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Home >> Porsche >> 2003 >> 911 Carrera 4S, Standard >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Wheels, Tires, Suspension Alignment - 911 CARRERA (996) >> Suspension alignment, complete >> Front axle >> Adjusting toe

Adjusting toe

NOTE: The steering angle sensor must be calibrated if the previous wheel alignment values for vehicles with PSM (Porsche Stability Management) were changed!

Preliminary work: Check whether the steering wheel is displaced with respect to the steering gear. To do this, centre the steering gear as described below.

Turn wheels to the straight-ahead position.

Then readjust the front wheel alignment, if necessary, until pin No. 2 in driver No. 1 and the lug on the steering gear housing No. 4 line up.

No. 3 is the desired breaking point for pins in new steering gears. (New) pin No. 2 is inserted into driver No. 1 and lies with its underside within the recess of lug No. 4. This locks the steering gear in the centre position. After installation of a new steering gear, the lower part of the pin is sheared off (at the desired breaking point No. 3) by turning the steering wheel. The upper part of the pin remains in the driver.

If necessary, reposition the steering wheel. When doing this, seek the best position.

Fig 1: Adjusting Toe
G03105742Courtesy of PORSCHE OF NORTH AMERICA, INC.
WARNING: A triggering of the airbag (malfunction in the airbag system) caused by improper work on airbag components cannot be ruled out! In the case of such a malfunction, an unsuitable steering wheel holder could cause injury or damage!
  1. Use only steering wheel holders which do not project into the area of the airbag unit!
  2. Observe safety regulations when working with airbag vehicles (see in AIR BAG RESTRAINT SYSTEMS )!

Clamp steering wheel in centre position with steering wheel holder (see Fig 2 ). Use only steering wheel holders which do not project into the area of the airbag unit! If necessary, shorten the guide rod (A) at top (arrow).

Fig 2: Clamping Steering Wheel In Centre Position
G03105743Courtesy of PORSCHE OF NORTH AMERICA, INC.

Then adjust toe at hexagon No. 2 of the track rod(s) after loosening the lock nut(s) No. 1 (see Fig 3 ).

Fig 3: Adjusting Toe At Hexagon No. 2 Of Track Rod(S) After Loosening Lock Nut(S) No. 1
G03105744Courtesy of PORSCHE OF NORTH AMERICA, INC.

The steering angle sensor must then be calibrated in vehicles with PSM!

In order to tighten the tie rod lock nut(s) - to the prescribed tightening torque - use special tool 9625 in conjunction with a torque wrench (see Fig 4 ). The prescribed lock nut tightening torque of 50 N.m (37 ftlb.) corresponds to a setting on the torque wrench of approx. 35 N.m (26 ftlb.).

Fig 4: Tightening Tie Rod Lock Nut(s)
G03105745Courtesy of PORSCHE OF NORTH AMERICA, INC.
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