- 42 -
Maintenance
B
Twist off the plugs that close the vacuum tubes. The
number of the cylinder to which the rubber plug is con-
nected is written on the plug itself (A).
The vacuum tubes are located on the right and left side
of the vehicle.
Left side: Cylinders 1 and 2
Right side: Cylinders 3 and 4
Connect the measuring device with the rubber pipes.
Each pipe must match the cylinder to which it is con-
nected.
Fit in the Starter key and start the vehicle.
All bypass adjusting screws (1) must first be opened by
turning them 1.5 turns off the ‘all closed’ position.
We recommend starting from the cylinder with the
highest mercury level.
When this cylinder is taken as a reference, the by-pass
screws of the other cylinders should then be tightened
until the mercury levels have been aligned.
The following positions for the by-pass screws are
admitted: min. 0,5 turns - max. 3,5 turns.
If the lower limit is exceeded, we recommend accep-
ting a minimum position of 0.5 turns and undoing the
screw of the cylinder which had been taken as an ini-
tial reference, without exceeding the upper limit.
When idling, the revs of the engine must range
between 1000 rpm and 1200 rpm.
1
To Next Page
Loading...
