Camshaft (For Hatchback) Installation

Put the camshaft timing gear assembly and camshaft together with the straight pin of the groove.

Turn the camshaft timing gear assembly clockwise while pushing it gently toward the camshaft. Push further at the position where the pin fits into the groove.

NOTICE:

Do not turn the camshaft timing gear to the retard angle (to the right).

Check that there is no clearance between the gear flange and the camshaft.

Tighten the flange bolt with the camshaft timing gear fixed.

Torque:

64 N*m{653 kgf*cm, 47 ft.*lbf}

NOTICE:

1. Do not lock the camshaft timing gear assembly when tightening the bolt.
   
2. Release the lock pin of the camshaft timing gear assembly first, and tighten the bolt when the lock pin is locked in the most retarded position.
   
3. Tightening the bolts with the lock pin locked could cause breakage of the lock pin.
   

Check that the camshaft timing gear assembly can move to the retard angle (to the right) and is locked in the most retarded position.

Apply a light coat of engine oil to the camshaft and camshaft journals.

Install the chain onto the camshaft timing gear with the paint mark and the timing mark aligned as shown in the illustration.

Examine the front marks and numbers on the No. 2 camshaft bearing cap and check that the sequence is as shown in the illustration. Then uniformly tighten the bolts, in several steps, in the sequence shown in the illustration.

Torque:

13 N*m{129 kgf*cm, 9 ft.*lbf}

NOTICE:

Tighten each bolt uniformly while keeping the camshaft level.

Install the No. 2 camshaft.

Hold the chain and align the timing mark on the camshaft timing sprocket with the paint mark of the chain.

Align the alignment pin hole in the camshaft timing sprocket with the alignment pin of the camshaft, and install the sprocket onto the camshaft.

Provisionally install the flange bolt.

Examine the front marks and numbers on the No. 1 and No. 2 camshaft bearing caps and check that the order is as shown in the illustration. Then uniformly tighten the bolts, in several steps, in the sequence shown in the illustration.

Torque:

No. 2 bearing cap:

13 N*m{129 kgf*cm, 9 ft.*lbf}

No. 1 bearing cap:

23 N*m{235 kgf*cm, 17 ft.*lbf}

NOTICE:

Tighten each bolt uniformly while keeping the camshaft level.

Using a union nut wrench 14 mm, hold the hexagonal lobe of the No. 2 camshaft and install the flange bolt.

Torque:

64 N*m{653 kgf*cm, 47 ft.*lbf}

HINT:

Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench (YARIS_NCP93 RM00000482L007X.html).

Remove the bar from the timing chain tensioner.

Turn the crankshaft damper and align the timing notch with the timing mark "0" of the oil pump.

Check that all the pairs of timing marks are aligned.

Apply adhesive to 2 or 3 threads of the screw plug end.

Adhesive:

Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent

Using an 8 mm (0.31 in.) hexagon wrench, install the screw plug.

Torque:

15 N*m{153 kgf*cm, 11 ft.*lbf}

Install the engine mounting insulator sub-assembly RH with the 4 bolts and 2 nuts.

Torque:

52 N*m{530 kgf*cm, 38 ft.*lbf}

Apply seal packing to the cylinder head as shown in the illustration.

Seal packing:

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

NOTICE:

1. Remove any oil from the contact surfaces.
   
2. Install the cylinder head cover within 3 minutes and tighten the bolts within 15 minutes after applying seal packing.
   
3. Do not start the engine for at least 2 hours after the installation.
   

Install the cylinder head cover sub-assembly with the 9 bolts, 2 nuts and 2 seal washers.

Tighten the 9 bolts and 2 nuts in the sequence shown in the illustration.

Torque:

10 N*m{102 kgf*cm, 7 ft.*lbf}

Install the wire harness bracket with the bolt.

Torque:

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

Connect the connector and 4 wire harness clamps and connect the engine wire harness.

Connect the 4 fuel injector connectors.

Install the 4 No. 1 ignition coils with the 4 bolts.

Torque:

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

NOTICE:

If the body or cap of the ignition coil is dropped or subjected to a strong impact, replace the ignition coil with a new one.

HINT:

Perform "Inspection After Repairs" after replacing the ignition coil assembly (YARIS_NCP93 RM000004NJD006X.html).

Connect the 4 No. 1 ignition coil connectors.

Connect fuel vapor feed hose assembly.

Connect the ventilation hose.

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

Torque:

7.0 N*m{71 kgf*cm, 62 in.*lbf}