2
17
engi
n
e dis
a
s
sem
bl
y
Cap and spring removal.
Tensioner support complete with piston.
2.1.1 CYLINDER HEAD: DISAS-
SEMBLING MECHANICAL
TENSIONER
A chain which is not well-tensioned can cause:
•
excessive vibrations for the chain which could
make it jump teeth on the camshafts thus da
-
maging the engine;
•
incorrect and premature wear of the support
bearings of the camshafts.
The engine is equipped with a hydraulic tensio
-
ner in order to provide the chain with proper ten
-
sioning.
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
