Inspecting The Cam Shaft - PIAGGIO MP3 500 i.e. SPORT Service Station Manual

MP3 500 i.e. SPORT Business_LT_ ABS-ASR_EU_USA (2015)
- Fit the valves, the springs and the caps. Using
the appropriate tool with adapter, compress the
springs and insert the cotters in their seats.
Specific tooling
020382Y Tool for removing valve cotters fitted
with part 012
020382Y012 bush (valve removing tool)
N.B.
DO NOT CHANGE THE VALVE FITTING POSITION. FIT THE VALVE SPRINGS WITH THE REF-
ERENCE COLOUR ON THE COTTERS SIDE (TURNS WITH GREATER PITCH).

Inspecting the cam shaft

- Check the camshaft bearings for signs of abnormal wear or scores.
- Using a micrometer, measure the camshaft bearings.
Specification
Bearing A Ø:
Bearing B diameter:
Specification
Bearing A Ø:
Bearing B diameter:
- Using a gauge, measure the height of the cams.
Specification
discharge
Specification
discharge
Standard axial clearance:
Maximum axial clearance allowed:
STANDARD DIAMETER
MINIMUM DIAMETER ALLOWED
STANDARD HEIGHT
intake
ADMISSIBLE LIMITS
intake
Desc./Quantity
42- 0.060 -0.085 mm
20- 0.020 -0.041 mm
Desc./Quantity
41.910 mm
19.940 mm
Desc./Quantity
33.774 mm
33.273
Desc./Quantity
33.526 mm
33.026 mm
0 - 0.22 mm
0.3 mm
Engine
ENG - 209