Sea-doo RX Shop Manual page 91

Section 04 ENGINE
Subsection 05 (TOP END)
Cylinder Base Gasket
Install new base gasket.
NOTE: The general procedure is to install a new
gasket of the same thickness. However, if you do
not know the gasket thickness that was installed
or if a crankshaft and/or crankcase repair or re-
placement was involved, refer to the COMBUS-
TION CHAMBER VOLUME MEASUREMENT to
properly determine the required gasket thickness.
Five thicknesses of cylinder base gaskets are
available for a precise adjustment of the squish
gap.
To identify gasket thickness, refer to the identifi-
cation holes on the gasket.
Cylinder Block
947 Carburetor-Equipped Engines
Install studs no. 32. Apply Loctite 243 to threads
and torque studs to 15 N•m (11 lbf•ft). Refer to
exploded view to see what end to insert in crank-
case.
Remove O-rings from studs.
All Engines
Install cylinder base gasket no. 10. There is only
one way to install gasket.
The cylinder block is positioned with locating dowels.
Line up dowels with corresponding holes in cylin-
der block.
1. Dowels
04-05-18
To easily slide cylinder block over pistons, use ring
compressor (P/N 290 876 965).
1. Slide this edge
NOTE: For each ring, make sure to align ring end
gap with piston locating pin.
Install cylinder block.
947 DI Engines
Cylinder Screw
Apply Loctite 518 on cylinder head contact surface.
Apply synthetic grease below the screw head.
Apply also Loctite 243 (blue) on screw threads.
Install and torque screws to 40 N•m (30 lbf•ft) in the
indicated order. Refer to the following illustration.
947 Carburetor-Equipped Engines
Install O-rings no. 31.
CAUTION: The O-rings must be installed and
properly positioned in the cylinder block. The
O-rings are meant to dampen stud vibration.
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