Lotus Elise Service Notes page 293

MANUAL GEARBOX
OPERATION - REVERSE BRAKE
When selecting reverse gear, the 5th/reverse shift
piece (1) moves upwards, and the angled face of the
lock plate (3) contacts the ramp of 3rd/4th selector
fork (2). The upward movement carries the lock
plate (3) outwards until it contacts the abutment (4)
on 1st/2nd selector shaft. From this point, continued
upward movement of the 5th /reverse shift piece (1)
causes the lock plate (3) to move the 3rd/4th
selector and synchro sleeve (5) towards 4th gear.
The movement of the 3rd/4th synchro sleeve (5) is
sufficient to restrain the input shaft (6), thus
permitting smooth engagement of reverse gear.
To prevent any further movement of the 3rd/4th
synchro sleeve (5) and engagement of 4th gear, the
spring on the lock plate (3) moves the lock plate into
the machined groove (7) above the abutment (4).
REVISED: 12/97 DESCRIPTION AND OPERATION
9