Countershaft; Refitting The Crankshaft - PIAGGIO MP3 400 i.e. Service Manual

Engine
THE TRANSMISSION SIDE HALF-CRANKCASE, AS DESCRIBED IN CHAPTER "AUTOMATIC
TRANSMISSION", AND THE HUB COVER WITH THE RELEVANT GEARS AND BEARINGS AS
DESCRIBED IN CHAPTER "FINAL REDUCTION".

Countershaft

- Using a micrometer, measure the 2 bearings of
the countershaft as shown in the figure.
Characteristic
Standard diameter:
17 - 0.01 - 0.02 mm
- Check that the water pump drive is not worn.

Refitting the crankshaft

- Check that the oil pump and countershaft control gear are free from deformations or dents. Replace,
if required.
N.B.
IF YOU HAVE TO REPLACE THE OIL PUMP AND COUNTERSHAFT CONTROL GEAR IT IS NEC-
ESSARY TO REPLACE THE COUNTERSHAFT GEAR AS WELL.
- Before installing the gear on the crankshaft, care-
fully clean the two matching surfaces removing
any residues of LOCTITE from the holes using a
brush.
Blow with compressed air and degrease the mounting holes on both surfaces to make the new LOCTITE
grip.
Apply the recommended product to the holes again.
Recommended products
Loctite 243 Medium strength threadlock
Loctite 243 medium-strength threadlock
- Repeat the same procedure for the 4 fastening screws.
- Insert the control gear on the crankshaft with the hole countersink visible.
- Tighten the 4 fastening screws to the prescribed torque.
N.B.
ENG - 90
MP3 400 i.e.