Gearchange Mechanism - Lotus Evora Service Notes

Lotus Service Notes
FL.1 - GENERaL DESCRIPTION
The 6-speed transmission assembly is an 'end on' type, positioned at the left hand side of the powertrain,
and is supplied by the Toyota Motor Corporation under the designation Ea60. The unit is fully described on
CD Lotus part number T000T1507 (Toyota ref. SC02J1Ea).
Insert the disc into a personal computer, and it will automatically open up to an avensis menu page. Se-
lect:
- New Car Features Supplement.
- 2005.04 Update.
- New Features.
- Manual Transaxle.
- Ea60 and Ea61 Manual Transaxle (disregard shift lever description).
Note that the Ea60 transmission is not used by Toyota in combination with the 2GR-FE V6 engine. For
the Evora application, a fully machined, cast alloy adaptor plate is interposed between the engine and transmis-
sion, the clutch housing of which is machined to accept the mounting of the starter motor via a further adaptor
block.
The transmission serial number is engraved on the top surface of the transmission front case, alongside
the jointline with the rear case. Typical example: a7H05232
FL.2 - GEaRCHaNGE MECHaNISM
Two control cables run along the centre of the cabin and beneath the fuel tank and power unit, and transmit
the movement of the gearchange lever to the transmission selector housing.
The gear lever is spring biased towards
the 3rd/4th gear plane, by springs at both the
lever end, and within the transmission. The
lever must be moved against light spring pres-
sure to the left before selecting first or second
gear, or against similar pressure to the right
before selecting 5th or 6th speed.
Engaging Reverse Gear:
With the vehicle at a complete stand-
still, pause for a moment with the clutch pedal
fully depressed before moving the lever to the
left, raising the lift collar beneath the knob, and
then further to the left over a spring detent
before finally pushing forwards to engage the
gear.
a two cable mechanism is used to connect the gearchange lever with the transmission, one cable ('shift')
to transmit the fore/aft movement of the lever, and a second ('crossgate') cable for the sideways movement.
The gearchange lever is pivotted at its base and operates the shift cable directly via a ball joint half way up the
lever. The base of the lever has an extended ball pin on the right hand side which engages with a crossgate
bellcrank lever, the other leg of which operates the crossgate cable.
an inhibit mechanism prevents the gear lever being moved into the reverse gear plane unless a collar
beneath the gear knob is lifted. This action raises a boss at the base of the lever above a curved inhibitor block,
allowing the lever full leftward movement.
The front end of both inner cables are equipped with socket joints which engage with ball pins fitted on
the gearchange mechanism. The outer cables are retained by a forked plastic block bolted into the gearlever/
handbrake mounting frame.
at the transmission end, each outer cable is located in an abutment bracket by a spring 'C' clip, with the
eye of the inner cable retained in its selector lever by a washer and 'R' pin. The shift cable connects directly to a
lever on the cross-shaft to cause its rotation, the action smoothed by an extension to the lever carrying a damper
mass. The crossgate cable connects to a bellcrank lever which imparts an axial motion to the cross-shaft.
Page 3
LIFT
COLLAR
6-SPEED CHANGE PATTERN
Section FL
ohs15a