Vehicle Height GT2
Vehicle height GT2The vehicle height on the front and rear axle of the 911 GT2 can be adjusted. Before wheel alignment values are adjusted at front and rear axles, it is recommended or necessary that the height adjustment be checked at the DIN empty weight. The height adjustment possibility allows the wheel-load difference from right to left to be kept as small as possible, provided that wheel load weighing machines are available. The wheel-load difference is adjusted by changing the vehicle height within the height tolerance. The priority is to achieve the smallest possible wheel-load difference from left to right.
The height adjustment possibility allows:
^ Differing wheel loads on left and right to be corrected. At the correct height the wheel-load differences lie within a permissible range, provided that the coil springs have the same installation position (installed spring preload) on each axle. Tolerance 1 mm. Wheel-load differences can be kept as low as possible in conjunction with wheel-load weighing machines. Tolerance from right to left on front and rear axle under 15 kg.
^ Any impermissible height differences - front axle to rear axle - can be balanced out (only within the permissible tolerance).
- For the height check of the ready-to-drive vehicle (full tank and tools), place the vehicle on a level surface or on the measuring platform.
- Front axle: Measure from road contact surface to the lower edge of the hexagon-head bolt of the tension-strut screw connection to the body. Measuring point as with 911 Turbo (996).
Front axle
Rear axle: Measure from wheel contact surface to the locating bore in the rear-axle side section (between toe and camber eccentrics).
Rear axle
Note:
^ Required values for front and rear axle can be found in the table 'Adjusting values for suspension alignment'!
The vehicle height on the front and rear axle is adjusted by turning the adjusting nut -No. 2-. The lock nut -No. 1- must first be loosened. Use a hook wrench or special tool 9647 (hook wrench insert) for this purpose.
Adjusting nut -No. 2- - turn to the right = vehicle higher turn to the left = vehicle lower
After adjustment of the lock nut(s) -No. 1- on the front and rear axle, tighten with special tool 9647 in conjunction with a torque wrench. Tightening torque -No. 1- = 50 Nm (37 ft. lbs.).
If the vehicle is measured front and rear, check and adjust the rear axle first. Nominal values in Wheels, Tire, Suspension, Alignment. After adjustment, tighten the appropriate screwed connections with the prescribed tightening torque. See tables in Front Wheel Suspension, Drive Shafts and Rear Wheel Suspension, Axle Shaft.
Front axle
1 Lock nut
2 Height adjusting nut
Rear axle
1 Lock nut
2 Height adjusting nut