Maintenance3425−1/A1
Winterthur Gas & Diesel Ltd.
2/ 9
1.1 Chrome-ceramic Layer − Measure (Piston Installed)
WARNING
Injury Hazard: Before you operate the turning gear, make sure
that no personnel are near the flywheel, or inside the engine.
1) Read the data in the suppler documentation for the tool Permascope MP0 (94356).
2) Calibrate the Permascope MP0 (94356). Use the calibration foils and the top flank of
a spare top piston ring to get a correct setting.
3) Use the turning gear to move the piston almost to BDC (so that you can see the
piston rings).
4) Clean the surface of the piston ring (1, Fig. 1) at the locations P1 to P9.
5) Put the sensor of the Permascope MP0 (94356) against the middle of the piston
ring (1).
6) Record the value on the digital display of the Permascope MP0 (94356).
7) Compare the measured data with the limits given in 0330−1 Clearance Table, Piston
and Piston Rings. If the recorded data is not in the limits given, you must do an
overhaul of the piston head.
WCH01216
94356
1
Minimum
Recommended
Locations to Measure the Thickness of the
Chrome-ceramic Layer on the Piston Ring
P3
P5
P7
P1P9
P5
P1P9
Fig. 1
Piston Rings: Wear of Piston Rings and Ring Grooves
2015
To Next Page
Loading...
