TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 (7) (8) (9) (10) (11) To check bearing to crankshaft journal clearance, place a plastic gage strip (28) between crankshaft journal (26) and connecting rod cap (3). Tighten connecting rod nuts (2) to 60-70 Ib-ft (81-95 N-m). Remove connecting rod nuts and cap, and measure width of plastic gage with measuring strip (29). Maximum clearance with used parts is 0.0056 inch. Lubricate bearing with clean engine oil and install bearing cap (3) and lower bearing shell (4) on connecting rod (5) with identification numbers on cap and rod adjacent to each other. Install two connecting rod bolt nuts (2) and torque to 60-70 lb-ft (81-95 N-m). NOTE If necessary, pry connecting rods apart before measuring side clearance. Using feeler gage (30), measure side clearance between each pair of connecting rods. Clearance limits are 0.008 to 0.016 inch. Repeat steps (1) thru (9) to install additional liners, pistons, and rod assemblies. Use hold-down clamps to hold each installed liner in place. Remove all liner hold down clamps. END OF TASK FOLLOW-ON MAINTENANCE Para 6-33 6-32 6-28 6-21 6-35. 6-36. 6-37. Description Install oil pump Install oil pressure regulator and relief valve Install cylinder head Install oil pan CYLINDER LINER MAINTENANCE CRANKSHAFT MAINTENANCE CYLINDER BLOCK MAINTENANCE (See Para 4-34) (See Para 4-35) (See Para 4-36) 6-43