FUEL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
AIR INLET AND EXHAUST SYSTEM INSPECTION - CONTINUED
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.
Test location can be anywhere along the exhaus piping after turbocharger but before muffler.
Connect differential pressure gage pressure port to test location (5).
Leave differential pressure gage vacuum port open to
Start engine (TM 5-3805-291-10).
Run engine in no-load condition at high idle (TM 5-
Maximum allowed back pressure: 50 in. of H2O (12.4