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17.4.16
Cylinder - Nikasil
17.4.17
Checking/measuring the cylinder
®
- coating
®
Nikasil
is a surface protection layer for a coating procedure
developed by Mahle. The name is derived from the two materials
used in this procedure - a layer of nickel into which is embedded
the particularly hard silicone carbide.
The most important advantages of the
good heat conductivity, resulting in better performance, low
wear, and a lightweight cylinder.
310060-10
-
Check the cylinder bearing surface for damage.
If the cylinder bearing surface is damaged:
-
Change the cylinder and piston.
-
Measure the bore diameter at several locations on
the
0-axis
wear.
Guideline
Cylinder - drill hole diameter
Size I
Size II
-
The cylinder size
310059-10
-
Using a straightedge and the special tool, check the sealing
surface of the cylinder head for distortion.
I
Feeler gauge (590290411 00)
Cylinder/cylinder head -
sealing area distortion
If the measured value does not meet specifications:
-
Change the cylinder.
310061-10
Nikasil
and
0-axis
using a micrometer to identify oval
95.000 ... 95.012 mm
(3.74015 ... 3.74062 in)
95.013 ... 95.025 mm
(3.74066 ... 3.74113 in)
O
is marked on the side of the cylinder.
(8
p. 299)
s 0.10 mm (s 0.0039 in)
ENGINE 17
®
coating are very
...
199
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