TM 10-3930-671-24 Table 2-2.  Unit Troubleshooting Procedures - CONT. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION ENGINE (CONT.) 2. ENGINE DOES NOT RUN EVENLY - CONT. Step 6. Test cylinder compression. If all cylinders do not read between 325 - 400 psi, go to step 7. If all cylinders read between 325 - 400 psi, go to step 8. Step 7. Check cylinder head valve clearance. If cylinder head valves are out of adjustment, adjust valves (Appendix F, Engine  Valve Clearance Adjustment, Section 4.5). If cylinder head valve clearances are OK, go to step 8. Step 8. Bleed fuel system (Appendix F, Fuel System, Section 5.0), and prime fuel system (Appendix F, Diesel Fuel Injection System, Section 5.3). If engine still does not run evenly, go to step 9. Step 9. Check that fuel type is correct type and not contaminated (W-F-800). If fuel is incorrect type or contaminated, drain fuel tank and refill with correct/clean fuel. If fuel is OK, notify DS/GS maintenance. 3. A LOSS OF POWER. Step 1. Check if fuel lines and fittings are loose. If fuel lines and/or fittings are loose, tighten or replace; then, bleed fuel system (Appendix F, Fuel System, Section 5.0), and prime fuel system (Appendix F, Diesel Fuel Injection System, Section 5.3). If fuel lines and fittings are secure, go to step 2. Step 2. Test fuel supply pressure at engine idle (650-700 rpm). Disconnect fuel supply line at inlet side of fuel filter.  Test fuel pressure.  If test results are not 1.50 to 2.25 psi, replace fuel supply pump (Para 3-17). If test results are 1.50 to 2.25 psi, go to step 3. 2-5