To perform the adjustment, proceed as
follows:
• Remove the cylinder head cover cap
and check the fastening of the rocker
axle rests. The nut tightening torque
shall be 60-90 N•m (6-9 kgf•m);
• Rotate the engine crank shaft until the
moment of closing of the valves of the
1
st
cylinder (intake valve starts open-
ing, exhaust valve finishes closing)
and adjust clearances in the 4
th
, 6
th
,
7
th
and 8
th
valves (counting from the
fan);
• To adjust the clearance, loosen the
locknut (1) of screw (2), insert the
feeler (5) between the face of valve
rod (3) and the rocker head (4) and
set the required clearance against
the feeler by turning in or out the
screw (2).
The clearances between the rocker
head and the valve rod face on the cold
engine for intake and exhaust valves are
given in the table below:
• Turn the crankshaft through 360, set
the valve closing at the 4
th
cylinder and
adjust clearances in 1
st
, 2
n d
, 3
r d
and 5
th
valves as shown above;
• Having made the adjustment, tighten
the locknuts (1) and refit the removed
parts.
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