CAUTION / NOTICE / HINT
Note
When replacing the parts in the following chart (A), replace the No. 1 injection pipe sub-assembly, No. 2 injection pipe sub-assembly and/or fuel inlet pipe sub-assembly with new ones.
| Replaced Parts (A) | Pipes Requiring New Replacement |
|---|---|
| Injector assembly (including shuffling the injector assemblies between the cylinders) |
|
| Supply pump assembly | Fuel inlet pipe sub-assembly |
|
|
After removing the No. 1 injection pipe sub-assembly, No. 2 injection pipe sub-assembly and/or fuel inlet pipe sub-assembly, clean them with a brush and compressed air.
The injector assembly is a precision instrument. Do not use the injector assembly if it is struck or dropped.
The supply pump assembly is a precision instrument. Do not use the supply pump assembly if it is struck or dropped.
Hold the supply pump assembly itself during removal and installation. Do not hold the pre-stroke control valve or fuel pipe, etc.
Make sure foreign matter does not enter the fuel path.
PROCEDURE
INSTALL CAMSHAFT
| *1 | Valve Rocker Arm Sub-assembly |
| *2 | Valve Stem Cap |
| *3 | Valve Lash Adjuster Assembly |
Check that the valve rocker arm sub-assembly is firmly set to the valve lash adjuster assembly.
Apply a light coat of engine oil to the camshaft journals of the cylinder head sub-assembly and the thrust portion of the camshaft.
| *a | Paint Mark |
| *b | Timing Mark |
Align the paint mark of the No. 2 chain sub-assembly and timing mark of the camshaft timing sprocket, and install the camshaft timing sprocket to the No. 2 chain sub-assembly.
Tech Tips
Make sure the timing mark of the camshaft timing sprocket face the front side.
Align the knock pin of the No. 1 camshaft to the groove of the sprocket and install the No. 1 camshaft to the camshaft timing sprocket, and set the bolt.
| *a | Paint Mark |
| *b | Timing Mark |
Align the paint mark of the No. 2 chain sub-assembly and timing mark of the camshaft timing sprocket, and install the camshaft timing sprocket to the No. 2 chain sub-assembly.
Tech Tips
Make sure the timing mark of the camshaft timing sprocket face the front side.
Align the knock pin of the No. 2 camshaft to the groove of the sprocket and install the No. 2 camshaft to the camshaft timing sprocket, and set the bolt.
Tech Tips
Glove is at the rear end of the No. 2 camshaft.
| *a | Glove |
| *a | Paint Mark |
| *b | Timing Mark |
Check the timing mark of the camshaft timing sprocket and the paint mark of the No. 2 chain sub-assembly.
Set the No. 1 camshaft bearing cap and 8 No. 2 camshaft bearing caps to the cylinder head sub-assembly as shown in the illustration.
Temporarily install the 20 bolts.
Uniformly tighten the 20 bolts in several steps in the order shown in the illustration.
|
Bolt A |
|
Bolt B |
| *1 | No. 1 Camshaft |
| *2 | No. 2 Camshaft |
Hold the hexagonal portion of the No. 1 camshaft and No. 2 camshaft with a wrench, and tighten the 2 bolts.
Note
Be careful not to damage the cylinder head sub-assembly with the wrench.
Remove the pin from the No. 2 chain tensioner assembly.
Install a new gasket and the oil pump relief valve plug to the timing chain cover.
Clean and degrease the contact surfaces of the cylinder head sub-assembly and No. 3 camshaft bearing cap.
| *a | Engine Front |
| *b | Seal Packing |
Apply seal packing to the specified areas as shown in the illustration.
| Seal packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
| Standard seal diameter |
|---|
| 3.0 mm (0.118 in.) |
Note
Do not allow seal packing to contact the oil passage of the No. 3 camshaft bearing cap.
After applying seal packing, install the No. 3 camshaft bearing cap within 3 minutes and tighten the bolts within 10 minutes.
Do not start the engine for at least 2 hours after installation.
Install the No. 3 camshaft bearing cap with the 2 bolts.
Wipe off excess seal packing from between No. 3 camshaft bearing cap and cylinder head sub-assembly.
INSTALL TIMING CHAIN GUIDE
Install the timing chain guide to the cylinder head sub-assembly with the bolt.
INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY
INSTALL NOZZLE HOLDER GASKET
TEMPORARILY INSTALL INJECTOR ASSEMBLY
TEMPORARILY INSTALL NO. 1 INJECTION PIPE SUB-ASSEMBLY AND NO. 2 INJECTION PIPE SUB-ASSEMBLY
TIGHTEN INJECTOR ASSEMBLY
TIGHTEN NO. 1 INJECTION PIPE SUB-ASSEMBLY AND NO. 2 INJECTION PIPE SUB-ASSEMBLY
INSTALL NOZZLE LEAKAGE PIPE ASSEMBLY
INSTALL HARNESS BRACKET
INSTALL WIRING HARNESS CLAMP BRACKET
INSTALL INSTALL NO. 1 EGR COOLER WITH ELECTRIC EGR CONTROL VALVE ASSEMBLY
INSTALL VACUUM CONTROL VALVE SET
INSTALL NO. 1 EGR PIPE SUB-ASSEMBLY
CONNECT NO. 4 WATER BY-PASS PIPE SUB-ASSEMBLY
INSTALL NO. 3 WATER BY-PASS PIPE SUB-ASSEMBLY
INSTALL NO. 2 EGR PIPE
INSTALL EGR VALVE BRACKET
INSTALL TURBO PRESSURE SENSOR
INSTALL GAS FILTER
INSTALL DIESEL THROTTLE BODY ASSEMBLY
INSTALL AIR TUBE ASSEMBLY
INSTALL ENGINE COVER BRACKET
INSTALL PIPE CLAMP
TEMPORARILY INSTALL NO. 2 VACUUM PIPE
TEMPORARILY INSTALL NO. 1 VACUUM PIPE
TIGHTEN NO. 2 VACUUM PIPE
TIGHTEN NO. 1 VACUUM PIPE
INSTALL EXHAUST GAS TEMPERATURE SENSOR
INSTALL DIFFERENTIAL PRESSURE SENSOR
INSTALL NO. 2 EXHAUST MANIFOLD HEAT INSULATOR
INSTALL NO. 1 INJECTOR HOLDER
CONNECT NO. 5 WATER BY-PASS HOSE
CONNECT NO. 4 WATER BY-PASS HOSE
INSTALL VENTILATION PIPE SUB-ASSEMBLY
INSTALL NO. 1 FUEL PIPE
INSTALL NO. 2 ENGINE COVER BRACKET
INSTALL NO. 3 ENGINE COVER BRACKET
INSTALL NO. 2 WATER BY-PASS PIPE
INSTALL WATER HOSE SUB-ASSEMBLY
INSTALL CAMSHAFT OIL SEAL RETAINER
INSTALL VACUUM PUMP ASSEMBLY
INSTALL ENGINE ASSEMBLY