Man D 2866 LUE 605, Repair Manual

Page: 140 / 174

20
Ø
Ø
2,5
I
II
III
Limit values
Service Data
Dimensions
138
Pistons
Compression height: 89,70-89,75 mm
0,2 mm: 89,50-89,55 mm
0,4 mm: 89,30-89,35 mm
0,6 mm: 89.10-89,15 mm
Piston protrusion above crankcase:
0,013-0,331 mm
46,008-46,016 mm
Piston bolt diameter:
45,994-46,000 mm
127,840-127,870 mm
Piston weight difference per set in an
engine: max. 100g
Piston ring grooves
3,695-3,725 mm
3,040-3,060 mm
4,020-4,040 mm
Piston rings
1st ring - keystone ring
Height:
3,675-3,695 mm
2nd ring - minute ring:
Height:
2,978-2,990 mm
Axial clearance: 0,050-0,082 mm
3rd ring - bevelled ring
Height:
3 ,97 5 - 3 ,990 mm
Axial clearance: 0,030-0,062 mm
Ring gap:
1st ring:
0,50-0,70 mm
Wear limit: 1,00 mm*
2nd ring: 0,45-0,70 mm
Wear limit: 1,00 mm*
3rd ring: 0,25-0,40 mm
Wear limit: 0,80 mm*
*
Measured in new liner.
2,5
I
II
III