TM 5-3805-291-23-1
FUEL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0011 00
AIR INLET AND EXHAUST SYSTEM INSPECTION - CONTINUED
Exhaust Restriction
WARN I N G
Hot engine components can cause injury from burns Before performing maintenance on engine, allow
.
engine and components to cool.
Making contact with a running engine can cause burnsfrom hot parts and can cause injury from rotat-
ing parts. When working on a running engine, avoid contact with hot parts and rotating parts.
N OT E
Back pressure is difference in pressure between ex aust pressure at outlet elbow and atmospheric air.
h
Test location can be anywhere along the exhaus piping after turbocharger but before muffler.
t
1.
Connect differential pressure gage pressure port to test location (5).
2.
Leave differential pressure gage vacuum port open to
atmosphere.
3.
Start engine (TM 5-3805-291-10).
4.
Run engine in no-load condition at high idle (TM 5-
3805-291-10).
5.
Record value.
6.
Maximum allowed back pressure: 50 in. of H2O (12.4
kPa).
427-C0613
0011 00-11