Service procedures - engine Group 21
76
Crankshaft seal, front,
replacing
Special tools: 884983
A new vibration damper with a narrower hub entered produc-
tion as of serial no xxxx/35550. At the same time, a spacing
washer was introduced, part number 877303, installed in
front of the vibration damper.
As of serial no xxx/37616, the polygon hub was changed so
that this spacing washer no longer is needed. See Service
Bulletin 26-01 for more information.
To reduce the risk of oil leaks, a new wear ring for the front
crankshaft seal has been implemented. See Service Bulletin
24-01 for more information.
Note: Wear ring and seal ring should always be replaced at
the same time
1
Remove the fan belt.
2
Undo the bolts (6 ea) to the outer vibration damper (if fitted)
and remove the damper and the pulley.
3
Remove the sealing ring in the timing gear cover and the
wear ring on the pulley.
4
Oil a new sealing ring. Fit it with tool 884983 and 3 M10 x
80 mm bolts. The seal is correctly fitted, 2-3 mm (0.08-
0.12") from the outer edge of the timing gear cover when the
base of the fitting tool touches the timing gear cover.
5
Oil a new wear ring for the pulley. Place the ring against the
internal face of 884983.
Note: Press the wear ring on the pulley using 3 ea M10
bolts or a hydraulic press. The wear ring is correctly fitted
when the tool bottoms.
To Next Page
Loading...
Need help?
General
