APRILIA TUONO R FACTORY 2007 Service Station Manual page 180

Engine
•
axial clearance between connecting rod and crank arm (5); max. limit 0.60 mm (0.0236 in)
CAUTION
MEASURE CRANKSHAFT ECCENTRICITY BETWEEN ENDS
•
crankshaft eccentricity (6), flywheel side; max. limit 0.020 mm (0.00079 in);
•
crankshaft eccentricity, clutch side (7); max. wear limit 0.020 mm (0.00079 in).
CAUTION
DO NOT REUSE ENGINE CRANKCASE GASKETS WHICH HAVE BEEN REMOVED.
USE NEW APRILIA ORIGINAL GASKETS ONLY.
WITH A COMPARATOR, DETERMINE THE CRANKSHAFT AXIAL CLEARANCE AFTER CRANK-
CASE HALVES COUPLING.
Max. crankshaft axial clearance 0.5 mm (0.020
in).
With a comparator, determine the rod small end
radial clearance (8).
Max. wear limit 0.060 mm (0.00236 in)
Measure the radial clearance between the (engine
crankcase) main bushings and the related crank-
shaft (1) areas.
Max. radial clearance allowed 0.060 mm (0.00236
in)
Radial clearance is derived from the following val-
ues:
•
the maximum inside diameter value of
the (engine crankcase) main bushings
minus the diameter value of the (en-
gine crankcase) main bushing area on
the crankshaft.
•
measure the (engine crankcase) main
bushings inside diameter.
IF THIS MAX. RADIAL CLEARANCE ALLOWED IS EXCEE-
DED, REPLACE THE WORN OUT COMPONENT.
Measure the radial clearance between the supporting bushings (clutch cover) and the related crankshaft
(2) area.
Max. radial clearance allowed 0.065 mm (0.00260 in)
Radial clearance is derived from the following values:
the maximum inside diameter value of the (clutch cover) supporting bushings minus the diameter value
of the (clutch cover) supporting bushing area on the crankshaft.
Measure the supporting bushings (clutch cover) inside diameter.
ENG - 180
TUONO R_FACTORY