FUEL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
FUEL QUALITY TEST - CONTINUED
If fuel quality is determined to be problem, drain fuel system (WP 0020 00) and replace fuel filters (WP 0036 00). Fill
tank with good fuel (TM 5-3805-290-10). Engine performance can be affected by these characteristics:
Cetane number of fuel.
Air in fuel.
Fuel mixed with other fluids.
FUEL SYSTEM INSPECTION
N OT E
Problems with components that send fuel to engine can cause low fuel pressure. This can decrease engine
Check all fuel lines for fuel leakage. Fuel lines must be free from dents, restrictions, and sharp bends. Verify fuel return
line is not collapsed.
WARN I N G
DO NOT use a tool that causes sparks to cut open fuel filter. Failure to follow this warning may result in
death or injury to personnel.
Inspect filter for excessive contamination. Determine source of contamination. Make necessary repairs.
To remove air from fuel system, prime fuel system (WP 0029 00).