 30 minutes.
DIESEL FUEL PUMP TIMING (1)

Application Degrees ATDC
5 & 6 Cylinder 14.5
(1) Fuel pump timing should be checked every 15,000 miles.
DIESEL INJECTOR NOZZLE PRESSURES

Application psi (kg/cm2 )
5 & 6 Cylinder Opening Pressure 1957.5-2102.5 (137.6-147.8)