BOMBARDIER SEA-DOO GS 5626 1998, Shop Manual

Page: 92 / 426

Section 04 ENGINE
Subsection 05 (TOP END)
04-05-17
1. Measuring perpendicularly (90
°
) to piston pin axis
2. Auxiliary transfer port
A. 16 mm (5/8 in)
Cylinder Out of Round
Using a cylinder bore gauge, measure cylinder di-
ameter at 16 mm (5/8 in) from top of cylinder.
Measure diameter in piston pin axis direction then
perpendicularly (90
°
) to it. If the difference be-
tween readings exceed specification, cylinder
should be rebored and honed or replaced.
1. Measuring in piston pin axis
2. Measuring perpendicularly (90
°
) to piston pin axis
A. 16 mm (5/8 in)
Piston/Cylinder Wall Clearance
To determine the piston dimension, take the mea-
surement on the piston dome.
1. Piston dome
2. Piston measurement
Adjust and lock a micrometer to the specified val-
ue on the piston dome.
1. Micrometer set to the piston dimension
With the micrometer set to the piston dimension,
adjust a cylinder bore gauge to the micrometer di-
mension and set the indicator to zero.
A
F01D8AA
1
2
A
F01D8BA
A
1
2
F00D0EA
2 1
F00B08A
1