KTM 950 ADVENTURE 2003, Руководство пользователя, Страница: 67 / 160

6-13
Cylinder head rear with timing chain
– Mount a new base gasket.
NOTE: make sure the crankshaft is blocked in the cylinder rear TDC
position.
– Fit the timing chain and chain tensioning rail in the cylinder.
NOTE:
– The chain guide is mounted on the exhaust side of cylinder rear.
– The timing chain should be drawn up and held in the chain tunnel
with a thin welding wire
1
or a rubber band.
– Push the cylinder head and cylinder over the stud bolts until the
piston pin can be pressed into the piston by hand from the output
end. Insert a new piston pin retainer with a screwdriver into the
piston groove.
! CAUTION !
– D
O NOT PULL THE PISTON OUT OF THE CYLINDER UP TO THE OIL SCRAPER RING
SINCE THE PISTON RING WILL BE DAMAGED BY THE LOWER EDGE OF THE
CYLINDER
.
– T
HE OPENING TOWARDS THE CRANKSHAFT SHOULD BE COVERED WITH A CLOTH
TO PREVENT THE PISTON PIN RETAINER FROM FALLING OUT OF THE ENGINE CASE
.
– T
HE PISTON PIN RETAINER
2
MUST BE IN THE POSITION SHOWN IN THE
ILLUSTRATION
.
– Push the cylinder head and cylinder down. Mount the cylinder head
nuts.
The cylinder head nuts are tightened in 2 stages.
1st stage:
– Tighten the cylinder head nuts crosswise. Use the special nut
600.29.083.000 for the internal nuts
3
and the special wrench
600.29.081.000 for the outer nut
4
.
! CAUTION !
– T
HE TIGHTENING TORQUE FOR THE
1
ST STAGE IS
25 N
M
.
SINCE THE SPECIAL
WRENCH
600.29.081.000
IS USED FOR NUT
4
,
IT MUST BE TIGHTENED TO
23
N
M
.
– T
HE TORQUE WRENCH USED MUST BE USED IN LINE WITH THE SPECIAL WRENCH
600.29.081.000 (
SEE ILLUSTRATION
).
– Tighten the two outer nuts
5
to 8 Nm.
2nd stage:
– Tighten the cylinder head nuts crosswise.
! CAUTION !
– T
HE TIGHTENING TORQUE FOR THE
2
ND STAGE IS
43 N
M
.
SINCE THE SPECIAL WRENCH
600.29.081.000
IS USED FOR NUT
4
,
IT MUST BE TIGHTENED TO
36 N
M
.
– T
HE TORQUE WRENCH USED MUST BE USED IN LINE WITH THE SPECIAL WRENCH
600.29.081.000 (
SEE ILLUSTRATION
).
1
3
4
2
5
5