Porsche 928 - WORKSHOP MANUAL 1977 Workshop Manual page 183

45
Anti-lock Braking System
928
Rear Axle
Removing
1. Remove wheel.
2.With ignition switched off, open
ABS cable plug-in connector on
wheel carrier and disconnect
cable. Open clip for speed sensor
cable.
Unscrew speed sensor mounting
bolt. Make space by withdrawing
cable from holder above the
mounting bolt.
3.Withdraw speed sensor from wheel
carrier.
l.Coat speed sensor and hole in
wheel carrier with Molykote Long-
term 2. Renew speed sensor
O-ring.
Z.Without using force, insert speed
sensor in wheel carrier and
tighten Allen bolt to secure.
Torque: 10 Nm (7 ftlb).
Note:
The distance between speed sensor
and impulse ring is a design
feature and cannot be adjusted.
3.Place cable in clip on wheel
carrier. Close clip. Insert cable
in holder above sensor mounting
bolt.
Installing
Note:
4.Insert plug-in connector and
place in holder. Mount wheel.
- Do not remove speed sensor from
protective packing until shortly 5.Check operation with ABS tester.
before installation (loss of per-
manent magnetism).
- Before installing, check that the
magnetic edge of the speed sensor
is free of foreign particles
(metallic shavings).
0
45 - 12
Removing and Installing Speed Sensor, Printed in Germany
86 Models Onward