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Messages - Spitfighter

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Twins / Re: A65 swingarm bush removal
« on: 31 October, 2017, 10:56:26 »
Hi the method I was taught and have applied successfully is as follows.
Choose a metal drill bit wider than the width of rubber, but not quite as wide as the thickness of that and both inner and outer metal sleeves. I found something around 5mil worked.
The bit also needs to be as long as the outer sleeve if possible to get to the end of the rubber..
Drill three or better four (or even five) holes down the length of the bush, and in doing so you drill out part of the thickness of both sleeves.
With a slightly smaller bit you can then drill out as much of the rubber still adhering to both inner and outer, and inevitable do even more to weaken both sleeves. Obviously try not to damage the swing arm itself. I managed with only minor scratches to that.
There comes a point when enough rubber is drilled out that you can get something in to collapse the inner sleeve enough to get some mole grips on it. With a bit of riving about (if you have removed enough rubber by drilling) the inner sleeve comes loose and can be puled out.
The outer sleeve should also then be encouraged to collapse and loosen and pull out.
Not as smelly as burning it, and doesn't require welding skills...
Doesn't apply I think to the later kind of bushes not of the rubber type.

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Twins / Re: A65 swingarm bush removal
« on: 29 October, 2017, 11:53:44 »
If anyone wants a solution to this for removal of the silent bloc bushes I have a method that works learned from other more experienced souls...

3
Twins / Re: How original for an age related plate?
« on: 29 October, 2017, 11:12:55 »
Funny you should mention the frame number and powder coating Julian. On another bike I had just that problem but it at least was already registered and risked being more of an MOT issue. As it happens the shallow stamp on the Spit frame has probably helped me decide against powder and go for spray paint which I can do myself and control more carefully.
Thanks again to you and the editor. Am feeling more relaxed again about my plans...
As a newby to posting where is the right space on the forum for enquiries like this which cuts across types. I posted under twins but this isn't just a twins issue?

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Twins / Re: How original for an age related plate?
« on: 27 October, 2017, 16:13:25 »
Thanks for the speedy reply Julian. You should take over DVLA by all accounts...

I should have said I have already read the suggested BSAOC guidance and the stuff from DVLA but there still seems to be some latitude/ ambiguity in the rules set out.

I wanted to tap in to the experience of actually doing this - how do the rules get interpreted? Are they consistent?

To take the example I posed, I really don't want to paint the frame one colour only to have that used as grounds for rejection after putting it back together, not least so I don't have to take it apart again just for that.

So who has been through this process and what happened?

5
Twins / How original for an age related plate?
« on: 27 October, 2017, 15:06:40 »
I have recently acquired a reimported Spitfire. It was in "barn find" condition only the barn itself had probably had holes in the roof. I am beginning the business of stripping down and rebuilding and would obviously like an age related plate at the end of the work. (I have read the thread on getting through that process...).
Although the advice is that
1. key components have to be original (I think mine are) but how long is that list and what exactly is on it?
2. there is some latitude for replacement of worn and damaged bits, (how much?) and
3. there is some latitude for "cosmetic" changes. 
What is the experience out there of how these criteria have actually been applied?
I have in mind a number of options for the rebuild, all of which would preserve the integrity of the original frame, the engine and forks, but would I incur problems if I did something like paint the frame a different colour than black, or some other technically reversible thing?

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