Ski-Doo Ski Doo GTX 2005 [1088/1429] Inspection

Ski-Doo Ski Doo GSX 2005 [1088/1429] Inspection
Section 04 ENGINE (4-TEC)
Subsection 05 (CYLINDER AND CYLINDER HEAD)
1
R1004motr90A
1. Cylinder head screws M11
Pull up cylinder head no. 71.
Remove gasket no. 11.
Inspection
Check for cracks between valve seats, if so, re-
place cylinder head.
Check gasket for cracks or other damages.
Check mating surface between cylinder and cylin-
der head for contamination. If so, clean both sur-
faces.
Check oil supply hole in cylinder head for contam-
ination.
R1004motr177A
1
3
2
1. Oil supply to camshaft bearing journal- big end
2. Oil supply to camshaft bearing journal- small end
3. Oil back flow through chain compartment to engine bottom
Installation
NOTE: The cylinder heads are not identical in de-
sign. Do not invert the cylinder heads at assem-
bly.
For installation, reverse the removal procedure.
Pay attention to the following details.
NOTE: At installation, replace gasket no. 11.
Ensure dowel pins are in place.
Install cylinder head screws M6 and M11.
Torque screws as per following procedure.
CAUTION: This assembly uses stretch screws.
As the screws have been stretched from the
previous installation, it is very important to
measure each screw at assembly. If screws
are out of specification, replace by a new ones.
Failure to replace screws and to strictly follow
the torque procedure may cause screws to
loosen and lead to engine damage.
CYLINDER HEAD SCREW M11
SERVICE LIMIT 216.5 mm (8.524 in)
Torque cylinder head screws M11 in criss-cross
sequence to 25 Nm(18lbfft).
Torque cylinder head screws M11 in criss-cross
sequence to 50 Nm(37lbfft).
Finish tightening screws turning an additional
90° rotation with a torque angle gauge then,
torque cylinder head screws M6 to 9 Nm
(80 lbfin).
2
R1004motr91A
1
1. Cylinder screws M11
2. Angle torque wrench
mmr2005-025 221

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