Bottom bracket shell point separation, is this structural?
12-14-10, 11:48 AM
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Bottom bracket shell point separation, is this structural?
I noticed this some time after I had bought this frame set. These photos are of the upper point of the bottom bracket shell on the down tube. The other tube visible is the front of the seat tube.
Sheet of paper, would go further except for that one little bit connecting the tube and the point.
From afar:
The frame set:
Is this structural? Is it safe?
Guess what is on my check list these days
Sheet of paper, would go further except for that one little bit connecting the tube and the point.
From afar:
The frame set:
Is this structural? Is it safe?
Guess what is on my check list these days
12-14-10, 11:59 AM
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Nothing more than a drag. I would use a tiny dripper to get a drop of oil down there and coat it quickly with brush applied quick dry paint before the oil spreads. If the tube was cracked, you would have a problem.
12-14-10, 12:32 PM
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Yep; it looks like just sloppy brazing to me. The point of the lug should have been tapped flush with the tube using a small hammer before brazing.
12-14-10, 12:40 PM
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Isn't that the little known erect-tang lugset? 
Neal
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12-14-10, 01:01 PM
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I used to see that problem fairly often on early 1980s Fuji models. It's not an optimal joint but it's unlikely to cause a failure. This one is much later and probably made in Taiwan.
12-14-10, 05:40 PM
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+1.... It looks like the guy (or machine, depending) brazing that bike just had a "flyer", or a tip that lifted and, therefore, didn't get fully brazed. I doubt its structural and even appears to have some paint under it.
12-14-10, 07:10 PM
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Oil based paint perhaps? We do it all the time ..
Scott
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12-14-10, 07:18 PM
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A trait I thought more common on French bikes
....really surprised to see this on a Fuji
.......I thought their frame builders were more "anal" about these things.....
Must be Kazuhiro's first day on the job....
Chombi
....really surprised to see this on a Fuji.......I thought their frame builders were more "anal" about these things.....Must be Kazuhiro's first day on the job....
Chombi
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