TM 5-2420-230-24-2
Specifications
B3.9 and B5.9 Series Engines
Page E-6
Section E - Engine Identification
Fuel System
Fuel System Data (automotive)
Distributor-Type Fuel Injection Pumps
B3.9
B5.9
Maximum Inlet Restriction to the Fuel Trans-
100 mm Hg [4 in Hg]
100 mm Hg [4 in Hg]
fer Pump Must Not Exceed
Maximum Allowable Return Line Restriction
518 mm Hg [20.4 in Hg]
518 mm Hg [20.4 in Hg]
Maximum Allowable Pressure Drop across
35 kPa [5 psi]
35 kPa [5 psi]
Fuel Filter
Maximum Inlet Pressure to the Injection
70 kPa [10 psi]
70 kPa [10 psi]
Pump Must Not Exceed
In-Line-Type Fuel Injection Pumps
B3.9
B5.9
Maximum Inlet Restriction to the Fuel Transfer
100 mm Hg [4 in Hg]
100 mm Hg [4 in Hg]
Pump Must Not Exceed
Fuel Transfer Pump Minimum Output Pressure
175 kPa [25 psi] @ Rated rpm
175 kPa [25 psi] @ Rated rpm
Fuel Filter Restriction (maximum pressure drop
35 kPa [5 psi]
35 kPa [5 psi]
across filters)
Fuel Pressure Gallery Pressure
140 kPa [20 psi] @ Rated rpm
140 kPa [20 psi] @ Rated rpm
Fuel Return Maximum Restriction
518 mm Hg [20.4 in Hg]
518 mm Hg [20.4 in Hg]
L-558
