Installing The Timing Chain Tensioning Rail; Installing The Timing Chain Guide Rail; 18.5.29 Installing The Rotor; Installing The Piston - KTM 450 EXC EU 2013 Repair Manual

18
ENGINE
191
18.5.27 Installing the liming chain tensioning rail
- Thread in the timing chain tensioning rail from the top. Mount and tighten
screw
Guideline
Screw, timing chain ten·
sioning rail
M6 10 Nm
(7.4lbfft)
Loclile- 243'"
18.5.28 Inslallina: the limina: chain a:uide rail
18.5.29 Installing the rotor
18.5.30 Inslallina: the piston
Slip in the timing chain guide rail from above. Mount and tighten screw
Guideline
Screw, timing chain guide M6
rail
- Mount the spring washer.
- Mou nt the rotor.
10 Nm
(7.4lbflt)
- Mount the spring washer and nul. Tighten the nut.
Guideline
I
Nut, rotor
I
M12x1
Loctile- 243'"
160
Nm
~44.3
Ibf
It)
- Move the joints of the compression ring and oil scraper ring so they are offset by
180·.
- Place the oiled piston on the cylinder. Compress the piston rings using the special
tool.
I
Piston ring mounting tool (60029015000) ( .. p. 297)
- Tap lightly on the piston ring mounting tool from above with a plastic hammer so
that it lies flush with the cylinder.
. / The special tool must press the piston rings together properly and lie flush with
the cylinder.