Rust Hole Repair Possible?
#1
Full Member
Thread Starter
Join Date: May 2008
Location: Incognito
Posts: 395
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked 0 Times
in
0 Posts
Rust Hole Repair Possible?
I bought an 80's Swinnerton with a full (except wheels) C-Record group on it. The frame is Columbus Max tubing and has some beautiful weld finishing. The fork and chainstays are chrome, but is a bit worse for wear, but I can clean it up nicely, or repaint with new decals, which I can make at home.
My only concern is a rust hole on the bottom of the non-drive side chainstay. It was covered with foil tape so I didn't see it when I bought the bike at an auction. As I have never heard of Swinnerton, got the bike for the C-Records components anyway.
Can this be brazed closed, or welded? I'l, file it smooth then repaint the area.
Thanks for the info,
Ian
My only concern is a rust hole on the bottom of the non-drive side chainstay. It was covered with foil tape so I didn't see it when I bought the bike at an auction. As I have never heard of Swinnerton, got the bike for the C-Records components anyway.
Can this be brazed closed, or welded? I'l, file it smooth then repaint the area.
Thanks for the info,
Ian
#2
Senior Member
Join Date: Sep 2008
Location: Collegeville, PA
Posts: 1,350
Bikes: Ruckelshaus Randonneur, Specialized Allez (early 90's, steel), Ruckelshaus Path Bomber currently being built
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
It's toast, especially with the chrome. With that said, have it de-chromed, and the chainstay is one of the simpler tubes to replace. I wouldn't patch it, as the damage is done.
#3
Randomhead
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Posts: 24,396
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 3,696 Times
in
2,517 Posts
I know I'm conservative, but I don't think I would trust a frame that rusted through. Seems like the chainstay is the least likely tube to rust through
#4
Senior Member
Join Date: Apr 2005
Posts: 912
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
Likes: 0
Liked 8 Times
in
7 Posts
I have a De Rosa that came with a cracked non-drive side chainstay. I had Bernie Mikkelsen replace the tube. It turned out that the previous owner had some paper towel remains stuck in there (while cleaning?). Any water that found its way into the frame collected around the paper, eventually rusted it through.
#6
Framebuilder
Join Date: Dec 2007
Posts: 570
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
You probably should pull the bb and try to see what else is rusted...might be a lot more than one chainstay.
#7
Senior Member
Join Date: Nov 2010
Location: River City, OR
Posts: 672
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
My guess is that the rust isn't local to just that one spot. I'd probably give that frame a pass unless you can determine the amount of rust in the remainder of the frame, or the value warrants repair.
#8
Decrepit Member
The fact that the stays are chrome plated really complicates any repairs. As mudboy says, all of the plating should be removed before heating it with a torch primarily because of the danger associated with inhaling hexavalent chromium, a potent carcinogen.
Quoting from the OSHA hexavalent chromium fact sheet,
https://www.osha.gov/OshDoc/data_Gene...t_chromium.pdf
Nasty stuff.
Quoting from the OSHA hexavalent chromium fact sheet,
Originally Posted by OSHA
Workplace exposure to hexavalent chromium may cause the following health effects:
• lung cancer in workers who breathe airborne hexavalent chromium
• irritation or damage to the nose, throat, and lung (respiratory tract) if hexavalent chromium is breathed at high levels
• irritation or damage to the eyes and skin if hexavalent chromium contacts these organs in high concentrations.
Employees can inhale airborne hexavalent chromium as a dust, fume or mist while:
• producing chromate pigments and powders; chromic acid; chromium catalysts, dyes, and coatings
• working near chrome electoplating
• welding and hotworking stainless steel, high chrome alloys and chrome-coated metal
• applying and removing chromate-containing paints and other surface coatings.
• lung cancer in workers who breathe airborne hexavalent chromium
• irritation or damage to the nose, throat, and lung (respiratory tract) if hexavalent chromium is breathed at high levels
• irritation or damage to the eyes and skin if hexavalent chromium contacts these organs in high concentrations.
Employees can inhale airborne hexavalent chromium as a dust, fume or mist while:
• producing chromate pigments and powders; chromic acid; chromium catalysts, dyes, and coatings
• working near chrome electoplating
• welding and hotworking stainless steel, high chrome alloys and chrome-coated metal
• applying and removing chromate-containing paints and other surface coatings.
Nasty stuff.
Thread
Thread Starter
Forum
Replies
Last Post
groperfish
Bicycle Mechanics
12
08-12-18 03:55 AM
yuoil
Classic & Vintage
16
05-25-15 03:35 PM