Help I need a\can I borrow\can I rent a tool
11-24-23, 09:21 AM
#26
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Brent
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11-24-23, 10:12 AM
#27
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11-24-23, 12:04 PM
#28
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One of the nicest things someone has done here was to contact me to offer to let me borrow a tool.
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Commence to jigglin’ huh?!?!
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Commence to jigglin’ huh?!?!
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11-24-23, 12:38 PM
#29
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the thread file is worth a try, I believe they are "normal" metric pitch threads, just a very abnormal diameter. But a good quality metric thread file might do the trick, I've used one on some automotive parts before and had success.
At first I only had some cheaper Asian-made files in both SAE and metric, but acquired a used Nicholson brand SAE file (same arrangement with 8 different patterns on the 4 surfaces of two ends) and I think (or imagine) it gives better results.
YMMV
11-24-23, 01:38 PM
#30
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Well, it's not the worst thing that can happen, and I probably will be able to repair the tool. We have to balance risk, cost, probability, etc.
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11-25-23, 05:16 PM
#31
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I do have a BB re-facer that I will loan locally and in my presence.
Robert
PS, perferably with beer in hand.
Robert
PS, perferably with beer in hand.
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05-29-24, 07:36 PM
#32
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Well, I never ended up with a chainstay cripmer. But
I still needed one and nlerner stated in post #5 that he used a bench vise.
Well I had a cool little bench vise I made while I was in college for Industrial Arts in my cold metals class
I had a cool piece of plastic I put on the outside of the stay and put the vise on it and tightened it and indented the frame about 4mm
did what I needed.
This is the first time I used the vise.
I still needed one and nlerner stated in post #5 that he used a bench vise.
Well I had a cool little bench vise I made while I was in college for Industrial Arts in my cold metals class
I had a cool piece of plastic I put on the outside of the stay and put the vise on it and tightened it and indented the frame about 4mm
did what I needed.
This is the first time I used the vise.
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05-29-24, 07:51 PM
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Well, I never ended up with a chainstay cripmer. But
I still needed one and nlerner stated in post #5 that he used a bench vise.
Well I had a cool little bench vise I made while I was in college for Industrial Arts in my cold metals class
I had a cool piece of plastic I put on the outside of the stay and put the vise on it and tightened it and indented the frame about 4mm
did what I needed.
This is the first time I used the vise.
I still needed one and nlerner stated in post #5 that he used a bench vise.
Well I had a cool little bench vise I made while I was in college for Industrial Arts in my cold metals class
I had a cool piece of plastic I put on the outside of the stay and put the vise on it and tightened it and indented the frame about 4mm
did what I needed.
This is the first time I used the vise.
05-29-24, 08:22 PM
#34
Senior Member
Do you mean to say that you dimpled the exterior of the chain stay with your machine vise and tubing block? Was this so that the front derailleur would not hit it while shifting?
05-29-24, 09:41 PM
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Brent
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05-30-24, 03:14 AM
#36
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My condolences!
the thread file is worth a try, I believe they are "normal" metric pitch threads, just a very abnormal diameter. But a good quality metric thread file might do the trick, I've used one on some automotive parts before and had success.
At first I only had some cheaper Asian-made files in both SAE and metric, but acquired a used Nicholson brand SAE file (same arrangement with 8 different patterns on the 4 surfaces of two ends) and I think (or imagine) it gives better results.
YMMV
the thread file is worth a try, I believe they are "normal" metric pitch threads, just a very abnormal diameter. But a good quality metric thread file might do the trick, I've used one on some automotive parts before and had success.
At first I only had some cheaper Asian-made files in both SAE and metric, but acquired a used Nicholson brand SAE file (same arrangement with 8 different patterns on the 4 surfaces of two ends) and I think (or imagine) it gives better results.
YMMV
If the damage is localized I'd get a loupe on and use a smoothed triangular pick to burnish the bad sections into submission.
I do wonder how it got damaged, being harder than any aluminium crank.
05-30-24, 08:43 AM
#37
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Nope, I needed tire clearance and the plastic piece kept the exterior from dimpling and it just flattened the interior of the stays right where it was next to the tire. I did both sides.
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05-30-24, 10:22 AM
#38
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Caution: My 1973 Peugeot UO-8 frame failed due to a crack in the drive-side chainstay, about in the middle of the dual (tire and chainring) clearance dimples.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
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05-30-24, 12:46 PM
#39
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Thanks to nlerner for the idea!
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Last edited by bwilli88; 05-30-24 at 06:40 PM.
05-31-24, 06:12 AM
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