UAZ UAZ-31512, Инструкция по эксплуатации

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preliminarily with a less force, the second one - finally; the final
tightening torque should be equal to 90-94 N•m (9.0 -
9.4 kgf•m).
As required, clean carbon deposit off the cylinder head,
piston crowns and inlet valves.
Valve gear. Adjust the valve-to-rocker clearances on a cold
engine using the following sequence:
- remove the vacuum governor hose;
- remove the rocker cover;
- using mark (Fig. 24) on the crankshaft pulley, set the piston
of No.1 cylinder at the TDC on the compression stroke and
check the clearance between the rockers and valves of No.1, 2,
4, 6 with the feeler gauge. In the case of an incorrect clearance,
screw out lock nut (Fig. 25) of adjusting screw and rotating the
letter with a screwdriver, set a required clearance by means of
the feeler gauge. Then, holding the adjusting screw with the
screwdriver, tighten the lock nut and check the clearance for
correct setting;
Fig. 22. Engine Mounting:
1 -protective cover; 2 -washer; 3 -upper pad; 4 -seat; 5 -lower pad; 6 -distance
sleeve; 7 -washer; 8 -bolt
Fig. 23. Sequence of Tighten-
ing Cylinder Head Nuts