Meanwhile : Top end bolts

While hunting out other items in the box of donor bike parts, I noticed that the top end bolts were looking a bit worse for wear.
They were rusty when removed, and the old top end dismantled. If anything, a few weeks in the box has made them look worse.
A treatment plan was devised.

  • A cleanup on a wire brush wheel.
  • Soaking and brushing in a paraffin bath.
  • Rinsing and degreasing in a bath of brake cleaner.
  • An hour in a phosphoric acid bath.
  • …followed by an immediate scrubbing with a nylon brush in a bucket of water.
  • Drying overnight
  • A final polish up on the rotary wire brush.
  • Run an 8mm tap down the threads

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