Skoda Octavia 1996 Service Manual page 62

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15
valve
 
©
Notes:
♦ Cylinder heads with cracks between the
valve seats or between a valve seat ring and
          ! " # 

the spark plug thread, can continue to be
©
used without any reduction in life provided
these are only initial slight cracks which are
not more than 0.3 mm in width, or cracks
exist only on the first 4 thread turns of the
spark plug thread.
♦ After installing new bucket tappets, wait
about 30 minutes before starting the engine
$ % #  &
©
(otherwise valves may strike pistons).
♦ After carrying out work on the valve gear,
carefully crank engine at least 2 revolutions
to ensure that no valve strikes a piston when
@ A B @ C
the engine is started.
1 100
♦ use counterholder MP 1-216 for slack-
ening and tightening
2
♦ with sensor rotor for Hall phase sen-
sor -G40-
♦ to remove and install, take off toothed
belt ⇒ page 13-6
♦ installation position fixed by parallel
key -item 4-
♦ replacing ⇒ page 15-16
♦ pay attention to different versions
⇒ page 13-12, Fig. 2
------------ ------------
§ ¡ ¨ ¢
Cylinder Head, Valve Gear
' (    & & # & " #
)
©
0 1   2
©
3 #   4 5 6
!  
©
7 ©        
© 3 8 ! " #     # 
♦ ensure tightly fitted
5
♦ installation position ⇒ Fig. 2
♦ installation sequence ⇒ page 15-17.2,
Removing and installing camshaft
♦ apply a thin film of sealant AMV 174
004 01 to contact surface of bearing
©  & & #  
cap 1
   4 5 6
©
♦ inspecting axial play ⇒ Fig. 1
   4 5 6
♦ removing and installing
©
⇒ page 15-17.2
♦ runout: max. 0.05 mm
8 t
♦ do not mix up
♦ with hydraulic valve clearance com-
pensation
♦ inspecting ⇒ page 15-19
  #   #  &
♦ place down with contact surface fac-
©
ing down
♦ before installing, inspect axial play of
$ © 6 8 4 9 #
camshaft ⇒ Fig. 1
♦ oil contact surface
9
' ©  #  9
10 Valve retainer
11 Valve
♦ removing and installing
- with cylinder head removed:
©
use MP 1-211 and MP 1-213 together
with valve supporting plate MP 1-218
- with cylinder head installed:
⇒ page 15-20, Replacing valve stem
seals
12 Valve
♦ replacing ⇒ page 15-20
1 Valve
♦ inspecting ⇒ page 15-22
♦ replacing ⇒ page 15-22
♦ repair version with collar
1 Cylinder
♦ pay attention to Note ⇒ page 15-14
♦ reworking valve seats ⇒ page 15-23
15 Valve
♦ do not rework, only grinding in is per-
missible
♦ valve dimensions ⇒ Fig. 3
OCTAVIA
Edition 10.02
S00.5105.54.20