Quantcast Cylinder block - TM-5-2815-241-34P_182

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TM   5-2815-241-34&P CYLINDER  BLOCK  -  CONTINUED ACTION LOCATION ITEM REMARKS REPAIR  -  CONTINUED NOTE Steps  39  thru  48  are  provided  for  cylinder  block  tagged  for  main  bearing  reaming. 41. Cylinder block (1) Main  bearing caps  (2) a. Using wide flat mill file, remove 0.002 to 0.003  inch  (.051  to  .076  mm)  of  stock from  milled  seating  surface  of  main bearing  caps  which  are  determined  to  be distorted. If replacement cap is being used, removing  this  material  is  not necessary. b. Remove  two  undamaged  main  bearing caps, preferably one from each end of block or as far apart as possible. 42. 43. 44. ST-1177  boring tool  (3) Main  bearing caps  (2) Insert  proper  centering  rings,  with  oiler  up, in  two  undamaged  bores,  and  tap  with plastic-faced  hammer  to  seat. Using 0 to 600 ft lb (0 to 813.6 N•m) torque wrench,  reinstall  and  torque  to specifications. See  procedure,  step  14. NOTE If centering ring must be installed where replacement main bearing caps have been sub- stituted, limit torque to 10 ft lb (14 N•m). ST-1177  boring tool  (3) CAUTION a. Install  with  proper  cutting  tools. b. Using  lubricating  oil,  lubricate  cutting tools  and  main  bearing  bores. Be sure tool bit cutting edge is turned in the same direction as 1/2-inch portable electric drill   rotation. Keep ST-1177 boring tool and main bearing bores well lubricated during all boring operations. 2-160 Change  1


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