Removal and Replacement

CYLINDER HEAD

Removal and Installation


REMOVAL

1.Remove the following parts:
- Rocker cover and spark plug: Refer to "Exploded View" Exploded View.
- Intake manifold: Refer to "Exploded View" Exploded View.
- Exhaust manifold: Refer to "Exploded View" Exploded View.
- Water inlet and thermostat housing: Refer to "Exploded View" Exploded View.
- Water pipe and heater pipe: Refer to "Exploded View" Exploded View.
- Timing chain: Refer to "Exploded View" Exploded View.
- Camshaft (EXH) and VVEL ladder assembly: Refer to "Exploded View" Exploded View.
2.Remove cylinder head.





- Loosen mounting bolts in reverse order as shown in the figure.





- Use TORX socket and power tool.
3.Remove cylinder head gaskets.
4.Remove oil filter (for VVEL ladder assembly) from cylinder block, if necessary.
5.Remove valve lifter.
- Identify installation positions, and store them without mixing them up.

INSTALLATION






1.Install oil filter (for VVEL ladder assembly) (1) in the direction shown in the figure, if removed.
- Check that the oil filter does not protrude from the upper surface of cylinder block (2) after installation.
2.Install new cylinder head gaskets.
3.Install cylinder head as per the following:

CAUTION:
- If cylinder head bolts are re-used, check their outer diameters before installation. Refer to "Inspection" Inspection.
- Before installing cylinder head, inspect cylinder head distortion. Refer to "Inspection" Inspection.





- Tighten cylinder head bolts in numerical order as shown in figure.





- Use TORX socket.
a.Apply new engine oil to threads and seat surfaces of cylinder head bolts.
b.Tighten all cylinder head bolts.





c.Tighten all cylinder head bolts (clockwise).





d.Completely loosen all cylinder head bolts.





CAUTION:
In step "d", loosen bolts in the reverse order of that indicated in the figure.
e.Tighten all cylinder head bolts.





f.Tighten all cylinder head bolts (clockwise).





g.Tighten all cylinder head bolts again (clockwise).





CAUTION:





Check the tightening angle using the angle wrench [SST:KV10112100 (BT8653-A)] (A). Never make judgment by visual inspection.
- Check tightening angle indicated on the angle wrench indicator plate.
4.Install valve lifter.
- Install it in the original position.
5.Install in the reverse order of removal.