TM 10-3930-671-24 2. Examine  the  camshaft  thrust  plate  carefully  for scoring  and  wear  and  if  any  indication  of  either shows.  a new thrust plate should be assembled. 3. Assemble the injection pump drive gear with key and  cam  gear  to   the   cam   shaft   by   driving   or pressing  each  on,  at  the  same  time  holding  the camshaft  forward  with  suitable  bar  through  the fuel  pump  opening  in  the  block  so  there  is  no possibility of the camshaft bumping the expansion plug at the rear end and forcing it out of position, thus causing an oil leak. Assemble camshaft nut and torque to specification (See torque specifications section).  Do not use impact wrench or over torque cam nut. Check camshaft end play as shown in illustration.  Refer to limits and clearance section for correct dimension. CAUTION NEVER USE THE CAMSHAFT NUT TO PRESS THE GEAR ONTO THE CAMSHAFT.        This    will    break    the threaded end off cast Iron camshafts. 4 Drive  the  crank  gear  on  the  shaft  making  sure that  the  marked  teeth  on  the  cam  gear  straddle the   marked   tooth   on   the   crank   gear,   which assures   you   of   the   crankshaft   and   camshaft being in time. F-184

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