APRILIA SCARABEO 500 - 2008, Service Station Manual

Page: 199 / 324

- Remove the flywheel cover with the cooling system sleeves as described in the «Flywheel cover»
chapter.
- Remove the magneto flywheel with the start-up control as described in the «Magneto flywheel re-
moval» chapter.
- Remove the thermal group (cylinder, head, piston) as described in the «Thermal group and Timing
system» chapter.
- Before opening the engine crankcase, it is advisable to check the axial clearance of the crankshaft.
For this purpose, use a plate (e.g. the specific tool) and a support with specific tool dial gauge.
Specific tooling
020262Y Crankcase splitting strip
020335Y Dial gauge magnetic support
Characteristic
Standard clearance:
0.10 ÷ 0.50 mm
Increased limit after use:
0.60 mm
- Higher clearances are signs of wear on the supporting surfaces of the crankshaft on the crankcase.
- To carry out an accurate measurement, measure the clearance in both directions between crankcase
and crankshaft.
Splitting the crankcase halves
- Remove the engine support retaining screw on
the flywheel-side crankcase half.
SCARABEO 500
Engine
ENG - 199