Go Back   ChinaRiders Forums > Technical/Performance > ATVs
Register FAQ Community Calendar Today's Posts Search
Reply
 
Thread Tools Search this Thread Display Modes
Old 08-24-2009, 12:55 AM   #1
TurboT   TurboT is offline
 
Join Date: Sep 2008
Location: Surrey, B.C., Canada
Posts: 2,185
Broken Frame - Gio Hummer

So Gang,

What causes frame breakage in this spot? Been welded once already, probably not well, but it broke there on it's own before the weld.

Keep in mind, this is a 40lbs 5 year old's quad..and it is about 2-3months old.





 
Reply With Quote
Old 08-24-2009, 12:58 AM   #2
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
Without seeing more of the machine, I'm not sure what's causing the breakage. I can tell you that I'd stick a slug inside the frame before welding it up to add strength.
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
Reply With Quote
Old 08-24-2009, 01:02 AM   #3
TurboT   TurboT is offline
 
Join Date: Sep 2008
Location: Surrey, B.C., Canada
Posts: 2,185
Thanks..

I will pass that suggestion on for the next buzz job.

Must be something that would cause this.. I don't think it was even an existing weld spot, but not sure on that..


 
Reply With Quote
Old 08-24-2009, 01:13 AM   #4
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
That plate that is welded just above the break is the mount for the swingarm. Since that plate sort of acts as a gusset, I'm not surprised that the break happened just below it.

I would look on the underside of the quad frame for witness marks that indicate an impact with a large rock. Since the shock is probably too stiff for a 40 pounder to compress, the frame took the impact. Kids tend to repeat the same riding pattern that hey're comfortable with, so maybe this isn't the first encounter with said rock.
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
Reply With Quote
Old 08-24-2009, 01:16 AM   #5
TurboT   TurboT is offline
 
Join Date: Sep 2008
Location: Surrey, B.C., Canada
Posts: 2,185
Quote:
Originally Posted by Weldangrind
That plate that is welded just above the break is the mount for the swingarm. Since that plate sort of acts as a gusset, I'm not surprised that the break happened just below it.

I would look on the underside of the quad frame for witness marks that indicate an impact with a large rock. Since the shock is probably too stiff for a 40 pounder to compress, the frame took the impact. Kids tend to repeat the same riding pattern that hey're comfortable with, so maybe this isn't the first encounter with said rock.
Very interesting deduction.

There is a a lot of dirt filling going on there and some big rocks around so that is a highly likely scenario.. and this little guy spools this thing up quite a bit. He's quite competent on it for his age.


 
Reply With Quote
Reply



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

Forum Jump


All times are GMT -4. The time now is 06:48 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.