DETROIT DIESEL 53
Trouble Shooting (Engine) 15.2
Chart 4
NO FUEL OR INSUFFICIENT FUEL
-------------------------------- -------------------------------- SUGGESTED REMEDY -------------------------------- ------------------------------
1. The fuel tank should be filled above the level of the fuel suction tube.
2. Perform a Fuel Flow Test and, if air is present, tighten loose connections and replace cracked lines.
3. Perform a Fuel Flow Test and, if air is present, replace the fuel strainer gasket when changing the strainer element.
4. Perform a Fuel Flow Test and, if air is present with all fuel lines and connections assembled correctly, check for and
replace faulty injectors.
5. Perform a Fuel Flow Test and replace the fuel strainer and filter elements and the fuel lines, if necessary,
6. Consult the Fuel Oil Specifications for the recommended grade of fuel.
7. Perform a Fuel Flow Test and, if inadequate, clean and inspect the valve seat assembly.
8. Replace the-gear-and shaft assembly or the pump body.
9. Check the condition of the fuel pump drive and blower drive and replace defective parts.
10. Replace with larger tank-to-engine fuel lines.
11. Install a restricted fitting in the return line.
12. Make sure that the check valve is installed in the line correctly; the arrow should be on top of the valve assembly or
pointing upward. Reposition the valve if necessary. If the valve is inoperative, replace it with a new valve assembly.
13. Check the engine fuel spill-back temperature. The return fuel temperature must be less than 150 F. or a loss in
horsepower will occur. This condition may be corrected by installing larger fuel lines or relocating the fuel tank to a
cooler position.
November, 1973 SEC. 15.2
Page 11
