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ARMY TM 9-2815-255-24 AIR FORCE TO 38G1-95-2 MARINE CORPS TM 2815-24/4 NOTE Very  light  score  marks  can  be  found,  but  are  acceptable  if  valve  lift  is  within  specification. Pitting or galling dictates replacement.  Refer to paragraph 3-32.2.  for valve lift measurement. c. Measure camshaft thrust plate clearance as follows: NOTE Thrust plate clearance determines camshaft end play. (1) Check thrust plate clearance using a feeler gage, refer to FIGURE 3-110. (2) New part clearance is 0.003 to 0.009 inch (0.08 to 0.23 mm).  Maximum allowable clearance is 0.015 inch (0.38 Tim).  Replace parts as necessary. FIGURE 3-110.  Measuring Thrust Plate Clearance d. Measure camshaft journals as follows: (1) Use a micrometer to take measurements, refer to FIGURE 3-111. (2) New camshaft journal diameter is 2.200 to 2.201 inches (55.87 to 55.90 mm).  Maximum wear tolerance is 0.001 inch (0.025 mm). (3) If a camshaft journal diameter is less than 2.199 inches (55.85 mm), install a new camshaft. (4) Measure  camshaft  bearing  bore  diameter  in  cylinder  block;  2.204  to  2.205  inches  (55.98  to  56.01  mm). Maximum clearance between bore and camshaft journal; 0.007 inch (0.18 mm). 3-161


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