Download Fig. 2 Balance shaft drive & camshaft drive exploded view. 1. Drain coolant from cold engine by setting heater control lever to warm position and unscrew drain plug 2. Disconnect negative battery cable. 3. Remove air cleaner assembly. 4. Remove lower radiator hose. 5. Remove accessory drive belts. 6. Remove upper and lower front timing belt covers Water Pump Assembly 15. Remove water pump retaining bolts and remove water pump. 16. Exchange parts on water pump as necessary. NOTE: Check the condition of the balance shaft and the camshaft seals. Replace as necessary.