Reference
Modification no.
- 0 -
Page
254
Date
1997 02 01
Main
914 F
01480
14.6.3) Dimensions of pistons and piston rings
See Pic. 256, 259, 260 and 261.
dimensions new wear limit
See Wear Limits, Chapter 15).
14.6.4) Piston pin
Measure piston pin and check for traces of seizure in area of con-rod seat. In
case of distinct traces of seizure, renew piston pin even if dimensions are
correct.
dimensions new wear limit
See Wear Limits, Chapter 15).
The circlips for axial piston pin securing must be used only once and therefore
must be renewed.
14.6.5) Cylinder checking
See Pic. 262 and 263.
Nickel-silicon coated cylinder wall. All 4 cylinders are identical. Clean
cooling fins Q of cylinder. Remove carbon deposits from top end W of
cylinder bore. Clean sealing faces E on top and bottom side and inspect
cylinder.
Measure cylinders as per illustration and record dimensions in the Dimen-
sion Sheet, Chapter 16). Determine piston to wall clearance, see Chapter
14.6.1). If the wear limit of the cylinder is reached, renew cylinder and piston.
Dimensions new wear limit
See Wear Limits, Chapter 15).
â—† NOTE: Slight oil carbon residues on the cylinder sealing face
indicate leakage. True up cylinder along with cylinder head.
D3
D1
D2
0
5
40
76
Pic. 263
Pic. 262
1
3
3
2
00297
00298
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