TM 10-3930-671-24 CRANKSHAFT END PLAY The   crankshaft   end   play   is   controlled   by   the   center flanged  bearing.    No  shims  are  required.    Using  a  dial indicator, check the crankshaft end play.  If the end play exceeds   .007"   (0.18mm)   replace   the   flanged   bearing. End  play  should  be  between  the  .0067”  (0.17mm)  and .0015" (0.04mm) limits. FLYWHEEL & FLYWHEEL HOUSING Install flywheel housing using special cap screws. NOTE Special    capscrews     having     sealing bands are used In the upper holes to mount   the   flywheel   housing   to   the cylinder block. These special capscrews  must  be  used  to  prevent oil leakage. The flywheel is machined and balanced so that the clutch face and locating counterbore will run true with its axis. Mount  an  indicator  on  the  flywheel  housing  and  check the flywheel for runout.  Caution: When checking runout remove  glow  plugs  to  allow  engine  to  be  turned  over freely. The  indicator  should  be  set  up  so  that  it  contacts  the clutch    face    or    the    vertical    surface    of    the    clutch counterbore,   then   turn   the   flywheel   at   least   one   full revolution    at    the    same    time    holding    against    the crankshaft to offset the possibility of end play. Excessive  runout  of  the  flywheel,  in  either  position,  is probably  caused  by  dirt  in  or  damage  to  counterbore locating the flywheel on the crankshaft flange.  Re-locate the   indicator   to   check   the   inside   diameter   of   the counterbore.      In   both   cases   the   maximum   indicator reading must not be more than .008" (0.20mm). When assembled, mount the indicator on the flywheel so that it contacts the housing face and turn the crankshaft, at  the  same  time  holding  against  it  to  counteract  end play.  The maximum indicator reading must not  exceed .008" (0.20mm). F-185