Reinforcing Header

23. If cutting or grinding was required in Step 21B, reinforcing of the header will be necessary due to possible weakening. Perform the procedure below.

A. Clean both corners of the header thoroughly using grease and wax remover until the outboard rivet heads are visible.

B. Using a 1/8 in. (3.17 mm) drill bit, drill a hole 1/2 in. (12.7 mm) inboard and outboard of each of the existing outboard rivets.

NOTE:
WHEN DRILLING THE HOLES, THE DRILL MUST PIERCE TWO LAYERS OF SHEET METAL.

24. Install the gray steel rivets provided at each location.




25. Install two, 4.8 mm (# 10) self-tapping screws each into the underside of the header at the outboard ends. Choose a location where there is material sufficient to screw into without the screw heads interfering with the header garnish molding. Note the marks made earlier when the header garnish molding was removed. Drill two 1/8 in. (3.17 mm) pilot holes and place the screws within the shaded area shown (Fig. 4).


26. Inspect for any flex in the header. If necessary, add one additional screw and rivet as required.