UAZ UAZ-31512, Инструкция по эксплуатации

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- having adjusted the clearances of one cylinder, turn the
crankshaft through half a turn and adjust the clearances on other
cylinders (3, 5, 7, 8).
The valve-to-rocker clearances on a cold engine (15-20 °C)
for the exhaust valves of No.1 and No.4 cylinders (valves 1 and
8) should be equal to 0.30 - 0.35 mm, and for other valves - 0.35
- 0.40 mm.
Maintenance of the Lubrication System
For cooling oil in the engine lubrication system, an oil cooler
is provided. It is recommended to cut in the cooler by opening
the cock 7 (Fig. 26) at an ambient temperature above +20 °C.
But when riding on heavy roads (with heavy load and at a high
engine crankshaft speed), also cut in the cooler independing on
an ambient temperature.
Fig. 24. Timing Marks on Crankshaft
Pulley:
1 -index pointer; 2 -mark for setting TDC;
3 -mark for ignition timing
Fig. 25. Adjusting Clearance
between Rocker Arm and
Valve:
1 -valve spring retainer; 2 -
valve; 3 -rocker; 4 -adjusting
screw; 5 -lock nut