ARMY TM 9-2815-252-24 AIR FORCE TO 38G1-92-2 TABLE 3-2.  Troubleshooting Malfunction Test or Inspection Corrective Action Adjust fuel pump timing.  Refer to paragraph 3-14. 8. EXCESSIVE OIL CONSUMPTION. Step 1. Check for oil leakage, a. Inspect engine for oil leaks.  If not leaks, do step 2. b. Repair or replace defective components. Step 2. Check for blocked air intake system. Remove blockage as found.  If no blockage, do step 3. Step 3. Check for defective intake or exhaust valve seals or valve guides. a. Repair or replace defective components.  Refer to paragraph 3-27. b. Disassemble and inspect valve seals and guides.  Refer to paragraph 3-27.  If not defective replace defective engine. 9. LOW OIL PRESSURE. Step 1. Check for improper grade of oil. a. Refer to end item lubrication order.  If proper grade of oil, do step 2. b. If improper grade of oil, refer to paragraph 3-20.1.  and change oil and filter. Step 2. Check for engine running hot. a. Refer to Engine Overheating, malfunction 7, in this table. b. If not running hot, repair or replace defective engine. 10.  EXCESSIVE FUEL CONSUMPTION. Step 1. Check for leak in fuel system. 3-7