Fuel Injector Installation

Install 4 new injection nozzle seats to the cylinder head.

Apply a small amount of clean engine oil to 4 new O-rings.

Install an O-ring to each injector as shown in the illustration.

Insert the 4 injectors into the cylinder head.

NOTICE:

1. Insert the injector until it touches the injection nozzle seat surface.
   
2. After installing the injector to the cylinder head, the O-ring may prevent the injector from fully seating. If so, pull out the injector and reinstall it.
   
3. Always return an injector to the same place it was removed from.
   

For an injector that has been replaced with a new injector, register the injector compensation code (LandCruiser RM0000012XK0ARX.html).

Temporarily install 4 new washers and the 4 No. 1 nozzle holder clamps with the 4 bolts.

HINT:

Apply a small amount of engine oil to the threads and under the heads of the clamp bolts.

NOTICE:

1. 
   
2. The fork portion of the nozzle holder clamp must be set on the injector.
   
3. Before tightening the bolts, check that the No. 1 nozzle holder clamp is set properly.
   
4. When installing the clamp bolts, first tighten them by hand until they cannot be turned further. Then, tighten the bolts to the specified torque in the following step.
   
5. When tightening the bolts, pay attention so as not to tilt the bolt and the clamp.
   
6. Do not reuse the washer.
   
7. If the nozzle leakage pipe is accidentally tightened beyond the torque specification, it must be replaced.
   

   Text in Illustration

   *1	Nozzle Clamp Holder

Temporarily install the 4 injection pipes with the union nuts.

HINT:

To position the injectors, loosely tighten the union nut.

Check the nozzle leakage pipe. Check that there are no scratches or dents on the 5 union seal surfaces.
If scratches or dents are present, replace the nozzle leakage pipe.

Set the leakage pipe and 5 new gaskets in place.

Apply a small amount of oil to the 4 injector hollow screws and union bolt.

Temporarily install the leakage pipe with the 4 injector hollow screws and union bolt.

Tighten the 4 holder clamp bolts.

Torque:

22 N*m{220 kgf*cm, 16 ft.*lbf}

Tighten the 4 hollow screws in order from 1 to 4.

Torque:

16 N*m{163 kgf*cm, 12 ft.*lbf}

NOTICE:

If a hollow screw is accidentally tightened beyond the torque specification, it must be replaced.

Tighten the union bolt.

Torque:

13 N*m{127 kgf*cm, 9 ft.*lbf}

NOTICE:

If the union bolt is accidentally tightened beyond the torque specification, it must be replaced.

Remove the 4 injection pipes.

Check that there are no leaks from the nozzle leakage pipe connection.

1. Install the gasket and No. 2 nozzle leakage pipe to the cylinder head with SST (check valve).
   

   Part No.:

   23762-27010 (No. 2 nozzle leakage pipe)
   

   90904-30012 (Gasket)
   

   SST

   09280-00010
   

   Torque:

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

2. Apply a small amount of soapy water (or other fluid for detecting fuel leakage) on the nozzle leakage pipe connection.
   





3. Install SST (turbocharger pressure gauge) to the fuel return side of the leakage pipe, maintain 100 kPa (1.0 kgf/cm², 15 psi) of pressure for 60 seconds and check that no bubbles form.
   

   SST

   09992-00242
   

4. After checking for fuel leaks, wipe off the soapy water from the leakage pipe connection.
   

5. Remove SST, the No. 2 nozzle leakage pipe and gasket.
   

   NOTICE:

   Never reinstall the disassembled union bolt to the engine.

Install 4 new No. 3 cylinder head cover gaskets to the cylinder head cover in the directions shown in the illustration.

NOTICE:

1. Do not install the No. 3 cylinder head cover gaskets at an angle.
   
2. Check that there is no foreign matter at the installation location of the No. 3 cylinder head cover gaskets.
   

Remove any old seal packing (FIPG material) from the cylinder head.

Apply seal packing to the specific areas shown in the illustration.

Seal packing:

Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent

NOTICE:

1. Remove any oil from the contact surface.
   
2. Install the head cover within 3 minutes after applying seal packing.
   
3. Do not start the engine for at least 2 hours after installing the seal packing.
   

Install a new cylinder head cover gasket and the cylinder head cover with the 10 bolts and 2 nuts.

