Workshop Manual

Drive system
W 02-10-03
0312 1572 - 0138
3/4
© 11/2004
6
2011
Check the piston ring joint clearance
z Insert the piston ring (1) in the cylinder.
Note
Align the piston ring in the cylinder by pushing
the piston.
© 39214 0
1
z Measure the piston ring joint clearance with a feeler
gauge.
Note
If the wear limit is reached, change the piston
ring.
© 39215 0
02 84 02 85 02 86
z Install piston rings.
Note
- Order and position of the piston rings seen
from the piston base.
- On the piston rings (1, 2 and 3) the
identification ”Top” must face the combustion
chamber.
1. Rectangular ring in FL/M engines.
1. Double trapeze ring for BFL/M engines.
2. Minute ring.
3. Roof chamfer ring with hose spring.
© 39216 0
1
3
2