5 - 37
PISTONS
The following procedure is applied to all elastic clips (1).
Check:
•
the absence of lines and traces of forcing on each clip Fig.
A.
If outside specifi cation, replace the relevant clips and pistons.
NOTE:_________________________________
Before measuring side clearance between the piston clips,
remove any carbon deposits from the piston clips and
grooves.
Measure:
•
the side clearance between piston clips, using a thickness
gauge Fig. B.
If outside specifi cations, replace the piston and the relevant clips
all together.
Clip
Piston clip side clearance.
Top clips
0.04
-
0.08 mm
Clips
0.05
-
0.09 mm
Measure:
•
The thickness of the top clip.
•
The thickness of the second clip.
See Fig. C.
Clip
Piston clip thickness
Top clips
0.8 -0.01/-0.03 mm
Clips
0.8 -0.02/-0.04 mm
A
B
C
PISTON RINGS CHECK
1
COPY - Moto GB - Grant Martland - grantmartland@motogb.co.uk
Summary of Contents for TRK 502
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