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17 ENGINE
-
-
300117-10
17.4.21 valves, checking
310437-10
302809-10
17.4.22 valve springs, checking
310438-10
210
Remove the valve spring retainer and valve springs.
Mark the valve springs according to their normal built-in posi
tion.
Pull the valve down out of the valve guide.
Remove valve stem seal
8
with the special tool.
I Valve stem seals plier (77229010000) (
a
p. 309)
Remove valve spring seat
0.
Mark the valves corresponding to their installation position.
Info
Place the valves in a carton corresponding to their
installation position and label them.
- Check the valve plate for run-out.
Valve - run-out
At the 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.
- Check the valve springs for breakage and wear (visual
check).
If the valve spring is broken or worn:
Change the valve spring.
Measure the length of the valve springs.
Valve spring
Minimum length, outer
intake valve
142.40 mm (1.6693 in)
..
Содержание F2101R1
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