On 09/06/2021 11:13, Steve Walker wrote:
On 09/06/2021 11:03, newshound wrote:
On 09/06/2021 10:55, Murmansk wrote:
I recently posted an item about a towbar-mounted bike rack and the
problem I had with the attachment bolt getting stuck and being
damaged when I removed it by force.

I've managed to order a new bolt from Witter and it will come with
the bit of metal that holds the nut. My puzzle now is how I'm going
to remove the bit of metal holding the bolt

This picture shows the thing in question

https://user.fm/files/v2-9b5da063c16...rier%20(1).jpg


Â*From my picture it looks as though the thing would slide out but it
won't because the metal has a slight "tab" punched in it on the
inside at each end to make it wider than the hole it sits in. I've
tried to pinch it with a G clamp and hammering it but it's too strong
to move it.

I'm at a loss to know how I'll take the old one out and put the new
one in?

You mean the U-shaped piece? It looks more to me as if it is "riveted"
slightly on the outside, presumably on both sides.

I would just grind that region off with an angle grinder.
Alternatively, cut it in half at the middle where the screwdriver is,
and slide each half out in the appropriate direction.

I'd go for the latter. The frame appears to be galvanised and it'd be a
pity to grind that off while removing the peening.

I think plated rather than galvanised, but yes, I was going to say that
too. Angle grinder masters will stop just short, and the softened metal
lip will fold off when the main piece is tapped through with a drift.
Difficult to tell from the pictures which region has the best access.
Also, the scale is unclear, one might be able to use a Dremel size with
either the thin, unreinforced disks or the slightly thicker fibreglass
ones. I very seldom use the Dremel "grindstones", they are either slow
or wear at an alarming rate, or both.