PIAGGIO Beverly 300ie - Service manual > Inspecting the cam shaft
N.B.
TO MEASURE WEAR LIMITS AND COUPLING CLEARANCES, SEE THE SPECIFICATIONS CHAPTER.
See also
Cylinder Head
Refitting the head and timing system components
Assemble the timing chain sprocket wheel on the crankshaft with the chamfering facing the insertion side and observing the position of the reference dowel.
- Loop the timing control chain "1" around the crankshaft.
- Fit the guide slider and the tensioner pad "2" on the head side.
- Fit spacer "5" with fixing screw "6".
- Tighten the screws to the prescribed torque.
Locking torques (N*m)
Slider screw 10 - 14 Nm
- Fit the head gasket and check that the alignment dowels work properly.
- Insert the head.
- Lubricate the stud bolt threads with engine oil.
- Tighten up the nuts to an initial pre-torque of 7+-1 Nm.
- Tighten up the nuts to a second pre-torque of 10 +-1 Nm
- To carry out the operations described above, follow the tightening sequence in the figure.
- Fit the two screws on the outside of the timing chain side and tighten them to the specified torque.
N.B.
BEFORE INSTALLING THE HEAD, MAKE SURE THAT THE LUBRICATION CHANNEL IS CLEAN USING A COMPRESSED AIR JET.
Locking torques (N*m)
Timing chain tensioner support screw 11 to 13
Fit the pins and rocking levers.
- Lubricate the two rocking levers through the holes at the top.
- Lubricate the 2 bearings and insert the camshaft in the cylinder head with the cams corresponding to the rocking levers.
- Insert the retention plate and tighten the two screws shown in the figure to the prescribed torque.
Locking torques (N*m)
Plate screws 4 - 6 Nm
Insert the spacer on the cam shaft.
- Rotate the engine so that the piston is at top dead centre, using the reference marks on the flywheel and the crankcase.
- Insert the pulley on the camshaft while keeping the reference 4V in correspondence with the reference mark on the head.
- Holding this position insert the chain on the camshaft control pulley.
- Lock the fixing screws.
Locking torques (N*m)
Counterweight screw 7 to 8.5
Set the tensioner cursor to the rest position.
- Fit the chain tensioner on the cylinder, using a new gasket, and tight
the two screws to the prescribed torque.
Insert the chain tensioning screw, together with the spring and washer, tightening it to the prescribed torque.
Locking torques (N*m)
Tensioner screws 11 to 13 Tensioner cover 5 - 6 Nm
- Check valve clearance.
Characteristic
Valve clearance
Intake: 0.10 mm Exhaust: 0.15 mm
Refitting the rocker-arms cover
- Refit the cylinder head cover and tighten the 5 clamping screws to the prescribed torque.
- Make sure the gasket is positioned properly.
Locking torques (N*m)
Tappet cover screws 5 - 6 Nm
Refitting the intake manifold
- Fit the intake manifold and do up the three screws.
Locking torques (N*m)
Intake manifold screws 11 รท 13
See also:
PIAGGIO Beverly 300ie - Service manual > Refitting the cylinder
N.B. BEFORE FITTING THE CYLINDER, CAREFULLY BLOW OUT THE LUBRICATION DUCT AND OIL THE CYLINDER LINER. Check the position of the alignment dowels and dowel pin and fit a gasket with a thickness previously determined. Using the specific tool fit the cylinder paying attention that the chain does not remain in the timing system compartment.
PIAGGIO Beverly 300ie - Service manual > Crankcase - crankshaft
Splitting the crankcase halves AXIAL CLEARANCE CHECK Before opening the engine crankcase, it is advisable to check the axial clearance of the crankshaft.
