Assembly Clearances - PIAGGIO B 250 Workshop Manual

B 125-250
Water pump rotor cover
Screws for water pump rotor driving link
Thermostat cover screws
Bleed screw:
(°) Apply LOCTITE 242 medium-strength threadlock
(*) The two screws must be tightened to the prescribed torque after having done so with the rear wheel
axle nut. Safety locks: see "Pre-delivery operations".
(^) Fasten the nuts in two crossed passes.
(1) Before fitting the nuts lubricate them with engine oil
Overhaul data

Assembly clearances

Cylinder - piston assy.
Name
Cylinder
Cylinder
Piston
Piston
Cylinder 1st Oversize
Cylinder 1st Oversize
Piston 1st Oversize
Piston 1st Oversize
COOLING
Name
ENGINE 125 COUPLING CATEGORIES
Initials
A 56.997 ÷ 57.004
B 57.004 ÷ 57.011
C 57.011 ÷ 57.018
D 57.018 ÷ 57.025
A1 57.197 ÷ 57.204
B 1 57.204 ÷ 57.211
C 1 57.211 ÷ 57.218
D 1 57.218 ÷ 57.225
Torque in Nm
Cylinder Piston
56.945 ÷ 56.952
56.952 ÷ 56.959
56.959 ÷ 56.966
56.966 ÷ 56.973
57.145 ÷ 57.152
57.152 ÷ 57.159
57.159 ÷ 57.166
57.166 ÷ 57.173
Characteristics
3 ÷ 4
3 ÷ 4
3 ÷ 4
3
Play on fitting
0.045 - 0.059
0.045 - 0.059
0.045 - 0.059
0.045 - 0.059
0.045 - 0.059
0.045 - 0.059
0.045 - 0.059
0.045 - 0.059
CHAR - 17