Installing The Cylinder Head - KTM 400 EXC AUS 2011 Repair Manual

3MNGINE ASSEMBLY
155
- Insert the special tool and press it forcefully to the piston.
- Turn the special tool counterclockwise, thereby pushing the piston pin retainer into
the groove.
I
Insert for piston pin retainer (77329030100) ('r p. 259)
- Ensure that the piston pin retainer is seated properly on both sides.
- Remove the cloth. Keep the timing chain taut.
- Carefully push the cylinder downward, letting the dowels engage.
- Mount the dowels. Put the new cylinder head gasket in place.
- Put the cylinder head in place.
- Put on the cylinder head bolt washers.
- Mount cylinder head bolts. and tighten in a crisscross pattern.
Guideline
Screw, cylinder head M10x1.25 Tightening Lubricated with
sequence: engine oil
Tighten diag-
onally, begin-
n i ng with the
rear screw
on the chain
shaft.
Step 1
10 Nm
(7.4 Ibf ft)
Step 2
30 Nm
(22.1Ibfft)
Step 3
50 Nm
(36.9 Ibf ft)
- Mount and tighten
screw •.
Guideline
I
Screw, cylinder head 110 Nm (7.4 Ibf
It)
I
3MNGINE ASSEMBLY
155
- Insert the special tool and press it forcefully to the piston.
- Turn the special tool counterclockwise, thereby pushing the piston pin retainer into
the groove.
I
Insert for piston pin retainer (77329030100) ('r p. 259)
- Ensure that the piston pin retainer is seated properly on both sides.
- Remove the cloth. Keep the timing chain taut.
- Carefully push the cylinder downward, letting the dowels engage.
- Mount the dowels. Put the new cylinder head gasket in place.
- Put the cylinder head in place.
- Put on the cylinder head bolt washers.
- Mount cylinder head bolts. and tighten in a crisscross pattern.
Guideline
Screw, cylinder head M10x1.25 Tightening Lubricated with
sequence: engine oil
Tighten diag-
onally, begin-
n i ng with the
rear screw
on the chain
shaft.
Step 1
10 Nm
(7.4 Ibf ft)
Step 2
30 Nm
(22.1Ibfft)
Step 3
50 Nm
(36.9 Ibf ft)
- Mount and tighten
screw •.
Guideline
I
Screw, cylinder head 110 Nm (7.4 Ibf
It)
I