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Just because I have'em, you might like to see..
#782759 08/27/19 3:31 pm
Joined: Aug 2001
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The A65 frame has areas of the tubing reinforced with inner tubing. I'm not really sure if this is done for strength, which of course makes sense, or maybe alignment while manufacturing? It's not every where, and in some places seems unnecessary, at least to me............. Also, I was amazed at how much RUST there was inside places that didn't seem open to the elements. Here's a few photos.

Attached Files IMG_4060_800x600.JPG

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Re: Just because I have'em, you might like to see..
KC in S.B. #782762 08/27/19 3:48 pm
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AIUI the extra tube in the lower rear of the cradle is to help prevent the tubes from bending/kinking during manufacture. Never realised it was in other sections also.

The last picture, I assume is what you referred to in your pm?


beerchug

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Re: Just because I have'em, you might like to see..
Allan G #782776 08/27/19 5:59 pm
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Allan, Yes. It was my intent the shock mount would positive locate. Not as positive, but I could cut it off between the seat mount tab and the shock. The bit of flat gusset still remaining would help with the "rotational locate".

Last edited by KC in S.B.; 08/27/19 6:02 pm.

Down to 1 BSA, 2 Triumphs, 1 '56 Chevy
1 '65 XLCH, Hernia Gift, on the way to Japan!
Re: Just because I have'em, you might like to see..
KC in S.B. #782778 08/27/19 6:27 pm
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That sounds like a plan KC.


beerchug

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Re: Just because I have'em, you might like to see..
KC in S.B. #782782 08/27/19 6:57 pm
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The Experimental Aircraft Association magazine has ads for products that aid in building your own aircraft.

One of those products is a type of oiiy foam that can be injected into fuselage tubes to prevent internal rusting.

It might be a good idea to use this when restoring an old frame.

Re: Just because I have'em, you might like to see..
KC in S.B. #782794 08/27/19 8:30 pm
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Waxoyl is another one


1972 Triumph T120
1968 BSA A65
1968 MGB Roadster
1979 Chevrolet Camaro Berlinetta
1969 Honda Mini Trail
1939 farmall f30 tractor
2004 Honda Shadow Aero
1972 BSA Thunderbolt
1975 yamaha xs650b
1972 Norton commando
2 olive drab WWII military bicycle replicas
Re: Just because I have'em, you might like to see..
KC in S.B. #782865 08/28/19 12:39 pm
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My focus on the inner tube pieces was this: How do you get them in to the frame tubes? It must be a very "fiddley" process. How can a production line fool around with that? I guess there were many Hands-On steps in manufacturing at the time. Folks had specialties. Watching some of the old factory movies shows that. It was just interesting to see when cutting.


Down to 1 BSA, 2 Triumphs, 1 '56 Chevy
1 '65 XLCH, Hernia Gift, on the way to Japan!

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