Cylinder, Piston; Tools, Aids; Removing The Cylinder - Stihl MS 500i Service Manual

27 Cylinder, Piston

2
27.1

Tools, aids

Screwdriver – 0000 890 2300 or equivalent tool
–
Clamping strap – 0000 893 2600
–
Socket T27x125 – 0812 542 2104 or equivalent tool
–
Torque wrench – 5910 890 0302 or equivalent tool
–
Screwdriver T27x200 – 5910 890 2415 or equivalent
–
tool
Piston support – 5910 893 5301
–
Assembly drift – 1108 893 4700
–
Assembly tool - 5910 890 2212
–
STIHL press-in fluid OH 723 – 0781 957 9000
–
Two-stroke engine-oil
–
27.2

Removing the cylinder

Prepare for repair, @ 3.1.
N
Remove the filter cover.
N
Remove air filter.
N
Remove shroud.
N
Unplug spark plug boot and pull ignition lead out of
N
the guides.
Remove the spark plug.
N
Remove starter, @ 10.2.
N
Remove filter base, @ 15.2.
N
Remove throttle shutter housing and sleeve, @ 15.4.
N
54
1
M6x28 (15 Nm / 133 lbf. in.)
3
4
5 6
7
Detach injection pump,@ 9.2.
N
Remove the front handle, @ 9.2
N
Unscrew the AV element screw between the tank
N
housing (2) and the crankcase, @ 17.2.
Insert black plug of the generator on the control unit
N
and engage, @ 19.7.
Pull the generator wiring harness out of the guides on
N
the tank housing and on the air guide hood,@ 22.2.
Insert blue plug of the sensor on the control unit and
N
engage, @ 19.7.
Pull the sensor cables out of the cable holder on the
N
tank housing.
Remove the sensor wiring harness from the injection
N
module, @ 22.3.
Remove fuel hose, @ 20.4.
N
Remove fuel return hose, @ 20.6.
N
Remove the impulse hose from the guide in the tank
N
housing and pull it off the crankcase, @ 20.8.
Remove tank housing.
N
Remove manifold, @ 25.3.
N
Remove air guide shroud, @ 25.2.
N
Remove injection module,@ 25.8.
N
Remove muffler and heat shield,@ 26.2.
N
If necessary, remove the hood lock, @ 7.6.
N
If necessary, remove the decompression valve, @
N
8.2.
10
9
4
8
MS 500i