ARMY TM 9-2815-254-24 AIR FORCE TO 36G1-94-2 C. d. e. f. g. Remove  two  screws  (1)  securing  outlet  pipe  (2)  to  housing  (8);  remove  outlet  pipe  (2)  and  gasket  (3).  Discard gasket (3). Lift thermostat (4) from housing. Loosen two hose clamps (10) and remove bypass hose (11) from housing (8) and water pump housing. NOTE  : Note location of two shorter screws (6) for use during installation. Remove four screws (6 and 7), housing (8), and gasket (9). Discard gasket (9). If necessary, remove plugs (5) from housing (8). 3-6.2.    Inspection. N O T E If thermostat is suspected of being defective, replace thermostat. a. Inspect thermostat for excessive wear or damage. b. Inspect housing for cracks, corrosion, or other damage. 3-6.3.   Replacement. a. Replace thermostat if worn or damaged. b. Replace housing if badly corroded or damaged. 3-6.4.   Installation. a. If removed, install plugs (5, FIGURE 3-1) in housing (8). b. Apply sealing compound (FORMAGASKET2) and position housing (8) with new gasket (9) on engine block and  secure  with  four  screws  (6  and  7).  Install  two  shorter  screws  (6)  in  locations  noted  during  removal.  Tighten all four screws to 168 in-lbs (19 Nm) c. Position thermostat (4) in housing (8). 3-17