TM 5-2420-230-24-2
Specifications
B3.9 and B5.9 Series Engines
Page E-20
Section E - Engine Identification
4B Exhaust System Data (nonautomotive)
EXHAUST SYSTEM
4B3.9
4BT3.9
4BTA3.9
Maximum Allowable Exhaust Re-
striction at Rated Speed and
76.2 mm Hg [3.0 in Hg]
76.2 mm Hg [3.0 in Hg]
76.2 mm Hg [3.0 in Hg]
Loaded
6B Exhaust System Data (nonautomotive)
EXHAUST SYSTEM
6B5.9
6BT5.9
6BTA5.9
Maximum Allowable Exhaust Re-
striction at Rated Speed and
76.2 mm Hg [3.0 in Hg]
76.2 mm Hg [3.0 in Hg]
76.2 mm Hg [3.0 in Hg]
Loaded
L-572