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Posted: Sat Oct 21, 2017 2:23 pm
by Seadog
You’ve been productive. Nice job on that drill guide bushing and congratulations on working that thing out of the floor peg hanger. I’ve stared at the threaded conical end and just cannot think of what it might have been for. Well done on both tasks.
Posted: Sat Oct 21, 2017 4:52 pm
by G-Man
Seadog
Thanks for the kind words. I just needed some small jobs to get back into the swing of being in the workshiop. I'm back on my travels next Tuesday so it wasn't worth getting started on something for my main project, although a rather nice reproduction seat foam arrived in the post today....
G
Seadog wrote:You’ve been productive. Nice job on that drill guide bushing and congratulations on working that thing out of the floor peg hanger. I’ve stared at the threaded conical end and just cannot think of what it might have been for. Well done on both tasks.
Posted: Sat Nov 11, 2017 10:27 am
by G-Man
Back from my latest US trip and still feeling a bit 'below-par' for any workshop action with dangerous tools. Just before I went away a replacement seat foam turned up so I though I'd better pull out the rather horrible-looking seat for this project.
Early seats had bolted on brackets and attached to a frame that did not have the lugs on the rear frame rails. This leads to them being called 'short' seats but it is really only that the rear brackets are further forward.
The new seat foam looks longer here but that is just perspective. They look pretty well matched to me.
I have also got a couple of vinyl samples as I think the modern replacement covers are just too bright.
I've been putting this off for far too long. Time to get to work on rescuing this seat...
G
Posted: Sat Nov 11, 2017 11:18 am
by Seadog
What is all over the seat pan - rust? Peeling paint? Will you treat that first?
Posted: Sat Nov 11, 2017 11:49 am
by G-Man
Seadog
Just horrible rust like the rest of the bike. May have to scrap this base and start again but we'll see. Yes, It will all be cleaned up and painted before re-covering.
G
Seadog wrote:What is all over the seat pan - rust? Peeling paint? Will you treat that first?
Donor rods
Posted: Sat Nov 11, 2017 4:06 pm
by DJM
Not sure how that would work; I think the whole point of these kits is that the welding rod (actually it's solder) melts at a much lower temperature than the parts you're trying to repair.
If you made the rod from the same material as the parts that wouldn't happen, the donor rod wouldn't melt until it reached the same temperature as the components when the whole lot would go very quickly from a solid to a liquid state, there's a word for that critical point, I think s**t is the word I've heard used!
Re: Donor rods
Posted: Sun Nov 12, 2017 3:45 am
by G-Man
DJM
I think you posted to the wrong part of the thread but yes - you are correct. Using the parent metal for the filler, the only option is to use conventional aluminium welding with a TiG or Oxyacetylene set.
G
DJM wrote:Not sure how that would work; I think the whole point of these kits is that the welding rod (actually it's solder) melts at a much lower temperature than the parts you're trying to repair.
If you made the rod from the same material as the parts that wouldn't happen, the donor rod wouldn't melt until it reached the same temperature as the components when the whole lot would go very quickly from a solid to a liquid state, there's a word for that critical point, I think s**t is the word I've heard used!