6. COOLING SYSTEM 6.3 Disassembly (Reverse the procedure below for assembly) 1) Remove the alternator. See 4.2.2. 1) in Chapter 4. 2) Remove the fan, V-belt and pulley. See 4.2.2. 2) in Chapter 4. 3) Remove the cooling water pump. (Point 1, in below 6.4) 4) Remove the thermostat. (Point 2 in below 6.4) 6.4 Servicing Points Point 1 Disassemble-Reassemble: Check to see that the cooling water pump bearing is free from abnormal noise, sticking or play and water leakage from the bearing. If replacement is necessary, replace the whole cooling water pump ass’y. [NOTICE] Replace the O-ring of the cooling water pump with new one when disassembling.
And, be sure to use the special O-ring for each engine model, because the material is different, although the dimension is the same as a com- mercial part. (Refer to the right figure.) Point 2 Disassemble: Check the thermostat function. See 2.7 in Chapter 2 for the inspection method. 82E-5 – 98E-5 SERIES 6-3