TM 10-4320-315-244-5.MAINTENANCE OF CYLINDER LINERS - (Cont)(4)Remove shims (1) from cylinder (2). Record thickness of shims.b.INSPFCT,CAUTIONTo prevent malfunction of parts, piston must be replaced if new cylinder is being Installed.(1)Inspect cylinder walls for scratches or other damage. Replace damaged cylinder.(2)Check machined mating surface on top and bottom of cylinder. If surface is not smooth or is grooved pitted, replace cylinder.(3)Measure cylinder bore at depth levels 1, 2, 3, and 4 (Figure 4-7).Figure 4-7. Cylinder MeasurementNOTEMeasurements at all four levels must be made along center line a and cross-line b.(4)Replace cylinder if any measurement exceeds 4.007 in. (101.78 mm).(5)Inspect cylinder mating surface on crankcase for scratches or burrs. Reface damaged surface.4-10
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