WATER PUMP COOLANT LEAK CHECK


If a residue of the coolant draining is found on the drain hole, the vapour hole and the installation surface of the water pump, check the water pump leakage by following method.
1.Remove the alternator and power steering oil pump bracket and timing belt cover (Refer to GROUP 11A - Timing Belt ) <6G75>, (Refer to GROUP 11E - Timing Belt ) <6G72>.
2.Wipe off the residue of the coolant draining on the water pump.
3.
warning Make sure that the coolant is cold when removing the radiator cap.
Remove the radiator cap.

4.
caution Do not pressures 100 kPa or more.
Install the radiator tester and pressures at 100 kPa.
5.Hold the pressurized state for 20 minutes, and check that the water leakage from the drain hole, the vapour hole or the installation surface of the water pump.
6.Remove the radiator tester, and install the radiator cap.
7.Install the alternator and power steering oil pump bracket and timing belt cover (Refer to GROUP 11A - Timing Belt ) <6G75>, (Refer to GROUP 11E - Timing Belt ) <6G72>.
8.Warm up the engine, let it idle for 20 minutes and stop it.
9.Stop the engine.
10.Remove the alternator and power steering oil pump bracket and timing belt cover (Refer to GROUP 11A - Timing Belt ) <6G75>, (Refer to GROUP 11E - Timing Belt ) <6G72>.
11.Check that the water leakage from the drain hole, the vapour hole or the installation surface of the water pump.
12.If the water leakage is found in step 5 or 11, replace the water pump (Refer to ) <6G75>, (Refer to ) <4M4>, (Refer to ) <6G72>.
13.Install the alternator and power steering oil pump bracket and timing belt cover (Refer to GROUP 11A - Timing Belt ) <6G75>, (Refer to GROUP 11E - Timing Belt ) <6G72>.