17 .4.29 Checking the valves
Info
ENGINE 17
Press the small camshaft bearing in until flush using special
tool
8.
Pressing tool (75029044020) (
IUI
p. 301)
Press the large camshaft bearing in all the way using special
tool
0.
Pressing tool (75029044010) (
IUI
p. 301)
...
The valve stem is hard-chrome plated; wear generally appears at the valve guide.
302808-10
Check the valve plate for run-out.
Valve
Run-out at valve plate
::; 0.05 mm (='> 0.002 in)
If the measured value does not meet specifications:
-
Change the valve.
Check sealing seat
f)
on valve for damage and wear.
If the sealing surface is damaged or worn:
Machine the valve seat.
207