
Section 04
ENGINE
Subsection 06
(BOTTOM END)
SMR2002-025_04_06A.FM
04-06-15
Crankshaft Alignment at Connecting
Rod Journal
Counterweights can also be twisted on connect-
ing rod journal on any or both cylinder(s).
1. Connecting rod journal alignment here
Such misalignment may cause a crankshaft hard
to be manually turned. Verification can be done by
measuring deflection each end of crankshaft.
If deflection is found greater than specified toler-
ance, this indicates worn bearing(s), bent and/or
disaligned crankshaft. Proceed with the disassem-
bly of the engine.
Disassembled Engine
The following verifications can be performed with
the engine disassembled.
Crankcase
Inspect plane surfaces for warpage. Small defor-
mation can be corrected by grinding surface with
a fine sandpaper. Install sandpaper on a surface
plate and rub part against oiled sand paper.
Bearing
Inspect crankshaft bearings
no. 4
. Check for cor-
rosion, scoring, pitting, chipping or other evidence
of wear. Make sure plastic cage is not melted. Ro-
tate and make sure they turn smoothly.
Crankshaft
NOTE:
If crankshaft and/or components are found
defective, it must be repaired by a specialized
shop or replaced.
Connecting Rod Straightness
Align a steel ruler on edge of small end connecting
rod bore. Check if ruler is perfectly aligned with
edge of big end.
1. Ruler must be aligned with edge of connecting rod here
2. Align ruler here
Crankshaft Deflection
All Models
Crankshaft deflection is measured each end with
a dial indicator.
First, check deflection with crankshaft in crank-
case. If deflection exceeds the specified toler-
ance, it can be either ball bearings wear, bent or
twisted crankshaft at connecting rod journal.
1. Measuring PTO side deflection in crankcase
F01D1NB
1
MEASUREMENT
MAG SIDE
PTO SIDE
Crankshaft
deflection (max.)
0.050 mm
(.002 in)
0.030 mm
(.001 in)
F01D1QA
1
2
F01D1SA
1
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Summary of Contents for GTI 5558
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Page 542: ...SMR2002 051_16_00A FM 2002 GTI MODEL F17Z01 www SeaDooManuals net ...
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