Piston Rings - Sea-doo RXT iS 255 2009 Shop Manual

Section 02 ENGINE
Subsection 11 (CYLINDER BLOCK)
1. Arrow toward exhaust side
2. Correctly install bearings and carefully clean
split surface on both sides (cracked area).
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.
158
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.
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
TAPER-FACE
OIL SCRAPER RING
SERVICE LIMIT
ALL
0.025 mm - 0.070 mm
(.001 in - .0028 in)
0.015 mm - 0.060 mm
(.0006 in - .0024 in)
0.020 mm - 0.055 mm
(.0008 in - .0022 in)
0.15 mm (.006 in)
smr2009-026