Coolant pump [Toyota Corona T190]

Removal the coolant pump

1. Drain the coolant.

(4A-FE, 7A-FE)

2. Remove the following parts (see items 1,2,3,5 and 6 of subsection "Removal the timing belt").

• a) Generator drive belt and coolant pump pulley.
• b) Cylinder head cover.
• c) Protective covers No.2 and No.3 of the timing belt.
• d) Protective cover for electrical wiring.

3. Remove the dipstick assembly.

4. Remove the coolant pump and coolant inlet pipe No.2, observing the following sequence:

• a) Disconnect the coolant temperature sensor connector.
• b) Unscrew the two nuts securing the inlet pipe No.2 to the cylinder head.
• c) Unscrew the three pump mounting bolts and remove the coolant pump together with the supply pipe No.2.
• d) Remove the sealing ring gasket.
• d) Separate the pump from the inlet pipe No.2 as shown in the figure.

(3S-FE, 3S-GE, 4S-FE)



2. Remove the timing belt (Section "Timing Belt", subsection "Removing the Timing Belt").

Note: Do not remove the camshaft, oil pump and crankshaft timing pulleys.

3. Loosen the bolt and remove the generator adjustment bracket.





4. Remove the coolant pump and cover assembly.

• a) Unscrew the two nuts of the coolant bypass pipe.

• b) Unscrew the three bolts in the sequence shown in the figure.

• c) Disconnect the coolant pump cover from the bypass pipe and remove the coolant pump and cover assembly.

• d) Remove the gasket and two O-rings from the coolant pump and bypass pipe.

5. Unscrew the three bolts, remove the coolant pump and gasket.





(2C, 2C-T)

1. Drain the coolant.

2 Remove the timing belt.

3. Remove the toothed pulley of the fuel injection pump drive and unscrew the fuel injection pump mounting nuts.

4. Remove the bolts and coolant pump.



(5E-FE)

2. Remove the generator.

3. Remove the intake manifold bracket by unscrewing the two bolts and nut.

4. Remove the cooling system inlet pipe.

• a) Disconnect the following hoses:
  • (1) Liquid pump inlet hose from thermostat side;
  • (2) Coolant bypass hose.

• 6) Loosen the bolt, remove the liquid pump inlet hose and O-ring.

5. Remove the dipstick guide and generator adjusting bracket.



6. Remove the coolant pump by unscrewing the bolt and two nuts.

Checking the coolant pump

1. Visually check for coolant leaks through connections and air vent.

2. Turn the pulley and make sure the pump shaft rotates easily and quietly. If there are any faults, replace the pump assembly.

Installing a Coolant Pump

(4A-FE, 7A-FE)

1. Connect the pump to the supply pipe No.2.

2. Install the pump assembly together with the inlet pipe No.2 onto the engine, installing a new O-ring on the cylinder block and a new gasket on the cylinder head, making sure that the marking protrusion of this gasket is facing upwards, as shown in the figure.



Install and tighten the pump assembly mounting bolts and nuts (along with inlet pipe No.2).

• Tightening torque:
  • bolts - 14 Nm
  • nuts - 15 Nm

3. Install the dipstick assembly, first installing a new O-ring onto the guide.



Tighten the mounting bolt (9.3 Nm)

4. Install the following parts (see paragraphs 9, 11, 12, 13 and 14 of subsection "Installing the timing belt"):

• a) Protective cover for electrical wiring.
• b) Protective covers No.2 and No.3 of the timing belt.
• c) Cylinder head cover.
• d) Generator drive belt and coolant pump pulley.

(3S-FE, 3S-GE, 4S-FE)

5. Install the coolant pump onto the cover using a new gasket and tightening the three bolts.

• Tightening torque - 9 Nm

6. Install the coolant pump and cover assembly.

• a) Install a new O-ring and gasket onto the coolant pump.

• b) Install a new O-ring onto the coolant bypass pipe.

• c) Apply soapy water to the O-ring of the coolant bypass pipe.
• d) Connect the bypass pipe to the coolant pump.

• d) Install the coolant pump and tighten the three bolts in the sequence shown in the figure.
• Tightening torque - 9 Nm

• e) Tighten the two coolant bypass pipe nuts.
• Tightening torque - 9 Nm

7. Install the generator adjustment bracket by tightening the bolt.

• Tightening torque - 27 Nm

8. Install the timing belt (see subsection "Installing the timing belt").

[The original text is posted on www.toyotaman.ru]

(2C, 2C-T)

9. Install the new gasket and coolant pump. Tighten the mounting bolts.

• Tightening torque - 18 Nm

Note: Bolt lengths (in mm) are shown in the figure.

10. Install the fuel injection pump and fuel injection pump drive toothed pulley.

11. Install the timing belt.

(5E-FE)

12. Install the coolant pump.

• a) Remove the old gasket material and be careful not to drip oil onto the surface. Clean both seal surfaces with a non-residue solvent.
• b) Apply sealant to the coolant pump recess.

Note:

• Do not apply too much sealant.
• The mating parts must be assembled within 5 minutes after applying the sealant. Otherwise, the material must be removed and reapplied
• Do not add coolant within 2 hours after installation is completed.

• c) Install the coolant pump by tightening the bolt and two nuts.
• Tightening torque - 19 Nm

13. Install the dipstick guide and generator adjusting bracket.

• a) Install a new O-ring onto the dipstick guide.

• b) Apply a soapy water solution to the O-ring
• c) Insert the dipstick guide and tighten it with the generator adjusting bracket mounting bolt and install the dipstick guide clamp.
• Tightening torque - 19 Nm
• d) Install the oil dipstick.

14. Install the coolant pump inlet hose.

• a) Install a new O-ring on the thermostat side of the inlet hose.
• b) Apply a small amount of soapy water to the O-ring.

• c) Install the inlet hose and tighten the bolts.

Note: Incorrect installation of the inlet hose at an angle or with a twist may cause damage to the O-ring.

• Tightening torque - 8 Nm

• d) Connect the following hoses:
  • (1) Liquid pump inlet hose from thermostat side;
  • (2) Coolant bypass hose.

15. Install the intake manifold bracket by tightening the bolt and nut.

• Tightening torque - 19 Nm

16. Install the generator.

(All engines)

17. Fill the system with coolant (see section "Maintenance and general check and adjustment procedures").

18. Start the engine and check for coolant leaks.