Section 02 ENGINE
Subsection 11 (CYLINDER BLOCK)
1
R1503motr30A
1. Arrow toward exhaust side
2. Correctly install bearings and carefully clean
split surface on both sides (cracked area).
3
R610motr79A
1
2
1. Half bearing of connecting rod big end
2. Split surface of the connecting rod
3. Protrusion of bearing in line with connecting rod groove
3. Torque
NEW
connecting rod screws
no. 11
as
per following procedure:
3.1 Install screws and torque to 45 N•m
(33 lbf•ft). Do not apply any threadlocker
product.
3.2 Finish tightening the screws with an ad-
ditional 90° turn using an angle torque
wrench.
NOTICE
Failure to strictly follow this proce-
dure may cause screw to loosen and lead to
engine damage. Knowing that the screws have
been stretched from the previous installation,
it is very important to use new screws at as-
sembly.
R1503motr31A
1
1. Angle torque wrench
PISTON RINGS
Piston Ring Removal
Remove piston as described above.
Remove rings.
Piston Ring Inspection
Ring/Piston Groove Clearance
Using a feeler gauge measure each ring/piston
groove clearance. If the clearance is too large, the
piston and the piston rings should be replaced.
RING/PISTON GROOVE CLEARANCE
NEW
RECTANGULAR
0.025 mm - 0.070 mm
(.001 in - .0028 in)
TAPER-FACE
0.015 mm - 0.060 mm
(.0006 in - .0024 in)
OIL SCRAPER RING
0.020 mm - 0.055 mm
(.0008 in - .0022 in)
SERVICE LIMIT
ALL
0.15 mm (.006 in)
158
smr2009-026
Summary of Contents for GTX Limited iS 255 2009
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Page 554: ...2009 Sea Doo 4 TEC iTC iS Series RXT iS 255 GTX Limited iS 255 smr2009 045 001 ...
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