Grind marks in the tubes
#1
Junior Member
Thread Starter
Join Date: Jun 2011
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Grind marks in the tubes
Howdy everyone. My friend has had this 1985? Peugeot P6 for a while that he's wanted to turn into a single speed commuter bike but recently gave up on it and turned the project over to me. He stripped down all the components a ground off the cable guides on the frame with what appears to be an angle grinder. I was cleaning up the areas that were roughed up by the grinding and it seems that he ground a bit deeper than the actual braze-ons and into the actual tubing of the frame. It's not that deep, I'd say they're less than 1mm into the tubing, but its definitely noticeable. I'm thinking of filling the marks with JB Weld for aesthetics but I'm wondering will these grind marks affect the integrity of the frame? It's made out of Carbolite 105 tubing which is Peugeot's in-house brand of tubing. Tubing diameter is fairly small, not super small though. Not sure on the thickness though. Any thoughts?
#2
Old fart
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,936
Bikes: Several, mostly not name brands.
Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3571 Post(s)
Liked 3,367 Times
in
1,916 Posts
Probably not a structural issue -- carbolite is pretty thick tubing. If it bothers you, fill the gouges with lead or silver solder, file smooth, and repaint.
Why do people think they have to grind stuff off their frames, anyway? Just leave it alone, and save everybody some grief down the road...
Why do people think they have to grind stuff off their frames, anyway? Just leave it alone, and save everybody some grief down the road...
#3
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 38,545
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 139 Post(s)
Tagged: 1 Thread(s)
Quoted: 5703 Post(s)
Liked 2,432 Times
in
1,345 Posts
Unless the cuts are in a critical area of a tension member, like under the downtube up near the head, I wouldn't sweat it. These frames are made of a relative ductile grade of steel and are considerably overbuilt by today's standards. If the cut is deep enough to cause a crack, it'll take some time, and propagate slowly giving you plenty of warning. Hopefully the fork is unaffected because there's much less (zero) safety margin if a fork should fail for any reason.
Even if it's in a critical tension area, I still wouldn't sweat, but I'd keep a closer eye on it.
Even if it's in a critical tension area, I still wouldn't sweat, but I'd keep a closer eye on it.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
#4
Junior Member
Thread Starter
Join Date: Jun 2011
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Okay thanks guys. I'm going to fill em up with solder just so they dont show up under the new paint.
John I agree, I see no reason to remove the cable guides other than aesthetics. Damn kids and their fixed gears, GOD FORBID you run a rear brake...
John I agree, I see no reason to remove the cable guides other than aesthetics. Damn kids and their fixed gears, GOD FORBID you run a rear brake...
#5
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 38,545
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 139 Post(s)
Tagged: 1 Thread(s)
Quoted: 5703 Post(s)
Liked 2,432 Times
in
1,345 Posts
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
#6
Junior Member
Thread Starter
Join Date: Jun 2011
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Yup. I've dabbled in knifemaking before. A good sharp file will do anything a grinder will do with a whole lot less cussing.
Thread
Thread Starter
Forum
Replies
Last Post
henrik19
Framebuilders
3
02-02-11 03:34 AM