Workshop Manuals Factory service & repair Alfa Romeo
01 Introduction and contents02 Technical data and maintenance03 Engine04 Clutch05 Gearbox06 Front axle and drive shafts07 Brakes08 Steering09 Suspension and wheels10 Heating and ventilation11 Bodywork12 Timing belt data sheets
Alfa Romeo 145/146 Factory Service Manual (1994-1999)06 · Front axle and drive shafts
06 · Steering & suspension

Description

Make
Alfa Romeo
Model
145/146 Factory Service Manual
Year
1994–1999
Section
Transmission half-shafts (Twin Spark 16V) › Description
Front axle and drive shaftsDescription

DESCRIPTION

With the constant velocity joints the axle shafts form the set of devices which transmit motion from the gearbox to the driving wheels.

The assembly of these devices, commonly called "transmission" when in conjunction with the gearbox, comprises the following:

  • right and left axle shafts;
  • constant velocity joints on wheel and gearbox side.
  • intermediate shaft.

The high-resistance steel axle shafts (6) have grooved ends to enable coupling with the constant velocity joints (1) and (5).

The housings for the joint retainer circlips (2) are on the ends.

The constant velocity joints are formed of an inner core (1d) known as "drive", keyed onto the input shaft and an outer shell (1a) called "driven", which forms the output element of the joint.

The inner core has six spherical grooves on its outer surface containing six balls (1b), held in place by a cage (1c).

These balls are the parts which actually transmit the motion and are also located in other grooves machined on the inner surface of the shell.

The left-hand axle shaft is fitted with a vibration damping mass (8) formed of two half shells and a rubber pad (9) for positioning.

Exploded view of front axle transmission half-shafts components
  1. Constant velocity joint, wheel side
  2. Circlip
  3. Retainer clamp
  4. Protective boot
  5. Constant velocity joint, gearbox side
  6. Axle shaft
  7. Constant velocity joint connection flange
  8. Damping mass
  9. Rubber pad

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

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