Workshop engine manual

Engine
In order to facilitate the detachment of the stands use
a rubber hammer or delicately the end part of a flat
screwdriver.
Slightly rotate without force the unloaded end of the
gearshaft shifting it from its slot; by doing so, the tension
on the distribution chain will loosen.
Release the distribution chain.
First remove the unloaded end of the gearshaft. Fasten
the distribution chain with copper thread in order to
retrieve it during the following procedure.
Remove the inlet end of the camshaft.
Remove the first link block for the distribution chain by
using the tightening screws.
In case it should be necessary to substitute the distribution
chain at the expected mileage (see the programmed
maintenance chart), it is advisable also to
substitute the gears on the camshaft (INLET
n°8000A3032 - EXHAUST n° 8000A3033).
When refitting, thoroughly clean all surfaces.
Position the timing gear so that the side that has received
no thermal treatment (the one with no timing
marks) is in contact with the NL655-TYPE NORD-
LOCK washers Part No. 8000A3486.
When refitting, always replace the washers and fit
them as shown in the figure. Apply the threadlocking
product STRONG THREAD BLOCKER on new screws
Part No. 8C0085071 and tighten at 21 N·m.
During the operation, take special care in ensuring that
the chain is not dislodged from its position.
NORDLOCK detail
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