Lada Niva Manual - Maintenance
Page 5
Table 3 - Sequence of Valve Clearance Adjustment.
Crankshaft
No of cylinder in which piston is on TDC
Valves under adjustment
angle
at end of compression stroke
exhaust
intake
degrees
Cylinder
No.
Cam No.
Cylinder
No.
Cam No.
0
4
4 8 3 6
180
2
2 4 4 7
360
1
1 1 2 3
560
3
3 5 1 2
•
Reinstall the cylinder head cover with its gasket. Adjustment over, check the tightening
torque of the crankshaft jaws, which should be 122 N·m (12.2 kg · m).
Tensioning the Valve Gear Chain
Every 10.000 Km, adjust the tension of
timing chain 2 (Fig. 34). Do it on a new car
after the first 2,000- 3,000 Km. For this
purpose, loosen retaining nut 7 and turn the
crank- shaft through 1-1~5 revolutions in the
direction of its normal rotation. In this case
spring 10 actuates shoe 6 through plunger 11
and automatically sets the required chain
tension. Adjustment over, tighten nut 7.
Adjust chain tension also in case of excessive
operation noise in the valve gear.
Fig 34. Valve Gear Drive
. 1 - camshaft sprocket, 2 - chain, 3 -
dampener, 4 - oil pump drive shaft sprocket, 5 - crankshaft sprocket,
6 - chain tensioner shoe, 7 tensioner rod retaining nut, 8 - retainer, 9
- tensioner adjusting rod, 10 - plunger spring, 11 - tensioner plunger
FUEL SYSTEM
Air Cleaner
Every 10.000 Km replace filter element 3 (Fig. 35); to this end
unscrew nuts 1 and remove cover 2. When driving on extremely
dusty roads, replace the filter element every 5,000 Km.
Figure 35. Air Cleaner
1- nut, 2-
cover, 3- filter, 4- thermo-regulator, 5-
handle
Seasonal adjustment of the air cleaner is required for delivery
of fresh or warm air (warmed by the exhaust manifold). If the
average ambient temperature in the season is below 15 "C,
slightly pull and then shift the handle 5 of the gate on the
housing of thermo-regulator 4 in the upper position (HOT) and if
the average temperature is above 15 "C, shift the handle to the
lower position (COLD).
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