Torque:

9.0 N*m{92 kgf*cm, 80 in.*lbf}

Install 4 new nozzle holder seals.

Install the No. 2 cylinder head cover with the 4 bolts.

Torque:

for bolt A:

18 N*m{184 kgf*cm, 13 ft.*lbf}

for bolt B:

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

Attach the 2 wire harness clamps and connect the wire harness to the No. 2 cylinder head cover.

Connect the 4 injector connectors.

Connect the 2 ventilation hoses and install the ventilation pipe to the cylinder head cover to the cylinder head sub-assembly with the bolt.

Torque:

18 N*m{184 kgf*cm, 13 ft.*lbf}

Type A
Connect the No. 3 turbo water hose and No. 4 turbo water hose to the ventilation pipe, and slide the 2 clamps to secure the hose.

Temporarily install the No. 2 nozzle leakage pipe with the 4 bolts.

Temporarily install a new gasket and the union bolt.

Tighten the 4 bolts and union bolt.

Torque:

for bolt:

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

for union bolt:

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

Connect the 3 fuel hoses.

Check and clean the oil filter installation surface.

Apply clean engine oil to the gasket of a new oil filter.

Lightly screw the oil filter into place by hand. Tighten it until the gasket contacts the seat.

Using SST, tighten the oil filter. Depending on the space available, choose from the following.

SST

09228-07501

1. If enough space is available, use a torque wrench to tighten the oil filter.
   

   Torque:

   17 N*m{173 kgf*cm, 13 ft.*lbf}

2. If enough space is not available to use a torque wrench, tighten the oil filter 3/4 of a turn by hand or with a common wrench.
   

Temporarily install the No. 4 injection pipe with the union nuts.

Install the bolt.

Torque:

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

NOTICE:

1. If an injection pipe clamp is removed from the No. 4 injection pipe, replace the injection clamp with a new one.
   
2. Make sure that the inner-rubbers of the injection pipe fit inside the clamps.
   
3. When installing the pipe, check that the inner-rubbers and the clamps are in their proper positions.
   

Using a 17 mm union nut wrench, tighten the injection pipe union nut on the common rail side.

Torque:

35 N*m{357 kgf*cm, 26 ft.*lbf}

NOTICE:

Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench (LandCruiser RM000003YMD00TX.html).

Using a 17 mm union nut wrench, tighten the injection pipe union nuts on the injector side.

Torque:

35 N*m{357 kgf*cm, 26 ft.*lbf}

NOTICE:

Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench (LandCruiser RM000003YMD00TX.html).

Install the manifold stay with vacuum switching valve with the 2 bolts and connect the No. 3 vacuum transmitting hose and No. 4 vacuum transmitting hose.

Torque:

19 N*m{194 kgf*cm, 14 ft.*lbf}

NOTICE:

Make sure the vacuum hose color matches the connection area color.

w/ EGR Cooler:
Connect the No. 3 vacuum transmitting hose.

w/ EGR System:
Connect the No. 2 vacuum transmitting hose and No. 3 vacuum transmitting hose.

NOTICE:

1. Make sure the vacuum hose color matches the connection area color.
   
2. Push on the hose until it reaches the bent part of the pipe.
   

Connect the No. 1 vacuum transmitting hose.

Connect the vacuum switching valve connector.

1. w/o EGR System:
   Connect the connector.
   

2. w/ EGR System without EGR Cooler:
   Connect the 2 connectors.
   

3. w/ EGR System with EGR Cooler:
   Connect the 3 connectors.
   

Set a new gasket on the intake manifold.

NOTICE:

Make sure the claw of the gasket face the intake manifold as shown in the illustration.

Install the intake air connector with diesel throttle body with the 3 bolts.

Torque:

20 N*m{204 kgf*cm, 15 ft.*lbf}

NOTICE:

Tighten the bolts in the order shown in the illustration.

Connect the throttle position sensor connector.

for LHD:
Connect the engine wire with the clamp and install the 2 bolts.

Torque:

for bolt A:

13 N*m{131 kgf*cm, 9 ft.*lbf}

for bolt B:

22 N*m{220 kgf*cm, 16 ft.*lbf}

for RHD:
Connect the engine wire with the bolt.

