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Engine
Valve stem diameter (MINIMUM WEAR VALUE)
5.92 mm (0.2331 in)
Valve head eccentricity (MAXIMUM ALLOWED VALUE)
0.05 mm (0.0020 in)
Adjusting valve clearance
•
Bring the piston of the left cylinder to
top dead centre making sure that the
reference mark on the crankshaft gear
and on the timing system shaft are
aligned.
•
Use a feeler gauge to check that the
clearance between the valve and the
set screw corresponds with the indica-
ted values. The corresponding intake
and outlet valve clearances are differ-
ent than what is indicated below, pro-
ceed with adjusting them.
Characteristic
Intake valve clearance
0.10 mm (0.0039 in)
Exhaust valve clearance
0.15 mm (0.0059 in)
•
Loosen the lock nut, adjust the clear-
ance by acting on the adjuster until
reaching the prescribed values
•
Tighten the lock nut
Timing
ENG - 68
Engine 750 Euro 4
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