English – 53
Repair Instructions
Cleaning and inspection
Clean all parts and scrape off all gasket remains
from the contact surfaces on the crankcase halves.
Check the following:
1.
That the big-end bearing does not have any radial
play. Axial play is permitted. See gs. 69 and 70.
2.
That the big-end bearing does not have any score
marks or
is discolored on the sides.
3.
That the bearing surface for the gudgeon pin bear-
ing does not have any score marks or is discol-
ored.
4.
That the crankshaft bearing has no play or knocks.
5.
That the sealing surfaces of the sealing rings tted
against the crankshaft are not worn, and that the
rubber is not hard.
6.
That the crankcase is not cracked.
Fig 69
Fig 70
Replacing the crankshaft bearing
Remove:
• the complete crankshaft from the crankcase.
1
Remove the sealing rings from the crankshaft.
See gure 71.
2
Pull the crankshaft bearing from the crankshaft.
See gure 72.
Use the 504 90 90-01 tool.
Fig 72
Fig 71
To Next Page
Loading...