Torque:

13 N*m{131 kgf*cm, 9 ft.*lbf}

Temporarily install the air connector stay with the 3 bolts.

Tighten the bolt labeled A.

Torque:

20 N*m{204 kgf*cm, 15 ft.*lbf}

Tighten the 2 bolts labeled B.

Torque:

20 N*m{204 kgf*cm, 15 ft.*lbf}

Temporarily install the No. 1, No. 2 and No. 3 injection pipes with the union nuts.

Install the No. 2 and No. 3 injection pipe clamps with the 2 bolts and 2 nuts as shown in the illustration.

Torque:

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

HINT:

If the painted mark on the No. 2 injection pipe has disappeared, use the illustration as a reference to install the clamps.

Using a 17 mm union nut wrench, tighten the injection pipe union nuts on the common rail side.

Torque:

35 N*m{357 kgf*cm, 26 ft.*lbf}

NOTICE:

Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench (LandCruiser RM000003YMD00TX.html).

Using a 17 mm union nut wrench, tighten the injection pipe union nuts on the injector side.

Torque:

35 N*m{357 kgf*cm, 26 ft.*lbf}

NOTICE:

Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench (LandCruiser RM000003YMD00TX.html).

Install the throttle body bracket with the 2 bolts.

Torque:

20 N*m{204 kgf*cm, 15 ft.*lbf}

Install the gas filter with gas filter bracket with the bolt.

Torque:

20 N*m{204 kgf*cm, 15 ft.*lbf}

Connect the vacuum hose.

Connect the No. 1 intake pipe with the air hose and install the 2 bolts.

Torque:

20 N*m{204 kgf*cm, 15 ft.*lbf}

Tighten the 2 clamps of the No. 1 air hose.

Torque:

6.5 N*m{66 kgf*cm, 58 in.*lbf}

Tighten the clamp of the intercooler air hose.

Torque:

6.5 N*m{66 kgf*cm, 58 in.*lbf}

Connect the vacuum hose to the manifold absolute pressure sensor connector.

Connect the 3 connectors to the intake air temperature sensor, throttle control motor and manifold absolute pressure sensor.

Attach the 2 clamps.

Connect the No. 4 vacuum transmitting pipe with the bolt.

Torque:

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

Connect the inlet heater water hose with the bolt.

Torque:

26 N*m{260 kgf*cm, 19 ft.*lbf}

Install the electric EGR control valve assembly (LandCruiser RM000002RK6044X.html).

Perform registration of the injector compensation code (LandCruiser RM0000012XK0ARX.html).

Perform registration of pilot quantity learning (LandCruiser RM0000012XK0ARX.html).

Tighten the radiator drain cock plug by hand.

Tighten the cylinder block drain cock plug.

Torque:

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

Fill the radiator with TOYOTA Super Long Life Coolant (SLLC) to the B line of the reservoir tank.

Standard Capacity:

Item		Specified Condition
for Automatic Transmission	w/ Rear Heater	14.9 liters (15.7 US qts, 13.1 Imp. qts)
	w/o Rear Heater	13.1 liters (13.8 US qts, 11.5 Imp. qts)
for Manual Transmission	w/ Rear Heater	15.0 liters (15.8 US qts, 13.2 Imp. qts)
	w/o Rear Heater	13.2 liters (13.9 US qts, 11.6 Imp. qts)

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 consists of a combination of low phosphates and organic acids).
   
2. Please contact your TOYOTA dealer for further details.
   
3. for Cold Area Specification Vehicles:
   Please contact any authorized TOYOTA dealer or repairer or another duly qualified and equipped professional for further details.
   

NOTICE:

Never use water as a substitute for engine coolant.

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 B line, add TOYOTA SLLC to the B line.

Install the radiator reservoir cap.

Using a wrench, install the vent plug.

Torque:

2.0 N*m{20 kgf*cm, 18 in.*lbf}

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.
      

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

   CAUTION:

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

After the coolant cools down, check that the coolant level is at the FULL line.
If the coolant level is below the FULL line, add TOYOTA SLLC to the FULL line.

Using the hand pump mounted on the fuel filter cap, bleed the air from the fuel system. Continue pumping until the pump resistance increases.

NOTICE:

1. The maximum hand pump pumping speed is 2 strokes per second.
   
2. The hand pump must be pushed with a full stroke during pumping.
   
3. When the fuel pressure at the supply pump inlet port reaches a saturated pressure, the hand pump resistance increases.
   
