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Engine
Camshaft check: Minimum diameter admitted
Bearing B Ø: 19.950 mm
Camshaft check: Minimum diameter admitted
Bearing A Ø: 36.94 mm
Camshaft check: Standard diameter
Bearing B Ø: 19.959 ÷ 19.98 mm
Camshaft check: Standard diameter
Bearing A Ø: 36.95 ÷ 36.975 mm
Refitting the head and timing system components
- Fit the timing chain sprocket wheel on the crank-
shaft, with the chamfer facing the insertion side.
- Loop the timing chain around the sprocket on the
crankshaft.
- Fit the chain tensioner pad from the cylinder head
side.
- Fit the spacer and the fixing screw.
- Tighten the screw to the prescribed torque.
- Fit the pins and rocker levers.
- Lubricate the 2 rocking levers through the holes
at the top.
- Lubricate the 2 bearings and insert the camshaft
in the cylinder head with the cams opposed to the
rocking levers.
- Insert the retention plate and tighten the two
screws shown in the picture to the prescribed tor-
que.
- Refit the spacer on the camshaft.
- Rotate the engine so that the piston is at top dead
centre, using the reference marks on the flywheel
and the crankcase.
- In this position, fit the chain onto the camshaft
control pulley.
- Insert the pulley on the camshaft while keeping
the reference 4V matching the reference mark on
the head.
ENG - 122

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