RM3090E _51 Engine / Hybrid System _008400 2AR-FE COOLING _0046903 WATER PUMP G

2AR-FE COOLING  WATER PUMP  ON-VEHICLE INSPECTION  


PROCEDURE

Hide 1.INSPECT FOR COOLANT LEAK

HINT:
·

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.

·

Perform this inspection when the engine is cold.



a.

Visually inspect the engine compartment for the following conditions.

i.

There is a large amount of coolant in the engine compartment or on the underside of the hood near the fan and generator V belt.


ii.

Liquid coolant is dripping from around the engine water pump assembly.


iii.

The engine coolant level in the radiator reservoir assembly is below the LOW line and there are traces of leakage around the engine water pump assembly.

HINT:
·

If any of the above conditions exist, replace the engine water pump assembly.

·

If none of the above conditions exist, perform the following inspection (inspection of the area around the engine water pump assembly).





b.

Inspect the area around the engine water pump assembly.

HINT:

Check for deposits around the drain plug of the engine water pump assembly.


i.
A280920
1,0.76 1.271,0.76 false 0.677,2.49 0.948,2.49 false 2.073,3.104 2.344,3.104 false 1.75,2.698 2.073,3.104 true 0.844,0.688 1.156,0.844 0.313,0.156 10 *1 0.396,2.427 0.708,2.583 0.313,0.156 10 *2 2.396,3.021 2.708,3.177 0.313,0.156 10 *3
*1
*2
*3
*1 Water Pump Pulley
*2 Water Pump Pulley Hole
*3 Drain Plug


Rotate the crankshaft pulley and align the water pump pulley hole with the drain plug.

HINT:
·

The drain plug is at the bottom of the engine water pump assembly.

·

Use a mirror to check that the pulley hole and drain plug are aligned.




ii.
A280922
0.635,0.24 0.844,0.24 0.844,0.24 1.177,0.698 true 0.458,0.167 0.771,0.323 0.313,0.156 10 false *1
*1
*1 Thin Paper Towel


Wrap a paper towel around an L-shaped tool such as a hexagon wrench, and insert it into the water pump pulley hole.

HINT:
·

Use a 3 mm (0.118 in.) hexagon wrench.

·

The diameter of the water pump pulley hole is 6 mm (0.236 in.).

·

The distance from the water pump pulley hole to the drain plug is 18 mm (0.709 in.).





c.
A280923

Move the hexagon wrench as shown in the illustration, and press the thin paper towel against the coolant (solid matter) adhering to the drain plug or the edge of the drain plug, and check the condition of the thin paper towel.

HINT:
·

If the thin paper towel is wet, replace the engine water pump assembly.

·

If the thin paper towel is dry, clean the area around the engine water pump assembly.




Hide 16100 2.INSPECT ENGINE WATER PUMP ASSEMBLY

a.

Remove the fan and generator V belt.

Click hereEngine / Hybrid System>2AR-FE ENGINE MECHANICAL>DRIVE BELT>REMOVAL


b.
A212133

Turn the pulley and check that the engine water pump assembly bearing moves smoothly without making a clicking noise.


c.

Install the fan and generator V belt.

Click hereEngine / Hybrid System>2AR-FE ENGINE MECHANICAL>DRIVE BELT>INSTALLATION