TM 10-3930-671-24 After   all   honing   operations   are   complete,   thoroughly wash the bores with soap, hot water, and a stiff brush to remove all traces of grit.  Kerosene or other solvents will not  remove  the  grit.    Rinse  the  block  with  clean,  clear water and dry with compressed air. When you have finished cleaning the block, run a clean, dry  paper  towel  through  the  bores.     The   paper   towel should come out clean. If  not,  the  bores  must  be  rewashed.    As  soon  as  the bores have dried, lubricate with engine oil immediately to prevent rust.  This completes the honing operation. PISTONS Check  the  pistons  for  excessive  ring  groove  wear,  and replace any that exceed the allowable limits in our Limits and Clearance Data. The  cylinder  walls  and  pistons  must  be  perfectly  clean and    dry    when    fitting    pistons    in    the    cylinder    bores. Pistons should be fitted with the block and piston at room temperature 68°to 70°F(20°C 21°C). PISTON FIT ON STANDARD PISTONS (with 5 to 10 lbs (2.3 to 4.5 kg) Pull) TMD series .003" (0.08mm) Check  the  piston  fit  in  the  bore  using  a  half-inch  wide strip  of  feeler  stock  (of  the  thickness  specified  in  the Limits and Clearance Chart) the feeler being attached to a small scale of approximately 15 lbs (7 kg) capacity. F-175