BOMBARDIER SEA-DOO GS 5626 1998, Shop Manual

Page: 117 / 426

Section 04 ENGINE
Subsection 06 (BOTTOM END)
04-06-13
Connecting Rod Straightness
Align a steel ruler on edge of small end connect-
ing 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
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
1. Measuring MAG side deflection in crankcase
Remove crankshaft bearings and check deflection
again on V-shaped blocks as illustrated.
1. Measuring MAG side deflection on V-shaped blocks
1. Measuring PTO side deflection on V-shaped blocks
NOTE: Crankshaft deflection cannot be correctly
measured between centers of a lathe.
MEASUREMENT MAG SIDE PTO SIDE
Crankshaft
deflection (max.)
0.050 mm
(.002 in)
0.030 mm
(.001 in)
F01D1Q A
1
2
F01D1SA
1
F01D1TA
1
F01D1UA
1
F01D1VA
1