PIAGGIO MP3 500 i.e. SPORT, Service Station Manual

Page: 396 / 432

- Use a transparent hose to connect the venting
union with the expansion tank filler.
- Loosen the vent and start the engine.
- Keep it open until the air has been fully vented.
- Close the bleed screw.
- Stop the engine.
- Restore the level into the expansion tank and tighten the cap.
- Start the engine and let it warm up to reach the electric ventilation temperature.
- Stop the engine.
- Restore the level with cold engine.
CAUTION
ELECTRIC VENTILATION IS CONTROLLED BY THE TEMPERATURE MEASURED AT THE HEAD.
THE ELECTRIC VENTILATION START DOES NOT MEAN THAT THE VENTING HAS BEEN COM-
PLETED.
VENTING IS COMPLETE WHEN THE EXPANSION TANK TEMPERATURE RISES.
Water pump
Water pump
If noise or loss of liquid at the drain hole of the water pump is discovered, replace the flywheel cover
and the water pump as described in the "Flywheel Cover" Chapter.
Proceed to carry out a few preliminary operations as described below:
•
Place the vehicle on its centre stand and on flat ground.
•
Remove the bodywork components as described in the "Bodywork" Chapter.
•
Remove the muffler to access the flywheel cover as described in the "Removing the Engine
from the Vehicle" Chapter.
•
Empty the cooling system, removing the hoses located on the water pump cover and the
loading cap located on the expansion tank.
CAUTION
THIS OPERATION MUST BE CARRIED OUT WHEN THE ENGINE IS COLD.
Cooling system
MP3 500 i.e. SPORT Business_LT_ ABS-ASR_EU_USA
(2015)
COOL SYS - 396