APRILIA V990 Manual page 54

DISASSEMBLING THE ENGINE
 2%-/6).' 4(% #,54#( #/6%2
Carefully read 0.5.1 (PRECAUTIONS AND GENERAL
INFORMATIONS).
NOTE
The following operations can be performed with-
out removing the engine from the frame.
N
Drain the engine oil, see 0.4.1 (VEHICLE WORKSHOP
MANUALS);
N
Drain the coolant, see 0.4.1 (VEHICLE WORKSHOP
MANUALS);
N
Remove the starter motor, see 3.3 (REMOVING THE
STARTER MOTOR);
N
Remove the expansion tank, see 0.4.1 (VEHICLE
WORKSHOP MANUALS);
N
Remove the rear brake control lever, see 0.4.1 (VEHI-
CLE WORKSHOP MANUALS).
N
Unscrew and remove the eight M5 T.C.E.I. screws (1)
and remove the complete diaphragm cover (2).
N
Remove the diaphragm (3) from the clutch cover retain-
ers (4) and turn it approx. 20°.
N
Unscrew and remove the M12 stop nut (5) and remove
the washer (6), cup (7), diaphragm (3), support ring (8)
and the washer (9).
NOTE
In order to unscrew and remove the M12 stop
nut (5), the clutch disengaging shaft must be held still with
a bent hexagon-head driver.
N
Unscrew and remove the four M6 T.C.E.I. screws (10)
and remove the coolant pump casing (11) complete
with shaped seal.
NOTE
The lower T.C.E.I. screw (12) (coolant drain
plug) also features a seal.
See 4.22 (COOLANT PUMP) for instructions on disas-
sembling the coolant pump.
N
If the M8 T.C.E.I. screw (15) has not been previously
removed, to retain the shaft at TDC, this screw must
also be removed.
N
Unscrew and remove the eleven M6 T.C.E.I. screws
(13) and the three M8 T.C.E.I. screws (14).
a
CAUTION
Be careful not to damage the gasket surfaces when
lifting the clutch cover.
N
Lift the clutch cover (16) carefully, using a screwdriver
to work the pull-out tabs (17), and remove it.
N
Remove the gasket.
3 - 18
- 00
V990 engine
Release 00/2001-06