Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Framebuilders Thinking about a custom frame? Lugged vs Fillet Brazed. Different Frame materials? Newvex or Pacenti Lugs? why get a custom Road, Mountain, or Track Frame? Got a question about framebuilding? Lets discuss framebuilding at it's finest.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-10-08, 05:07 PM   #1
squirtdad
Senior Member
Thread Starter
 
squirtdad's Avatar
 
Join Date: Jul 2006
Location: San Jose (Willow Glen) Ca
Bikes: '89 Miyata 1400, '82 nishiski (current utilty/commuter project)
Posts: 4,126
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 39 Post(s)
What to look for in a "good" frame repair

Hi,

I am hoping to go look at an old cruiser frame for a father/son project. Looking at the picture, it looks like primer around the head tube and the fork looks a little bent. I suspect that there might have been a repair done.

What should I look for in a quality repair?

thanks
squirtdad is offline   Reply With Quote
Old 06-13-08, 08:34 AM   #2
chesspupil
EZ-1 SX to ebike Project
 
Join Date: Jun 2008
Location: SE GA
Bikes: Sun EZ-1SX
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The shape of the weld. The presesnce of any holes (porosity) in the weld indicates a lazy welder with a lack of pride in workmanship. If you can see the hole thorugh paint then IMO it is a point of failure. Holes 1/32 or less may be ok if there is only 1. Is the fillet the same size thorughout? doe the edges of the weld blend smoothly (no fingernail catches) Is there distortion in the metal adjacent to the weld. If the weld is bare, use a flashlight and bounce it side to side to look for shawdows... scrutinze any you see as they indicate less than 90 deg transistions. fillet size Should be atleast 1/8" high and wide (look in 2 directions). Is there any mis-match? Does the repairshow a contining curve if the metal is bent or is it angled other than as it should.

I'm a metals inspector, but a poor welder myself.

Send me a link to the pic... preferably at 3 foot, 1 foot and as close as focuse will allow.

Last edited by chesspupil; 06-13-08 at 08:45 AM.
chesspupil is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 09:35 PM.