FUEL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
AIR INLET AND EXHAUST SYSTEM INSPECTION - CONTINUED
Air Inlet Restriction - Continued
WARN I N G
Hot engine components can cause injury from burns Before performing maintenance on engine, allow
engine and components to cool.
When working on a running engine, avoid contact with hot or rotating parts.
N OT E
Test location can be anywhere along air inlet piping after engine air cleaner but before turbocharger.
Connect differential pressure gage vacuum port of internal combustion engine tester to test location (4).
Leave differential pressure gage pressure port of internal combustion engine tester open to atmosphere.
Start engine (TM 5-3805-291-10).
Run engine in no-load condition at high idle (TM
Multiply value from step 4d. by 1.8.
Compare result from step 4e. to these values:
Used air cleaner element maximum
restriction 25 in. of H2O (6.2 kPa).
New air cleaner element maximum
restriction 15 in. of H2O (3.7 kPa).