
Loosen the screws (1) and remove the relay supporting bracket (2), disconnect the connectors (3) and remove the control unit (4) from the vehicle.



Layout of engine control system and other components
Reassembly of the control unitRemoval of the timing gears
Slide out driving gear (a) of timing gear pair (13) and remove the woodruff
key (14).
Relieve the staking on the lock washer (12) of the nut (11).
Restrain the driven timing gear by inserting a pin in one of the holes, and
unscrew the nut (11).
Remove the nut (11), washer (12) ...
Refitting the cylinder/piston assembly
If new units are used, it is necessary to couple the cylinders and pistons of
the same selection (see paragraph "overhaul Of the cylinder
barrel/piston components" of this section).
If the pistons have been separated from their cylinders, before reassembling
these components, position the p ...