Steering: Specifications

Tightening Specifications
Steering Gear To Crossmember M8 (*) 45 Nm (33 ft lb)
Tie Rod To Steering Arm M12 65 Nm (48 ft lb)
Universal Joint To Steering Gear M8 (***) 23 Nm (17 ft lb)
Tie Rod To Ball Joint And Joint Fork (Lock Nut) M14 45 Nm (33 ft lb)
Tie Rod To Steering Rack M14 70 Nm (52 ft lb)
Steering Wheel To Steering Shaft M16 45 Nm (33 ft lb)
Steering Outer Tube To Body M6 (**) 10 Nm (7 ft lb)
Pressure And Return Line To Steering Gear M12 20 Nm (15 ft lb)
Pressure Line To Power Pump M14 30 Nm (22 ft lb)
Pressure Line To Pressure Line M14 25 Nm (18 ft lb)

Footnotes
(*) Replace screws after every removal job.
- Use only genuine spare parts (microencapsulated screws).
- Since 1995, grade 12.9 screws have been used (previously grade 10.9 screws).
- For replacement, only grade 12.9 screws must be installed on all 993 vehicles.
- The threads of the screws and the washers must be clean and grease free.
- Remove microencapsulation residuals from the threaded bores required to fix the steering gear (use suitable solvent for cleaning, then blow out bores with compressed air).
- Before tightening, screw down the screws evenly until the fastening clamps almost touch the cross member.
- During final tightening, start with the screws for the short leg (of the cross member) and pull them tight, so these surfaces will be the first to fit tightly.
(**) Break off shear bolts after functional test (locking bolt of ignition lock) and visual inspection of all parts.
(***) Replace fit bolt whenever it has been undone.