186
ADJUSTMENT
E751 E752 E753
TENSIONING THE ENGINE V-BELT
To be tensioned properly, the belt deflec-
tion must be 7,5 mm when depressed
with the force of 25 N.
To adjust the belt tension to the specified
value, loosen the alternator fixing screws
(1, 2).
∗TENSIONING THE AIR-
CONDITIONING COMPRESSOR BELT
To be tensioned properly, the belt deflec-
tion must be 7,5 mm when depressed
with the force of 25 N.
To adjust the belt tension to the specified
value, loosen the fixing screws of the air-
conditioning compressor.
TIGHTENING THE CYLINDER HEADS
Tighten the cylinder heads in the speci-
fied sequence with the engine cold.
Torque 160 - 180 Nm
Valve clearance 0.25 ± 0.05 mm
VALVE CLEARANCE ADJUSTMENT
Adjust the engine valve clearance with
the engine cold. The correct valve clear-
ance both of suction and exhaust valves
is 0.25 ± 0.05 mm.
Alternating movement of rocker arms:
Change of rocker
arm position
on cylinder N
o
Adjust the valve
on cylinder N
o
1 4
3 2
4 1
2 3