TM 5-3895-382-24 Illustration 194 Typical example. 1. Ream   piston   pin   bushing   (7)   in   order   to   obtain  a clearance  of  0.0085  ±0.0055  mm  (.0003  ±.0002  inch) between the piston pin and the piston pin bushing. 2. Lubricate all components with clean engine oil. 3. Use  a  suitable  press  and  a  suitable  adapter  to  install piston pin bushing (7) into connecting rod (6). NOTE:    Ensure that the oil hole is aligned with the oil hole at the top of the connecting rod. Illustration 195 Typical example. 4. Install bearing (5) in connecting rod (6). 5. Install piston pin (4). NOTE:    If the piston pin cannot be installed by hand, heat the piston to a temperature of 45 ±5° C (113°  ±9° F). 6. Use Tool (B) to install two retaining rings (3). 7. Use Tool (A) to install piston rings (1) on piston (2) with the following steps. a. Install  the  oil  control  piston  ring  in  the  groove that is lowest on the piston.  The latch pin must be inside the ends of the spring. NOTE:    Ensure that the latch pin is 180 degrees from the piston ring gap. b. Install  the  cast  iron  piston  ring  with  the  tapered face  into  the  second  groove  on  the  piston.    The stamp   "TOP"   must   be   toward   the   top   of   the piston. NOTE:    Cast  iron  piston  rings  that  are  new  have  a  red mark which must be on the left of the piston ring gap when the piston ring is installed. c. Position   the   piston   ring   gaps   at   120   degrees away from each other. d. Install the piston ring with the barrel face and the molybdenum  insert  into  the  top  groove  on  the piston.  The top piston ring has a wedge shape. The stamp "TOP" must be toward the top of the piston. NOTE:    Top piston rings that are new have a green mark which must be on the left of the ring gap when the ring is installed. End By: a. Install   the    pistons   and   the   connecting   rods. Refer   to   Disassembly   and   Assembly,   "Piston and Connecting Rods - Install". Pistons and Connecting Rods - Install SMCS Code: 1225-012 Installation Procedure Table 37 Required Tools Tool Part Number Part Description Qty A 1U-6684 Piston Ring Compressor 1 B 8T-0455 Liner Projection Tool Group 1 7-77