4 . Remove pump from engine. 5 . Remove gasket and clean surface. Valve Rocker Arm Cover Removal Figure 12-5 Remove or Disconnect 1 . Valve rocker arm cover bolts. 2 . Valve rocker arm covers. 3 . Gaskets. Components > 1. Gasket-Thermostat Housing 2. Thermostat Housing Spacer 3. Thermostat Assembly 4. Housing-Thermostat 5. Bolt 6. ECT Sensor-SECM 7. Plug 8. Fitting 9. Water Temp Sender 1 . Remove bolts. Remove thermostat housing and gasket. 2 . Remove failed thermostat. 3 . Clean both mounting surfaces, engine and thermostat housing of any gasket material. Figure 12-5 Valve Rocker Arm Cover Thermostat Removal Start By: a . Draining coolant from radiator. b .
Removing upper radiator hose from thermostat housing. G643 (E) Service Manual Chapter 3. Engine Mechanical System 63