PROCEDURE
1
Measure the thickness of piston ring piece (002,
).
Fig 8-87
Piston groove clearance - ring piece
2
Put the piston ring piece (002) into the piston ring groove.
3
Use the
(001) to measure the clearance X1 between the face of the piston
ring piece (002) and the groove.
NOTE:
You must measure the groove height at a minimum of four locations around
the circumference of the piston head (003).
4
Use the formula that follows to calculate the piston ring clearance:
C = GH - RT
Where:
•
C = Clearance
•
GH = the measured height of the piston ring groove (mm)
•
RT = the nominal piston ring thickness (mm).
5
Refer to
for the maximum dimensions for worn areas.
NOTE:
If the clearance at X1 is more than the permitted value, you must repair the
piston head. For the repair of piston heads, speak to the nearest WinGD
Service Center.
Do not install a piston head that has clearances near the maximum value
because the service life will be too short.
CLOSE UP
•
None
X82-B
AA00-3425-01AAA-361C-A
Maintenance Manual
Piston ring groove (piston removed) - do a check
Winterthur Gas & Diesel Ltd.
- 501 -
Issue 001 2020-10
Summary of Contents for X82-B
Page 825: ...Approved TIGHTENING INSTRUCTIONS Rev B Page 1 9...
Page 826: ...Approved TIGHTENING INSTRUCTIONS Rev B Page 2 9...
Page 827: ...Approved TIGHTENING INSTRUCTIONS Rev B Page 3 9...
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