Original in Swedish language:

Repair bracket for Porsche 928 S4/GT/GTS rear wing

v1.0, 25.11.2009, Herman Andersson

1. make a template for marking and cutting

2. make two mounting plates from stainless steel or aluminum. Feel free to roughen the surface that you want to cut.

Sand the wing surface with very coarse emery cloth.

3. buy screws and glue. The screws should be made of stainless steel if possible, prevent future corrosion. The adhesive can be epoxy resin or silicone.

Intended for gluing.

4. buy 1.5-2 mm rubber sheets or use material from a thick tube

5. cut or cut out two rubber spacers

6. cut away the black surface layer in two places on the wing using the template threaded over it.

the existing bolts. Make sure that the cut-out is carried out carefully, as this

this will ensure the relative position between the fixing bolts in each mounting plate of the mounting plate.

7. remove the damaged metal plates that hold the bolts in the cut-outs. Here it can be
A small machine with a cutting disk is required.
 

8. remove enough material from the wing body to allow the mounting plates with the M-thread.
the mounted screws end flush with or just below the surface of the sash
 

9. using the mounting plates, drill 4+4 holes with a diameter slightly smaller than the “threaded”
base diameter of the drywall screws. Be careful not to drill all the way through to the sash nothing will happen on the other side.
 

10. check the fit of the mounting plates with all screws.
 

11. dismantling
 

12. assemble and use plenty of glue
 

13. wipe off any excess glue that has been squeezed out