2
18
ENGI
N
E DIS
A
S
SEM
BL
Y
2.1.1 CYLINDER HEAD: DISASSEM-
BLING MECHANICAL TEN-
SIONER
A chain which is not well-tensioned can cause:
•
excessive vibrations for the chain which could
make it jump teeth on the camshafts thus dama-
ging the engine;
•
incorrect and premature wear of the support bea-
rings of the camshafts.
The engine is equipped with a hydraulic tensioner
in order to provide the chain with proper tensio-
ning.
To remove it, proceed as follows: remove the cap
1
and the spring
2
.
Fully unscrew the tensioner support
3
from the
cylinder.
To slip the piston
4
out, just push it out from the
tensioner support
3
.
1
3
2
4
Cap and spring removal.
Tensioner support complete with piston.
