TM  9-2815-202-34 5-37.  CYLINDER  HEAD  REPAIR  (Cont) (9) l l Using depth gage (102), measure exhaust valve protrusion beyond fire deck  of  cylinder  head.  If  out  of  limits, regrind  or  replace  insert. NOTE Before  installing  cam  followers, immerse in Cindol 1705 oil heated to 100°F-125°F (38 °C-52^oC) for one hour to insure initial lubrication of cam roller pins and bushings. Rotate cam rollers during soaking period to purge air from bushing and roller area. Install  used  cam  followers  and push rods in their original locations. (19) (20) (21) (22) Assemble lower spring seat (26), cam follower spring (24), upper spring seat (25), and locknut (15) on twelve push rods (16). Install  twelve  cam  follower  spring  retainers (26) in cam follower bores from top of cylinder  head. Slide twelve push rod (16) assemblies in position from bottom of cylinder head. NOTE Install  cam  followers  with  oil  hole directed away from exhaust valves. Slide twelve cam followers (23) from  bottom  of  cylinder  head. in position 5-60 C h a n g e     1