Checking Crankshaft Run-Out At Bearing Pin; Cylinder - Nikasil ® Coating; Checking/Measuring The Cylinder - Husqvarna FE 450 2016 Repair Manual

18.4.13

Checking crankshaft run-out at bearing pin

18.4.14 Cylinder - Nikasil
18.4.15

Checking/measuring the cylinder

-
Measure axial play
crankwebs using the special tool.
I
Feeler gauge (59029041100)
Connecting rod - end play
of lower conrod bearing
If the measured value is less than the specification:
-
Correct it so the dimension is equal to the specified
value.
308881-10
Finishing work
-
Check the crankshaft run-out at bearing pin.
-
Position the crankshaft on a roller block.
-
Turn the crankshaft slowly.
-
Check the crankshaft run-out on both bearing pins.
Crankshaft - run-out on
bearing pin
If the crankshaft run-out at the bearing pin is larger than
the specification:
-
Align the crankshaft.
® coating
® is a surface protection layer for a coating procedure
Nikasil
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 much improved performance,
low wear, and a lightweight cylinder.
304609-10
-
Check the cylinder bearing surface for damage.
If the cylinder bearing surface is damaged:
-
Change the cylinder and piston.
-
Measure the cylinder diameter at several locations on
0-
the and
wear.
Guideline
Cylinder - drill hole diameter
Size I
Size II
f)
between the connecting rod and the
(I!!:! p. 357)
0.20 ... 0.45 mm (0.0079 ...
0.0177 in)
s; 0.16 mm (:5 0.0063 in)
Nikasil
0-axes 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)
18 ENGINE
(� p. 207)
®
coating are very
207