TM 10-3930-659-34 5-3. PISTON, CONNECTING ROD, AND CONNECTING ROD BEARING MAINTENANCE (Con’t). 7. Position  upper  main  bearing  (12)  on  connecting rod (9). Ensure that tang on upper main bearing fits  in  locking  groove  on  connecting  rod.  Apply lubricating oil to upper main bearing. 8. Position    lower    main    bearing    (11)    on    main bearing cap (8). Ensure that tang on lower main bearing  fits  in  locking  groove  on  main  bearing cap. Apply lubricating oil to lower main bearing. e. INSTALLATION 1. Using flywheel turning tool, rotate flywheel until mating crankshaft journal for piston (10) and connecting rod (9) is accessible. 2. Apply lubricating oil to all mating surfaces of piston (10) and connecting rod (9). CAUTION •  Piston  and  connecting  rod  must  be  installed  as  noted  during  removal.  Failure  to  do  so  may damage parts. • Use care not to damage crankshaft journal when installing piston and connecting rod. NOTE Ensure that the word FRONT on piston faces front of engine block. 3. Using piston ring compressor and handle of hammer, tap piston (10) and connecting rod (9) in engine block (1). 4. Apply lubricating oil to threads of two new bolts (7). 5. Install main bearing cap (8) on connecting rod (9) with two bolts (7). Torque bolts to 55 lb.-ft. (75 N•m). TA708143 5-30