Table of Contents
Advertisement
6
Disassembly / Reassembly
136
138
- 72 -
137
KD 702_1003_1404 Workshop Manual_cod. ED0053029340_1° ed_ rev. 00
Shoulder half rings, oversized elements
Dimensions (mm):
C
STD
22,787÷22920
1
22,987÷23,120
a
2
23,087÷23,220
a
3
23,187÷23,320
a
* A of Fig. 134.
** B of Fig. 135.
Grinding B as per relevant table, you can mount the following
half rings:
1
Oversized element Half rings 1 and 2 + 0.10 mm on both
st
sides of the bearing
2
Oversized element Half rings 1 and 2 + 0.10 mm on one
nd
side of the support and + 0.20 mm on
the other side.
3
Oversized element Half rings 1 and 2 + 0.20 mm on both
rd
sides of the bearing.
Crankshaft front and back oil seal rings
Caution – Warning
An ambient temperature below -35°C may damage the rings.
The front oil seal ring 1 inserted into the oil pump cover and the
back one 2, in the flywheel side flange.
If warped, hardened, or cracked, replace them.
For the replacement:
- Carefully clean the housing
- Keep the ring immersed in engine oil for about half an hour.
- Drive it into its housing with a buffer exercising a uniform
pressure on the whole front surface. Be sure that the two
surfaces A and B meet on the same level.
- Refill the interior hollow with grease and lubricate the seal lip
with thickened oil.
Note: Before major engine overhaul, in case of oil leakage in
the seal area of rings 3 and 4, you can remedy this by
replacing the rings and pushing them about 2 mm deeper
with respect to the previous ones.
If the rings are black it means zones 3 and 4 of the
crankshaft are tempered. In this case it is necessary to
remount a ring of the same colour.
If the rings are brown it means that zones 3 and 4 of the
crankshaft are not tempered. In this case it is necessary
to remount brown coloured rings.
B**
A*
23,050÷23,100
23,250÷23,300
0,130÷0,313
23,350÷23,400
23,450÷23,500
Advertisement
Table of Contents
