The Birkin

The Birkin
The finished article

Wednesday, October 31, 2007

The wishbone's connected to the, upright.....

More work on the front end this weekend, with the front disks and calipers going on. So now we have round things on either end of the car.

Putting the front disks on introduced some new elements, such as the front mudguard brackets. What it also demonstrated once more is that it pays to prefit, think about it all, then take it apart again.

To put the front disks on, you do the following:
  1. disconnect the steering arm from the upright
  2. offer the disk up to the upright
  3. put the nut on the spindle on the disk
  4. try and tighten the nut
  5. find out that turning the nut means the spindle turns as well
  6. remove the disk and use a cold chisel and a hammer to notch the spindle so that it grips
  7. put the disk back on the upright and tighten the nut
  8. put the brake calipers on to the upright
  9. remove it all again when you find out you've forgotten to put the mudguard bracket on
  10. put the mudguard bracket on, tighten the but on the disk spindle, and replace the calipers
  11. discover that the mudguard bracket prevents you from reaching the nut holding the upright to the lower wishbone
  12. remove the guard by undoing the nut once more
  13. discover that the taper on the lower wishbone has been made too thin, and that the nut runs out of thread before the upright is secured to the wishbone. Find out that you need a washer to bridge this gap
  14. start work on something else......

However, I now know how it all goes together (and comes apart), so there's no worries in future if I need to rework some of this.

What needs to happen is I need to get the space machined up, then I can tighten the nuts on the uprights (not fully yet), and get the rest of the assembly pretty much all in place. Then I can hook up the brake lines to the calipers, and the front assembly will be pretty much complete.

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