Removing The Camshaft; Checking Bearing Parts - APRILIA QUASAR 125 2003 Workshop Manual

QUASAR 125-180
3.2.9

REMOVING THE CAMSHAFT

NOTE
Engine can be left assembled on frame.
"
Remove chain tensioner, see 3.2.5 (REMOVING THE TENSIONER).
"
Remove the complete camshaft mount, see
CAMSHAFT COMPLETE MOUNT).
"
Remove chain (1) from camshaft (2) ring gear.
"
Remove camshaft (2).

3.2.10 CHECKING BEARING PARTS

Rotate bearings (1-2) by hand. They must run smoothly, must not jam at any
positions and/or be quiet.
No axial play shall be present.
Change the camshaft if bearings are noisy, run hard or have play.
CAMS
Check cams (3) for wear. If excessively worn, scored or scratched, change the
camshaft.
TOOTHED GEAR
Check gear (4) teeth for wear. If excessively worn, change the camshaft.
ROCKER ARMS
Check the amount of wear on the rocker arm surface in touch with the cams. If
excessively worn, change the camshaft.
Release 00/2003 - 09
3.2.6 (REMOVING
3
1
ENGINE
1
2
4
2
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