TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 2-5. MALFUNCTION, TEST OR INSPECTION, AND CORRECTIVE ACTION PROCEDURES (Cont) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 5. ENGINE WILL NOT DELIVER RATED POWER Step 1. Check crankcase oil level. Fill as required. Step 2. Check for cIogged/dirty air cleaner system. Clean, repair, or replace as required. Step3. Check for improper engine adjustments (Refer to Paragraphs 8-4 thru 8-14). Step 4. Check governor linkage from governor to fuel rack for binding or damage (Refer to Para 8-7). Step 5. Check for low cylinder compression (Refer to Para 8-14). NOTE ● Return fuel temperature must be less than 150 o F (66°C) or loss of horsepower will occur. ● A power decrease of 0.6 to 4.0 horsepower for each 10° temperature rise above 90 o F (32 o C) will occur. Step 6. Step 7. Check for high return fuel temperature. Inspect turbocharger for damage. CAUTION Do not attempt to remove carbon build up on turbine wheel without removing turbocharger from engine. Blades of wheel must be thoroughly cleaned. Chunks of carbon left on blades could cause bearing failure. However, it is not necessary to disassemble turbocharger to remove dirt and dust build up. a. Remove turbocharger exhaust pipe. 2-8