Gilera Nexus 500, Workshop Manual, Page: 140 / 406

Removing the cylinder - piston assy.
- Remove the timing chain.
- Loosen the fastening screw and remove the
spacer and the tightening sliding block.
N.B.
IT IS ADVISABLE TO MARK THE CHAIN IN OR-
DER TO ENSURE THAT THE INITIAL DIREC-
TION OF ROTATION IS MAINTAINED.
- Extract the cylinder with the relevant gasket and
the centring dowel.
N.B.
THE SECOND CENTRING IS ENSURED BY A
PIN SET INTO THE CYLINDER.
CAUTION
TO PREVENT DAMAGES TO THE PISTON,
SUPPORT IT WHILE REMOVING THE CYLIN-
DER.
- Remove the 2 piston pin locking rings by the spe-
cific housings.
- Extract the pin and remove the piston.
N.B.
USE PAPER OR A CLOTH TO CLOSE THE CYL-
INDER HOUSING MOUTH ON THE CRANK-
CASE TO PREVENT SLIPPAGE OF ONE OF
THE PIN LOCKING RINGS INTO THE CASE.
- Remove the piston sealing rings and the oil scra-
per.
CAUTION
NOTE THE ASSEMBLY POSITIONS OF THE
LININGS TO PREVENT INVERTING THE POSI-
TION IN CASE OF REUSE.
N.B.
BE CAREFUL NOT TO DAMAGE THE SEALING
RINGS DURING REMOVAL.
Engine
Nexus 500
ENG - 58