PIAGGIO PORTER 1.3 16V 2008, Service Manual

Page: 581 / 892

7. Remove the following components:
•
Synchroniser hub assembly No. 1
•
Synchronisation ring No. 3
•
2nd gear with sub-gear
- THE COMPONENTS DESCRIBED ABOVE, CAN BE RE-
MOVED BY SLIGHTLY PRESSING ON THE SECONDARY
SHAFT, WHILE THE 2nd GEAR (SUB-GEAR SURFACE) IS
SUPPORTED BY MEANS OF THE TOOL INDICATED
ABOVE.
8. Remove the needle bearing.
- NEVER EXPAND OPENING (A) OF THE BEARING WITH A
VALUE EXCEEDING THE SECONDARY SHAFT DIAMETER
+ 5 MM, UPON FITTING AND REMOVAL. FAILURE TO OB-
SERVE THIS CONDITION CAN CAUSE ABNORMAL NOISE
OF THE GEAR.
Inspection
1. Measure the height of synchronised gear elastic
keys. Specification value: 5.1 ± 0.1 mm
2. Visually inspect the synchronised gear elastic
key spring, to highlight possible damage or distor-
tions.
3. Measure the outside diameter of the secondary
shaft, corresponding to sections ( A ) and ( B )
4. Visually check the sections ( A ) and ( B ), to high-
light the presence of possible scores and wear.
Characteristic
(A)
Specified value: 32 - 0 0029 mm- 0.0029;mm
(B)
Specified value: 32 - 0 0029 mm- 0.0029;mm
5. Measure the thickness of the thrust washer of
the 1st gear.
Characteristic
Specification value:
4 ± 0.03 mm
PORTER 1.3 16V
Gear-box
GE - 581