TM 10-3930-664-24 2-18.  OIL FILTER BYPASS VALVE REPLACEMENT This task covers:  Removal, Cleaning, Inspection, and Installation INITIAL SETUP: Tools and Test Equipment: Equipment Condition: General Mechanics Tool Kit (1, App.  E) Oil cooler removed (para.  2-17) A.  REMOVAL Remove  oil  filter  bypass  valve  (1)  from  rear  of  oil  filter head (2) using a flat blade screwdriver. B.  CLEANING Clean oil filter head in accordance with paragraph 1-24. C.  INSPECTION Inspect bypass valve bore in filter head for damage. D.  INSTALLATION    1.     Insert oil filter bypass valve (1) into oil filter head (2). 2.     Using  hammer  and  punch,  drive  bypass  valve  into filter head bore until valve bottoms against step. FOLLOW-ON MAINTENANCE: Install oil cooler (para.  2-17) END OF TASK 2-79