PIAGGIO MP3 400 hpe E5 2021 - Inspecting the Cylinder Head

- Check the position of the dowels and insert the
gasket with the previously determined thickness.
Inspecting the cylinder head
N.B.
TO MEASURE WEAR LIMITS AND COUPLING CLEARANCES, SEE THE SPECIFICATIONS CHAP-
TER.
Inspecting the timing system components
- Check that the guide slider and the tensioner
slider are not worn out.
- Ensure that the camshaft control pulley chain as-
sembly and the sprocket wheel are not worn.
- If you detect wear, replace the parts or, if the
chain, sprocket wheel and pulley are worn, replace
the whole unit
- Remove the centre screw with the washer and
the tensioner spring. Check that the one-way
mechanism is not worn.
- Check the condition of the tensioner spring.
- If examples of wear are found, replace the whole
unit.
Inspecting the valve sealings
N.B.
TO MEASURE WEAR LIMITS AND COUPLING CLEARANCES, SEE THE SPECIFICATIONS CHAP-
TER.
Engine MP3 400 hpe E5
ENG - 98