TM-9-2815-210-34-2-2 LDS-465-1/LDS-465-2 Multifuel Engine Maintenance Manual Part 2
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TM 9-2815-210-34-2-2 b. Inspection and Repair. FRAME 1 1. 2. 3. Check that pistons (1) are not burned, scored, scuffed or have any broken ring grooves, deep scratches or signs of metal pick-up. If any piston has such damage, get a new one. Check that spherical combustion chamber (2) of piston (1) is not burned or distorted and does not have cracks that are more than 0.020 inch wide or 5/16 inch in length. Fix minor damage with a fine mill file. If more repair is needed, get a new piston. Check that piston pin bore (3) measurement is between 1.6251 and 1.6263 inches. If piston pin bore is oversized, get a new piston. GO TO FRAME 2 4-131