© 06/2006 8159-001
1/6
TCD 2015
Cylinder head
I 01-06-04
6
Renewing the valve guide
(oversize, pressed version)
Commercial available tools:
– Reamers
– Plug gauges
– Cylinder head machining
tool
–Press
– Press-out pin
– Press-in pin
– Industrial vacuum cleaner
– Nitrogen (liquid)
– W 01-05-01
– W 01-06-03
Danger!
Danger of injury, do not touch supercooled
components or the liquid nitrogen!
Wear protective gloves and glasses!
Attention!
The press-in process must be carried out
without interruption as a result of the tem-
perature difference between the cylinder
head and the valve seat insert.
The necessary work steps must be practi-
sed before pressing in.
The relevant manufacturer’s specifications
must be observed when working with the
cylinder head machining tool.
Checking the valve guide
z Check valve guides.
W 01-06-03
z Check valve guide with plug gauge (1).
P01 14
P01 15
The target area of the plug gauge must be
able to move upwards and downwards with
light suction.
1
© 39737-1
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