Quantcast c.  Inspection and Repair (Contd) - TM-9-2815-225-34P_133

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TM 9-2815-225-34&P 3-34.  ENGINE BLOCK REPAIR (Contd) LOCATION/ITEM ACTION REMARKS c.  Inspection and Repair (Contd) NOTE The cylinder sleeve counterbore must be altered or repaired if: a.   Material has been milled from top surface of cylinder block. b.   Ledge of counterbore is not flat or even. c.   Protrusion of cylinder liner is not correct. d.   Cracks extend more than halfway out from radius. 27.     Cylinder sleeve counterbore   Repair as follows: of engine block (14) a.  Position adapter plate on Use engine block counterbore tool cylinder sleeve counterbore. (3375455).  Check counterbore tool bit before boring operation.  A cor- rectly ground tool bit will leave counterbore surface completely flat or cupped to a 30-degree angle.  The cup is preferred with a 0.005-0.015-in. (0.127-0.381-mm) radius as shown in cylinder sleeve counterbore cross section. b.  Tighten top and bottom locating pins by turning in screws. c.  Set tool adjustable sleeve so blade just contacts bottom of counterbore ledge. 3-102


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