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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) 27.     Cylinder sleeve counterbore of engine block (14) (Contd) CAUTION Never turn counterbore tool counterclockwise.  Doing so will damage cutter blade. Do not remove more than a total of 0.062 in. (1.575 mm) of material when counterbor- ing.    Inside  diameter  of  ledge  should  never  be  less  than  outside  diameter  of  cylinder sleeve.  A ledge that drops toward center of cylinder may cause cylinder sleeve to break during installation. d.  Turn counterbore tool clockwise with even pressure. e.  Use a series of light cuts to Do not remove more than clean up entire circumference 0.004 in. (0.102 mm) material of seat. per cut. f.  Check seat to determine if additional cuts are required. g.  Chamfer edge of counterbore Use shims to compensate for ledge 45° after counterboring. metal removed and to restore Do not chamfer deeper than cylinder sleeve (2) protrusion to 0.013-0.024 in. (0.330-0.610 mm). 0.003-0.006 in. (0.076-0.152 mm). Use as few shims as possible. Where possible, use one thick shim in place of two or more thin- ner shims. h.  Remove counterboring tool. 28. Six cam follower Inspect for wear or damage. Replace if worn or damaged. pins (15) Force may be required to remove cam follower pins (15).  They are a press fit.  Install using a brass hammer. 29.     Six head-to-block Inspect for wear or damage. Replace if worn or damaged. pins (6) Force may be required to remove head-to-block pins (6).  They are a press fit.  Install using a brass hammer. d.  Assembly NOTE Assembly steps 30 through 34 will to be completed prior to mounting engine block on maintenance stand. Apply   pipe   sealant   to   threads   of   plugs   installed   for   water   passages,   and   apply lubricating oil to plugs installed for oil galleys. 30.     Plug (7) Install on engine block (14). Tighten to 30 lb-ft (41 Nm). 31.     Two plugs (29) Install on engine block (14). Balance of plugs are on opposite side of block.  Tighten to 45 lb-ft (61 Nm). 3-104


 


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