Water Pump On-Vehicle Inspection

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Gr-Fe Cooling. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. INSPECT FOR COOLANT LEAK

  2. INSPECT ENGINE WATER PUMP ASSEMBLY

Water Pump -- On-Vehicle Inspection



1. INSPECT FOR COOLANT LEAK
HINT:
  1. The sliding surface inside the engine water pump assembly is lubricated by engine coolant. As some engine coolant is discharged during normal operation, coolant residue (solids) may be found on the drain plug or the bottom of the engine water pump assembly. Engine coolant may leak if foreign matter enters the engine water pump assembly, however the sealing performance will recover when the foreign matter is pushed out or breaks into fine pieces.
  2. Before performing this inspection, check that there is no coolant leaking from any parts other than the engine water pump assembly. If there are leaks, inspect those areas.
  3. Perform this inspection when the engine is cold.

  1. Visually check the engine water pump assembly.

    1. Check that engine coolant is not dripping from the engine water pump assembly.

      HINT:
      1. If engine coolant is dripping, replace the engine water pump assembly.
      2. If engine coolant is not dripping, perform the following check.


2. INSPECT ENGINE WATER PUMP ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Gr-Fe Cooling.Cooling System.Water Pump On-Vehicle Inspection

  1. Visually check the air hole and water hole for coolant leakage.

    Text in Illustration
    *1
    		Water Hole
    *2
    		Air Hole
    If leakage is found, replace the engine water pump assembly.

  1. Turn the pulley and check that the water pump bearing moves smoothly and quietly.
    If necessary, replace the engine water pump assembly.