4. If pumping is interrupted during the air bleeding process, fuel in the fuel line may return to the fuel tank. Continue pumping until the hand pump resistance increases.
   
5. If the hand pump resistance does not increase despite consecutively pumping 200 times or more, there may be a fuel leak between the fuel tank and fuel filter, the hand pump may be malfunctioning, or the vehicle may have run out of fuel.
   
6. If air bleeding using the hand pump is incomplete, the common rail pressure does not rise to the pressure range necessary for normal use and the engine cannot be started.
   

Start the engine.

NOTICE:

1. Even if air bleeding using the hand pump has been completed, the starter may need to be cranked for 10 seconds or more to start the engine.
   
2. Do not crank the engine continuously for more than 20 seconds. The battery may be discharged.
   
3. Use a fully-charged battery.
   

1. When the engine can be started, proceed to the next step.
   

2. If the engine cannot be started, bleed the air again using the hand pump until the hand pump resistance increases (refer to the procedures above). Then start the engine.
   

Turn the ignition switch off.

Connect the intelligent tester to the DLC3.

Turn the ignition switch on (IG) and turn the intelligent tester on.

Clear the DTCs (LandCruiser RM000000PDK1DJX.html).

Start the engine.*1

Enter the following menus: Powertrain / Engine and ECT / Active Test / Test the Fuel Leak.*2

Perform the following test 5 times with on/off intervals of 10 seconds: Active Test / Test the Fuel Leak.*3

Allow the engine to idle for 3 minutes or more after performing the Active Test for the 5th time.

HINT:

When the Active Test "Test the Fuel Leak" is used to change the pump control mode, the actual fuel pressure inside the common rail drops below the target fuel pressure when the Active Test is off, but this is normal and does not indicate a pump malfunction.

Enter the following menus: Powertrain / Engine and ECT / DTC.

Read Current DTCs.

Clear the DTCs (LandCruiser RM000000PDK1DJX.html).

HINT:

It is necessary to clear the DTCs as DTC P1604 or P1605 may be stored when air is bled from the fuel system after replacing or repairing fuel system parts.

Repeat steps *1 to *3.

Enter the following menus: Powertrain / Engine and ECT / DTC.

Read Current DTCs.

OK:

No DTCs are output.

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

Warm up the engine.

Using the radiator cap tester, increase the pressure inside the radiator to 123 kPa (1.3 kgf/cm², 18 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 heater core, cylinder block and head.

Check that there are no leaks from any part of the fuel system when the engine is stopped. If there is fuel leakage, repair or replace parts as necessary.

Start the engine and check that there are no leaks from any part of the fuel system. If there is fuel leakage, repair or replace parts as necessary.

Disconnect the return hose from the common rail.

Start the engine and check for fuel leaks from the return pipe.
If there is fuel leakage, replace the common rail.

Connect the intelligent tester to the DLC3.

Start the engine and turn the intelligent tester on.

Select the Fuel Leak test from the Active Test mode on the intelligent tester.

If the intelligent tester is not available, fully depress the accelerator pedal quickly. Increase the engine speed to the maximum and maintain that speed for 2 seconds. Repeat this operation several times.

Check that there are no leaks from any part of the fuel system.

NOTICE:

A return pipe leakage of less than 10 cc (0.6 cu in.) per minute is acceptable.

Reconnect the return hose to the common rail.

Start the engine. Make sure that there are no oil leaks from the areas that were worked on.

Warm up the engine, stop the engine and wait 5 minutes. The engine oil level should be between the dipstick low level mark and full level mark.
If low, check for leakage and add oil up to the full level mark.

NOTICE:

Do not fill engine oil above the full level mark.

HINT:

A certain amount of engine oil will be consumed while driving. In the following situations, engine oil consumption may increase, and engine oil may need to be refilled in between oil maintenance intervals.

1. When the engine is new, for example directly after purchasing the vehicle or after replacing the engine.
   
2. If low quality engine oil or oil of an inappropriate viscosity is used.
   
3. When driving at high engine speed or with a heavy load, when towing, or when driving while accelerating or decelerating frequently.
   
4. When leaving the engine idling for a long time, or when driving frequently through heavy traffic.