ENGINE,  FUEL,  EXHAUST  AND 4-6. Rocker  Arm  Assembly INSTALLATION 25. Install 12 push rods cylinder  head. Bolts must be tighten avoid bending shaft, 26. Using a 9/16” socket wrench  handle,  install COOLING   TROUBLESHOOTING and Valve Cover. (Sheet TM  10-3930-643-34 AND MAINTENANCE. 7 of 9) (16) in evenly to and socket items   (26 through 17) as an assembly, six washers (15) and bolts (14). Tighten six bolts (14) in two stages to 110 lb-ft and 165 lb-ft. NOTE It is necessary to adjust the rocker  arm  assembly  before completing  the  installation procedure. Go to sheet 8 4-57