TM 9-2320-289-343-13.PISTON, CONNECTING ROD, AND CONNECTING ROD BEARING REMOVALAND REPAIR (Con’t).NOTEPistons (8) in 2 rear cyLinder bores (18) run hotter than other 6 pistons.Greater cylinder bore clearance is provided to allow for greater heatexpansion.9.Measure diameter of cylinder bore (18). Measure diameter of piston (8) 90 degrees frompiston pin hole (16) at centerline,Subtract piston diameter from cylinder bore diameter todetermine clearance. Maximum clearance is 0.005 in. (O. 127 mm) for 6 front pistons and0.0055 in. (0.140 mm) for 2 rear pistons.TA506523-40
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