Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 145/146 Factory Service Manual (1994-1999)03 · Engine
03 · Engine

Timing sensor

Make
Alfa Romeo
Model
145/146 Factory Service Manual
Year
1994–1999
Section
Electrical - electronic components (1970 T. SPARK 16V) › Timing sensor
EngineTiming sensor · page 1 of 2

TIMING SENSOR

The timing sensor (cam angle sensor) comprises a Hall effect device.

The voltage signal "lowers" sharply when the tooth machined on the camshaft drive pulley opposite the sensor passes in front of it.

Timing gear and camshaft drive pulley assembly with sensor position indicated.

REMOVAL/REFITTING

  • Set the car on a lift.
  • Disconnect the battery (-) terminal.
  • Remove the right front wheel and mud flap.
  1. Raise the car and working as illustrated on the belt tensioner loosen the tension of the auxiliary components drive belt and remove it.
  2. Slacken the four fastening screws and remove the auxiliary components drive pulley.
Belt tensioner being loosened with a wrench; torque specification shown: 24 ÷ 29 Nm, 2.4 ÷ 3.0 kgm.

24 ÷ 29 Nm
2.4 ÷ 3.0 kgm

  1. Slacken the fastening screw and remove the belt tensioner.
  2. Slacken the fastening screw and remove the auxiliary components drive belt guide pulley.
  3. Slacken the fastening screws and remove the lower cover of the timing gear and counter-rotating shaft drive belts.
Lower cover of timing gear and counter-rotating shaft drive belts being removed; callouts 1, 2, 3 indicate components.
  • Slacken the lower screws of the upper cover of the timing gear and counter-rotating shaft drive belts.
  1. Lower the car, slacken the fastening screws and remove the upper cover.
Upper cover of timing gear and counter-rotating shaft drive belts being removed; callout 1 indicates the cover.

Parts & tools for this job For 1994 Alfa Romeo 145/146

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