Specifications

2
23
DISASSEMBLING THE ENGINE
BEARINGS AND OIL SEALS
Remove all oil seals which will be replaced
during re-assembly. It is recommended to
extract all bearings while hot by placing
the casings in an oven at a temperature of
150 °C for about twenty minutes, thereby
allowing the bearings to be easily unthre-
aded. The bearings can also be extracted
when cold by using appropriate universal
tools. To do so, it is recommended to place
the half-casings onto a flat, wooden surface
that is big enough to provide ample support
and guarantee surface integrity.
Check the wear-and-tear state of the bea-
rings and replace them if any loosening or
blockage is noticed.
To insert the bearings once again, insert the
half-casings in an oven at 150 °C for appro-
ximately twenty minutes. Cold bearings en-
ter their housing very easily. If the bearings
are not firmly blocked once they cool, they
will probably rotate in their housing the
next time they become hot and in such an
instance the half-casings must be replaced.
2.9
Attention!
before placing the crankcase in the oven, remo-
ve all rubber and plastic parts.