Water Pump Installation

Install a new gasket and the engine water pump assembly with the 10 bolts.

Torque:

for bolt A:

26 N*m{265 kgf*cm, 19 ft.*lbf}

for bolt B:

13 N*m{133 kgf*cm, 10 ft.*lbf}

Text in Illustration

	Bolt A
	Bolt B

Temporarily install the belt tensioner with the 3 bolts.

HINT:

Make sure the flanges of the bolts are contacting the tensioner surface.

Install the tensioner with the 3 bolts.

Torque:

for bolt A:

43 N*m{438 kgf*cm, 32 ft.*lbf}

for bolt B:

40 N*m{408 kgf*cm, 30 ft.*lbf}

for bolt C:

21 N*m{214 kgf*cm, 15 ft.*lbf}

Text in Illustration

	Bolt A
	Bolt B
	Bolt C

Install the spacer and pulley with the bolt.

Torque:

43 N*m{438 kgf*cm, 32 ft.*lbf}

Install a new O-ring.

Install the engine oil level dipstick guide with the bolt.

Torque:

8.0 N*m{82 kgf*cm, 71 in.*lbf}

Install the engine oil level dipstick.

Install the fan pulley to the engine water pump.

Place the shroud together with the fluid coupling fan between the radiator and engine.

NOTICE:

Be careful not to damage the radiator core.

Install the coupling fan to the water pump with the 4 nuts. Tighten the nuts as much as possible by hand.

Attach the shroud's claws to the radiator as shown in A in the illustration.

Install the fan shroud with the 2 bolts.

Torque:

5.0 N*m{51 kgf*cm, 44 in.*lbf}

Connect the reservoir hose to the radiator tank upper.

Install the fan and generator V belt (HILUX_TGN26 RM000000YMN01PX.html).

Tighten the 4 nuts of the fluid coupling fan.

Torque:

25 N*m{255 kgf*cm, 18 ft.*lbf}

Connect the air pump inlet to the radiator with the bolt.

Torque:

8.5 N*m{87 kgf*cm, 75 in.*lbf}

Connect the radiator hose outlet to the radiator.

Connect the radiator hose inlet to the radiator.

Tighten all the plugs and fill the radiator with TOYOTA Super Long Life Coolant (SLLC).

Torque:

for Cylinder block drain cock plug:

13 N*m{130 kgf*cm, 9 ft.*lbf}

Standard Capacity:

Item	Specified Condition
A/T	8.1 liters (8.6 US qts, 7.1 Imp. qts)
M/T	7.8 liters (8.2 US qts, 6.9 Imp. qts)

NOTICE:

Never use water as a substitute for engine coolant.

HINT:

1. TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids).
   
2. Please contact your TOYOTA dealer for further details.
   

Fill the radiator reservoir with TOYOTA SLLC to the F line.

Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
If the coolant level drops below the F line, add TOYOTA SLLC to the F line.

Install the radiator cap.

Bleed air from the cooling system.

1. Warm up the engine until the thermostat opens.
   While the thermostat is open, circulate the coolant for several minutes.
   

2. Maintain the engine speed at 2500 to 3000 rpm.
   

3. Press the inlet and outlet radiator hoses several times by hand to bleed air.
   

   CAUTION:

   When pressing the radiator hoses:

   1. Wear protective gloves.
      
   2. Be careful as the radiator hoses are hot.
      
   3. Keep your hands away from the radiator fan.
      

Stop the engine and wait until the coolant cools down to ambient temperature.

CAUTION:

Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

Check the coolant level in the radiator reservoir.
If the coolant level is below the L line, add SLLC up to the reservoir F line.

Fill the radiator with coolant and attach a radiator cap tester.

Warm up the engine.

Using a radiator cap tester, increase the pressure inside the radiator to 118 kPa (1.2 kgf/cm², 17 psi), and check that the pressure does not drop.
If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the cylinder block and cylinder head.