Quantcast FIGURE 3-153.  Measuring Piston to Liner Clearance

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ARMY TM 9-2815-256-24 AIR FORCE TO 38G1-96-2 MARINE CORPS TM 2815-24/5 FIGURE 3-153.  Measuring Piston to Liner Clearance (6) Turn piston 90 degrees in liner.  Use a feeler gage to measure clearance between piston skirt and liner 90 degrees to piston pin bore.  Record the measured clearance. (7) The difference between the two measurements in steps (5) and (6) is the amount the liner is out of round at the top of the liner. (8) If liner is out of round more than 0.002 inch (0.05 mm) at top or bottom, install a new piston and liner set. (9) Find difference between clearance measured in step (2) and clearance measured in step (5).  This is the amount the liner is tapered. (10) If liner is tapered more than 0.002 inch (0.05 mm) install a new piston and liner set. 3-46.2. Connecting Rod. a. Check bearing to journal oil clearance as follows using bearing gage (PLASTIGAGEPR1). CAUTION Never use new connecting rod capscrews when checking rod bearing ID.  Use new capscrews only for final assembly of connecting rods. CAUTON Using pneumatic wrenches may cause thread damage. CAUTION Keep  bearing  inserts  with  their  respective  rods  and  caps.    Mark  rods,  pistons,  and  caps  to  ensure correct assembly in same location. 3-201


 


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