Camshaft - SeaDoo Rotax 1503 4-Tec 2005 Engine Shop Manual

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.
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
smr2005-036-002_a
NOTE: Torque screws no. 16 after the tightening
of the cylinder head screws is finished.
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).
smr2005-036
Torque
148.5 mm (5.846 in)
www.SeaDooManuals.net
Section 01 ENGINES (1503 4-TEC)
Subsection 06 (CYLINDER HEAD)
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 CYLINDER BLOCK
section)
– camshaft timing gear
– camshaft lock no. 20
– camshaft no. 21.
1. Camshaft lock
2. Camshaft
79