TM   5-2815-241-34&P SECTION  XV,  COOLING  SYSTEM WEAR  LIMITS  –  INCH  (MM) PART  OR  COMPONENT Water Pump Impeller to Shaft Press  Fit Impeller to Body Clearance Fan  Hub End   Clearance Bearing to Shaft Press  Fit Idler Pulley Bearing to Shaft NEW MINIMUM 0.020 (0.51) 0.003 (0.08) NEW MAXIMUM 0.040 (1.02) 0.010 (0.25) 0.001 (0.03) WORN LIMIT 0.001 (0.03) 0.003 (0.51) THERMOSTAT   OPERATING   RANGES RANGE BEGINS OPENING FULLY OPEN Low 160°F  (71°C) 175°F  (79°C) Medium 175°F  (79°C) 185°F  (85°C) High 180°F  (82°C) 195°F  (91°C) TORQUE  LIMITS  –  FT  LB  (N•M) PART  OR  LOCATION MINIMUM MAXIMUM Water   Pump   Capscrews Water   Header   Plates Idler Pulley Water  Manifold 30  (41) 35 (47) 8 (11) 10  (14) 12 (16) 15  (20) 30  (41) 35  (47) 2-444