Cylinder Head Cover Removal; Cylinder Head Cover Inspection; Cylinder Head Cover Installation; Rocker Arm Removal - TGB EST 1000 Service Manual

5-2. ENGINE TOP END
CYLINDER HEAD COVER

Cylinder Head Cover Removal

▪ Remove the bolts of cylinder head cover.
▪ Remove cover and gasket.
▪ Repeat at the procedure for the other cylinder
head cover if required.

Cylinder Head Cover Inspection

Check the gasket on the cover if it is brittle,
cracked or hard. If so, replace the gasket.

Cylinder Head Cover Installation

▪ For installation, reverse the removal
procedure.
▪ Tighten cylinder head cover retaining bolts to
specified torque in a criss-cross sequence.
TORQUE: 1.0~1.2 kgf.m
ROCKER ARM

Rocker Arm Removal

▪ Remove cylinder head cover.
▪ Place the cylinder at TDC ignition.
▪ Remove four bolts of the camshaft holder and
remove rocker arm shafts
▪ Remove rocker arm assembly.
Rocker Arm Inspection
▪ Inspect each rocker arm for cracks and scored
friction surfaces. If so, replace rocker arm
assembly.
▪ Check the rocker arm rollers for free
movement, wear and excessive radial play.
Replace rocker arm assembly if necessary.
▪ Measure rocker arm bore diameter. If diameter
is out of specification, change the rocker arm
assembly.
▪ Check adjustment screws for free movement,
cracks and/or excessive play.
5-2-6