Section 04
ENGINE (2-STROKE)
Subsection 05
(TOP END)
04-05-14
SMR2003-010_04_05A.FM
CLEANING
Discard all gaskets and O-rings.
Clean all metal components in a solvent.
Clean water passages and make sure they are not
clogged.
Remove carbon deposits from cylinder exhaust
port, RAVE valve (
787 RFI
and
947 DI engines
),
cylinder head and piston dome.
Clean piston ring grooves with a groove cleaner
tool, or a piece of broken ring.
INSPECTION
Visually inspect all parts for corrosion damage.
Inspect piston for damage. Light scratches can be
sanded with a fine sand paper.
NOTE:
When repairing a seized engine, connect-
ing rods should be checked for straightness and
crankshaft for deflection/misalignment. Refer to
BOTTOM END for procedures.
Inspect plane surfaces for warpage. Small defor-
mation can be corrected by grinding surface with
a fine sand paper. Install sand paper on a surface
plate and rub part against oiled sand paper.
The inspection of engine top end should include
the following measurements.
N.A.: Not Applicable
NOTE:
Replacement cylinder sleeves are avail-
able if necessary. Also, oversize pistons of 0.25
mm (.010 in) are available for all engines and over-
size pistons of 0.5 mm (.020 in) are available for
the 717 engine.
ENGINE
MEASUREMENT
TOLERANCES
NEW PARTS
(min.) (max.)
WEAR
LIMIT
Cylinder taper
N.A.
0.05 mm
(.002 in)
0.1 mm
(.004 in)
Cylinder out of round
N.A.
0.008 mm
(.0003 in)
0.08 mm
(.003 in)
Piston/cylinder wall
clearance for the
717 engine
0.10 mm
(.0039 in)
N.A.
0.20 mm
(.008 in)
Piston/cylinder wall
clearance for the
787 RFI engine
0.13 mm
(.005 in)
N.A.
0.22 mm
(.009 in)
Piston/cylinder wall
clearance for the
947 DI engine
0.12 mm
(.0047 in)
N.A.
0.20 mm
(.008 in)
Ring/piston groove
clearance for the
717 engine
0.025 mm
(.001 in)
0.070 mm
(.0027 in)
0.20 mm
(.008 in)
Ring/piston groove
clearance for the
787 RFI engine
0.025 mm
(.001 in)
0.070 mm
(.0027 in)
0.24 mm
(.009 in)
Ring/piston groove
clearance for the
947 DI engine
0.044 mm
(.002 in)
0.089 mm
(.003 in)
0.20 mm
(.008 in)
Ring end gap for the
717 engine
0.25 mm
(.010 in)
0.40 mm
(.016 in)
1.0 mm
(.039 in)
Ring end gap for the
787 RFI engine
0.40 mm
(.016 in)
0.55 mm
(.022 in)
1.0 mm
(.039 in)
Ring end gap for the
947 DI engine
0.55 mm
(.022 in)
0.7 mm
(.028 in)
1.1 mm
(.043 in)
www.SeaDooManuals.net
Содержание 2003 GTI LE RFI
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Страница 770: ...F00Z0C 2003 GTI LE MODEL WARNING www SeaDooManuals net ...
Страница 771: ...F00Z0E 2003 GTI LE RFI MODEL WARNING www SeaDooManuals net ...
Страница 772: ...F00Z0J 2003 RX DI MODEL WARNING www SeaDooManuals net ...
Страница 773: ...F00Z0I 2003 GTX DI MODEL WARNING www SeaDooManuals net ...
Страница 774: ...F00Z0K 2003 XP DI MODEL WARNING www SeaDooManuals net ...
Страница 775: ...F00Z0F 2003 GTX 4 TEC MODEL WARNING www SeaDooManuals net ...
Страница 776: ...F00Z0G 2003 GTX 4 TEC MODEL WITH AUXILIARY DESS MODULE WARNING www SeaDooManuals net ...
Страница 777: ...F00Z0B 2003 GTX 4 TEC AND GTX 4 TEC SUPERCHARGED MODELS WARNING www SeaDooManuals net ...
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