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ARMY TM 9-2815-256-24 AIR FORCE TO 38G1-9-2 MARINE CORPS TM 2815-24/5 FIGURE 3-159.  Measuring Camshaft Bore Diameter (6) Measure  cylinder  block  top  deck  flatness  using  precision  straightedge,  refer  to  FIGURE  3-160.    New flatness is 0.003 inch (0.08 mm).  If flatness is not as specified, resurface engine block. FIGURE 3-160.  Measuring Cylinder Block Top Deck Flatness CAUTION When   cylinder   block   is   machined   (top   deck   or   crankshaft   bearing   bores),   the   dimension   from centerline of crankshaft bearing bore to top deck will be changed.  Make sure that this dimension will not be less than 11.889 inches (301.98 mm).  Otherwise, piston may contact cylinder head. CAUTION If cylinder block top deck is resurfaced, also measure depth of liner counter bores.  Bore depth must be within 0.234 to 0.236 inch (5.95 to 5.99 mm). 3-207


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