TM  5-2815-241-34&P GEARCASE   COVER   INSTALLATION   -   CONTINUED ACTION LOCATION ITEM REMARKS 7.  Bottom  of  cylinder block  (1) Gearcase  cover  (2) Using  24-inch  straightedge  and  thickness gage, make sure bottom of gearcase cover and  oil  pan  mounting  surface  are  flush  within 0.004 inch (0.10 mm). NOTE Before performing step 8, coat seals with lubricating oil. 8.  Gearcase  cover  (2) New   crankshaft seal  (3) a. Using   16-ounce   ball-peen   hammer,   ST- 1259  seal  mandrel,  and  ST-1260  seal pilot, put in. b. Using  depth  gage,  check  clearance  of crankshaft  seal  with  boss  on  gearcase cover. Minimum  clearance  Is  0.030  Inch (0.78  mm).  Seal  should  not  touch bottom  of  bore. 9. 10. Camshaft   support   (6) 11. New  accessory  drive seal  (4)  and  oil slinger   (5) Using   16-ounce   ball-peen   hammer,   ST- 1173  seal  mandrel,  and  ST-386  pulley assembly tool, put in. ST-1173  seal  mandrel  will  put  In  seal to  required  depth. a. Put in and hold against stop. b. Using  thickness  gage,  measure  distance between  camshaft  support  and  gearcase cover. Clearance  should  be  0.008  to  0.013 Inch (0.20 to 0.33 mm). Shim as needed. c.  Take  out. NOTE Before performing step 11, coat packing with lubricating oil. Camshaft   support (6),  new  shims  (7) and  new  packing  (8) Put  in. 2-92