Engine Assembly
151
Fit the centering pins.
Place the brackets of the camshaft journals and
the chain guide in the correct position.
NOTE:
Camshaft-journal brackets marked “EX” belong in
the exhaust side, and camshaft-journal brackets
marked “IN” belong in the inlet side.
Tighten the screws on the camshaft-journal
brackets at the specified torque.
Camshaft-journal bracket screw:
10 Nm (1 Kgf-m)
Once the camshaft journals have been fitted you
must proceed to the valve clearance adjustment.
Tool ref.:
Thickness gauge
DATA:
Exhaust valves: 0.25 mm
Intake valves: 0.15 mm
Using the thickness gauge, the clearance between
the camshaft and the valve’s top cup should be
checked. If the clearance does not correspond to
the one expressed in DATA, the valve shim must
be changed by another one that corresponds to
the adequate setting.
CYLINDER-HEAD COVER
Totally remove any oil from the contact surfaces
of the cylinder head and its cover.
Apply silicone to the end plugs of the cylinder-
head cover joint, as illustrated.
Tool Description:
Silicone
NOTE:
When tightening the screws on the cylinder-head
cover, the piston must be in the inner dead-centre
position of the compression stroke.
Apply motor oil to both faces of the washer (1).
Tighten the screws on the cylinder-head cover
slightly, in a diagonal sequence, and then tighten
them at the specified torque.
Cylinder-head cover screw:
Initial: 10 N, (1 kgf-m)
Final: 14 N, (1.4 kgf-m)
CAUTION!
Use new washers (1) and a new rubber seal (2).
1
2
SILICONA
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