Check values for piston rings
Number | Designation | Engines 134.910/911, 135.930/950 | ||
BE03.10-P-1002-05H | Piston ring end gap | Groove 1 | mm | 0.15 - 0.30 |
Groove 2 | mm | 0.30 - 0.50 | ||
max. | mm | 0.8 | ||
Check values for piston rings
Number | Designation | Engine | ||
BE03.10-P-1002-05G | Piston ring end gap | Groove 1 | mm | 0.2 - 0.35 |
Groove 2 | mm | 0.4 - 0.6 | ||
Groove 3 | mm | 0.2...0.4 | ||
P03.10-2082-11
Shown on plain compression ring for engine 134
1 Clean cylinder bore (1).
2 Insert plain compression ring (2), taper-faced ring and oil scraper ring one after the other above the plain compression ring reversal point (2) in the cylinder barrel (1) and measure end gap using a suitable feeler gauge (3).
Replace plain compression ring (2), taper-faced ring or oil scraper ring if there is wear.
In the case of engines 134 and 135 the end gap of the oil scraper ring cannot be checked due to its three-part structure.
When replacing the plain compression ring (2) and the taper-faced hook scraper ring, the oil scraper ring must also be replaced.