TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Specifications
Section E - Engine Identification
Page E-19
Exhaust System
Exhaust System Data (automotive)
B3.9
B5.9
Maximum Allowable Exhaust
Restriction at Rated Speed and
114.3 mm Hg [4.5 in Hg]
114.3 mm Hg [4.5 in Hg]
Loaded (1991 EPA certified)
Maximum Allowable Exhaust
152.4 mm Hg [6 in Hg] with oxidation
152.4 mm Hg [6 in Hg] with oxidation
Restriction at Rated Speed and
catalyst
catalyst
Loaded (1994 EPA certified)
L-571