Lotus Elise S1 Service Notes page 101

Lotus Service Notes
Section DE
DE.6 - WHEEL SPEED SENSOR
The wheel speed sensor is used to provide a road speed signal to the speedometer, and is mounted on a
bracket fixed to the left hand rear hub carrier. The sensor is easily damaged, and if a driveshaft is to be
removed, the sensor should first be withdrawn from its mounting bracket.
The gap between the sensor tip and the pole wheel (toothed ring) pressed onto the driveshaft, is critical
and should be checked whenever a driveshaft is re-assembled into a hub carrier, or if a related component is
replaced. The specified gap of 0.25 to 1.25 mm may be adjusted if necessary by fitting shim washers between
the sensor fixing tab and the mounting bracket. Tighten the sensor fixing screw and bracket fixing screw to 9.3
Nm. Ensure that the toothed ring does not become clogged with mud or accumulated dirt.
DE.7 - BARREL SHAPED ROAD SPRINGS
In June '98 at approx. VIN W 3580, the front and rear road springs were changed from parallel (black
painted) to barrel shaped (graphite coloured) in order to provide increased spring stability and reduce the
possibility of the spring fouling the damper body. The barrel shaped springs use different abutment grooves in
the damper body, and revised rear damper chassis anchor brackets with repositioned (10mm higher) damper
pick up holes. If an earlier car is to be updated with the barrel springs, all four springs must be changed,
together with the following:
1999 / 0 1
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