Cylinder Head Assembly: Specifications

SERVICE DATA AND SPECIFICATIONS (SDS)

Cylinder Head


CYLINDER HEAD

Unit: mm (in)






VALVE DIMENSIONS

Unit: mm (in)






VALVE GUIDE

Unit: mm (in)






VALVE SEAT

Unit: mm (in)










VALVE SPRING






Unit: mm (in)












Tighten cylinder head bolts in the order of 1 to 10 as shown in the figure with the following procedure.

a.Apply new engine oil to threads and seating surface of mounting bolts.
b.Tighten all cylinder head bolts.










c.Turn all cylinder head bolts 100 degrees clockwise (angle tightening).

CAUTION: Check and confirm the tightening angle by using an angle wrench [SST: KV-10112100 (BT-8653-A)] (A) or protractor. Never judge by visual inspection without the tool.

d.Completely loosen.






CAUTION: In this step, loosen cylinder head bolts in reverse order that indicated in the figure.

e.Tighten all cylinder head bolts.






f.Turn all cylinder head bolts 100 degrees clockwise (angle tightening).
g.Turn all cylinder head bolts 100 degrees clockwise again (angle tightening).

Re-usability

CAUTION: If cylinder head bolts are reused, check their outer diameters before installation.



Cylinder Head Bolts Outer Diameter






Cylinder head bolts are tightened by plastic zone tightening method. Whenever the size difference between (d1) and (d2) exceeds the limit, replace them with a new one.

Limit [(d1) - (d2)]: 0.15 mm (0.0059 in)

If reduction of outer diameter appears in a position other than (d2), use it as (d2) point.

Surface Variation



CYLINDER BLOCK








EXHAUST MANIFOLD






Camshaft Bearing Cap Torque & Sequence








Tighten mounting bolts of camshaft brackets in the following steps, in the order of 1 to 17 as shown in the figure.

White arrow indicates : Engine front

There are two types of mounting bolts. Refer to the following for locating bolts.






i.Tighten mounting bolts in numerical order.






ii.Tighten mounting bolts in numerical order.






iii. Tighten mounting bolts in numerical order.






Intake Manifold Specifications

Exhaust Manifold Specifications

Camshaft Gear/Sprocket Specifications