TM 10-3930-669-34 2-11.  ENGINE SYSTEM TROUBLESHOOTING (CONT). 7.  ENGINE DOES NOT DEVELOP FULL POWER. INITIAL SETUP Tools and Special Tools Materials/Parts Tool Kit, General Mechanic’s: Automotive Cap and Plug Set (Item 5, Appendix B) (Item 1, Appendix E) Tags, Identification (Item 21, Appendix B) Pressure Test Kit (Item 5, Appendix E) Gauge, Tester, Injection Pump References (Item 5, Appendix E) TM 10-3930-669-10 STE(Optional) (Item 14, Appendix E) TM 10-3930-669-20 Personnel Required Two Equipment Condition Engine OFF (TM 10-3930-669-10) MAIN POWER switch OFF (TM 10-3930-669-10) Parking brake applied (TM 10-3930-669-10) Wheels chocked (TM 10-3930-669-10) KNOWN INFO Nothing. POSSIBLE PROBLEMS Injection pump faulty. Low engine compression. Cylinder head(s) or gasket(s) faulty. Valves or valve springs faulty. TEST OPTIONS Injection pump pressure test. REASON FOR QUESTION If injection pump is faulty engine will not develop full power. Replace injection(Para 4-5). Go to Step 5 of this Fault WARNING Read WARNING on Page 2-63 2-62