Section 05 ENGINE (4-TEC)
Subsection 07 (CYLINDER HEAD AND VALVES)
1
R1503motr99A
1. Cylinder head screws M11
Pull up cylinder head
no. 18
.
Remove gasket
no. 19
.
Cleaning
Remove carbon deposits from combustion cham-
ber, exhaust port and piston top.
Inspection
Check for cracks between valve seats, if so, re-
place cylinder head.
Check mating surface between cylinder and cylin-
der head for contamination. If so, clean both sur-
faces.
Installation
For installation, reverse the removal procedure.
Pay attention to the following details.
Ensure dowel pins are in place.
Install new cylinder head gasket.
CAUTION:
Each installation of the cylinder
head requires a new cylinder head gasket. Us-
ing a gasket twice will cause engine damage,
even if the engine had not run.
Install cylinder screws M11
no. 17
.
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 screw is
out of specification, replace by a new. Failure
to replace screws and to strictly follow the
torque procedure may cause screws to loosen
and lead to engine damage.
CYLINDER SCREW M11
SERVICE LIMIT
148.5 mm (5.846 in)
Torque screws according to following sequence.
First torque to 40 N•m (30 lbf•
in
).
Then tighten screws turning an additional 120° ro-
tation with a torque angle gauge and finish tight-
ening with a 90° rotation. Torque screws
no. 16
to 10 N•m (89 lbf•
in
).
1
R1503motr100A
2
1. Cylinder screws M11
2. Angle torque wrench
Remove crankshaft locking tool then install plug
with sealing ring.
CAMSHAFT
Removal
Remove:
– valve cover
– rocker arms
– chain tensioner (refer to CHAIN TENSIONER
REMOVAL in ENGINE BLOCK section)
– camshaft timing gear
– camshaft lock
no. 20
– camshaft
no. 21
.
smr2004-Complete Line Up
263
www.SeaDooManuals.net
Содержание 2006 GTI
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