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Lotus Service Notes Section GJ
Note that the inset figure is the displace-
ment of the wheelrim centreline relative to the
wheel/hub mounting face. A positive inset
indicates that the wheelrim centreline lies in-
board of the wheel mounting face, whereas a
negative inset means the wheelrim centreline
is outboard of the mounting face.
GJ.4 - WHEEL BOLTS
The wheel bolts used are of a special
design to suit the small diameter fixing tunnels
in the wheel centres. The bolts have an M12
x1.5 thread, 60° conical seat, and a 10 spline
socket head for which a special extension tool
is supplied with the car.
A 17 mm a/f deep socket and 1/2 inch
square drive torque wrench should be applied
to the extension tool, with a tightening torque
of 105 Nm required.
To protect against wheel theft, one of the five bolts securing each wheel is key coded, and requires a
correspondingly coded adaptor tool. Fit the adaptor tool onto a 1/2 inch square drive extension, and rotate the
adaptor until until full engagement into the bolt head is assured before applying torque. Note that an alignment
mark is provided on the coded bolt head and adaptor tool to aid refitting. The spline drive extension and the
coded adaptor tool are stowed in the vehicle tool pouch, and should remain with the car at all times to allow
servicing or repairs to be performed.
GJ.5 - TYRES
The Pirelli P-Zero tyres fitted to the Evora are suitable for all normal weather conditions. The tyre char
acteristics include good feedback (‘feel’) from the road surface to the steering wheel, a high level of steering
linearity and response, and little performance degradation with the raised temperatures which may be reached
in high speed use.
However, tyre performance will decrease at low ambient temperatures, resulting in reduced levels of
grip and an increased susceptibility to damage from impacts. In these conditions, especially where average
temperatures are below 0°C (32°F), or where snow may be expected, it is recommended to fit a car set of the
recommended winter tyres (see below).
Standard wheelbolt
Splined
extension tool
Coded wheelbolt Coded adaptor
17mm socket, extension & torque wrench ohs114d
INSIDE OUTSIDE
face of face of
wheel wheel
Wheelrim centreline Wheel mounting face
Inset (positive shown)
g02
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