TM 5-3805-280-24-2
Engine Tune-Up and Break-In
CHECK CRANKCASE VENTILATION SYSTEM
100
10
1. Inspect crankcase ventilation system for restrictions
and bent or damaged condition. Lack of ventilation
causes excessive oil consumption or sludge to form in
crankcase. This can lead to clogging of oil passages,
filters, and screens, resulting in serious engine
damage.
2. Clean crankcase vent tube or hose with solvent and
compressed air if restricted. Replace hose if
necessary.
A--Crankcase Breather
RG,100,JW7638
1921NOV971/1
13-473
