Toyota
Yaris NCP90 91 92 93
Repair Manual
1Nz-Fe Engine Mechanical
Timing Chain
- NOTICE:
- To avoid the danger of being burned, do not remove the radiator cap sub-assembly while the engine and radiator assembly are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator assembly.
Loosen the radiator drain cock plug.
Remove the radiator cap sub-assembly.
Loosen the cylinder block drain cock plug, then drain the coolant.

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Remove the 4 nuts and cylinder head cover No. 2.

Loosen bolts A and B.
Release the fan and generator V belt tension and remove the fan and generator V belt.
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Remove the terminal cap.
Separate the connector and harness clamp.
Remove the nut and remove terminal B.

Remove fan belt adjusting slider fixing bolts A and B and remove the fan belt adjusting slider.

Remove fixing bolt B and remove the generator.
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Disconnect the 4 ignition coil connectors.

Remove the 4 bolts and 4 ignition coils.
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Disconnect the ventilation hose.
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Disconnect ventilation hose No. 2.
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Disconnect the fuel injector connectors.

Disconnect the connector and 3 wire harness clamps shown in the illustration and disconnect the engine wire harness.

Remove the 9 bolts, 2 nuts and 2 seal washers and then remove the cylinder head cover sub-assembly.
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Disconnect the fuel injector connectors.

Disconnect the connector and 3 wire harness clamps shown in the illustration and disconnect the engine wire harness.

Remove the bolt and remove the wire harness bracket.

Remove the 9 bolts, 2 nuts and 2 seal washers and remove the cylinder head cover sub-assembly.
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Place a wooden block on a jack underneath the engine.

Remove the 5 bolts and nut and remove the engine mounting insulator sub-assembly RH.
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Set cylinder No. 1 to TDC/compression.
Turn the crankshaft damper sub-assembly, and align its timing notch with timing mark "0" of the oil pump.

Check that the timing marks on the camshaft timing sprocket and the camshaft timing gear are all facing upward as shown in the illustration.
If not, turn the crankshaft 1 complete revolution (360°) and align the marks as above.

Using 2 SSTs, loosen the bolt while holding the crankshaft damper sub-assembly.
- SST
- 09213-14010 (91651-60865)
09330-00021
- NOTICE:
- Check the SST installation positions when installing them, to avoid the SST fixing bolts from coming into contact with the oil pump assembly.
Remove the SSTs and the bolt.
Remove the crankshaft damper sub-assembly.
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Disconnect the crankshaft position sensor connector.
Remove the bolt and remove the crankshaft position sensor.
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Disconnect the camshaft timing oil control valve assembly connector.

Remove the bolt and nut and remove the camshaft timing oil control valve assembly.

Remove the O-ring from the camshaft timing oil control valve assembly.
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Using SST, hold the water pump pulley.
- SST
- 09960-10010 (09962-01000, 09963-00700)
Remove the 3 bolts and remove the water pump pulley.
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Remove the 3 bolts and 2 nuts and remove the water pump assembly and gasket.
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Remove the 4 bolts and remove the transverse engine engine mounting bracket.
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Remove the 15 bolts and the nut.

Using a screwdriver with its tip wrapped in protective tape, prize the oil pump assembly to remove it.
- NOTICE:
- Do not damage the contact surfaces of the oil pump assembly or oil pan sub-assembly.

Remove the 2 O-rings from the cylinder block and oil pan sub-assembly.
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Using a screwdriver with its tip wrapped in protective tape, remove the oil pump seal.
- NOTICE:
- Do not rotate the crankshaft with the chain tensioner removed.
- When rotating the camshaft with the timing chain removed, rotate the crankshaft counterclockwise 40 ° from the TDC first.

Pull up the stopper plate and hold it with its lock released.

Unlock the plunger of the tensioner and push it in to the end.

Pull down the stopper plate with the plunger pushed to the end and lock the plunger.

Insert a 3 mm (0.12 in.) diameter bar into the hole in the stopper plate and lock the plunger.

Remove the 2 bolts and remove chain tensioner assembly No. 1.
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Remove the chain tensioner slipper.
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Remove the 2 bolts and remove chain vibration damper No. 1.
















