•
Check that the camshaft gear works properly: if it is damaged or does not move smoothly,
replace the timing chain and the camshaft gear.
CAMSHAFT LOBES
•
Check that they do not show blue colouring, cracks or scratches; otherwise, replace the
camshaft, gear and chain.
•
Fasten the camshaft horizontally, as
shown in the figure, and make it spin to
check the eccentricity with a dial
gauge; if necessary, replace the part.
Characteristic
Maximum camshaft axial clearance (intake/
outlet)
0.3-0.1 mm (0.012-0.004 in)
Check the timing chain for damage or stiffness
while moving.
If necessary, replace the timing chain together with
the camshaft gears.
Check the timing chain guide sliders for damage.
If necessary, replace the parts.
Installing camshafts
NOTE
THE INTAKE AND EXHAUST CAMSHAFTS ARE BOTH DEDICATED FOR THE FRONT AND REAR
CYLINDER BANKS.
•
Install the intake and exhaust cam-
shafts on the rear head, remembering
that:
the intake camshaft gear tooth (indicated with a
dot) is inserted in the groove of the exhaust cam-
shaft gear (indicated with two dots).
CLEAN THOROUGHLY THE SEATS OF THE GEAR RE-
TAINER SCREWS, ON THE INTAKE CAMSHAFT.
Engine RSV4 RR-RF
ENG - 328
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