
lock nut tightening, until the blade is a firm sliding fit when the lock
nut is tightened (Fig.2-42);
- after the clearance is adjusted at the cylinder No4 exhaust
valve and cylinder No3 intake valve, turn the crankshaft progres-
sively to the 180° and adjust the clearances, observing the
sequence as shown in Table 2-2.
Table 2-2
Valve clearance adjustment
Crankshaft angle,
Cylinder No
Valve (cam) No
degrees
(end of compression stroke)
0
4
8 & 6
180
2
4 & 7
360
1
1 & 3
540
3
5 & 2
Cylinder head - removal and refitting
The cylinder head is removed from the engine in the vehicle,
when no complete stripping of the engine is required, or when
carbon deposits should only be removed from the combustion
chamber and valves. To remove the cylinder head, carry out the
following operations.
Apply the handbrake, remove the spare wheel and discon-
nect the battery negative lead.
Remove the air cleaner and protect the carburettor with the
provisional plug. Drain the coolant from the radiator and cylinder
block.
28
Fig.2-42. Checking the clearance between the rocker levers and cam
lobes:
1 - feeler blade Ä.95111; 2 - adjuster bolt; 3 - lock nut
Fig.2-43. Valve components:
1 - valve; 2 - circlip; 3 - valve guide; 4 - oil cap; 5 - lower spring seat, outer
spring; 6 - locking washer, inner spring; 7 - inner spring; 8 - outer spring; 9 -
upper spring seat; 10 - collets; 11 - valve rocker lever; 12 - valve lever spring;
13 - adjuster bolt; 14 - lock nut, adjuster bolt; 15 - bush, adjuster bolt; 16 - lock-
ing plate, valve lever spring
Fig.2-44. Removing the valve spring:
1 - tool Ä.60311/R; 2 - mounting base
Fig. 2-45. Checking the leak-proofness of the cylinder head on tool
A.60334:
1, 2, 4 - plugs; 3 - tool plate; 5 - flange with water supply connector
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