Workshop Manual

0312 1642 - 0138
13/22
© 11/2004
4
4 Technical data
4.1 Test and adjustment data
2011
02 78 Piston bolt bore FM engines 26.004 - 26.010 mm
BFL/M engines 30.004 - 30.010 mm
20 79 Determine piston class • Piston class A
• Stroke 112 mm
• only in FL/M engines
196.380 - 196.490 mm
• Piston class B
• Stroke 112 mm
• only in FL/M engines
196.491 - 196.690 mm
02 80 Piston rings
02 81 Piston ring 1st ring
• Rectangular ring
• External diameter/
internal diameter x
height
• FL/M engines
94.0 x 2.0 x 3.9
mm
Piston ring 1st ring
• Double-sided trapezoidal ring
• External diameter/
internal diameter x
height
• BF3/4L/M engines
94.0 x 3.0 x 3.9
02 82 Piston ring 2 ring
• minute ring
External diameter/
internal diameter x
height
94.0 x 1.99 x 4.05
mm
External diameter/
internal diameter x
height
91.0 x 2.5 x 3.8
02 83 Piston ring 3 ring
• Roof chamfer ring
External diameter/
internal diameter x
height
94.0 x 3.0 x 3.73
mm
Piston ring 3 ring
• Oil slit ring
External diameter/
internal diameter x
height
94.0 x 2.99 x 2.9
02 84 Piston ring joint clearance of the 1st
piston ring
• BFL/M engines
• Double-sided
trapezoidal ring
• Wear limit
0.3 - 0.5
mm
Piston ring joint clearance of the 1st
piston ring
• FL/M engines
Rectangular ring 0.3 - 0.5
Wear limit 0.8
ID
No.
Name Additional information Value Unit