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SophR so good |
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SophR so good Trackday Trickster
Joined: 08 Aug 2016 Karma :
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Posted: 20:58 - 22 Apr 2017 Post subject: How to straighten subframe/bracket |
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Had a crash last December and this bracket which is directly welded to the frame got twisted, it's what the headlight and clocks attach to and the brake fluid reservoir hits off the clocks as it is.
https://i.imgur.com/54msJL9.jpg
Any clue how to straighten it? We've tried hammering it which did nothing and blowtorch + adjustable spanner but as its hollow that was just pinching the sides together. Would rather not pay someone hundreds to straighten it as insurance are being spastics so I may never get the money back. [/img] ____________________ You win again, gravity! - Zap Brannigan, BCF BBQ 2016 |
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Commuter_Tim |
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Commuter_Tim World Chat Champion
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SophR so good |
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SophR so good Trackday Trickster
Joined: 08 Aug 2016 Karma :
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Posted: 21:23 - 22 Apr 2017 Post subject: |
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Chain is fine though ____________________ You win again, gravity! - Zap Brannigan, BCF BBQ 2016 |
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Andy_Pagin |
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Andy_Pagin World Chat Champion
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Shinigami |
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Shinigami World Chat Champion
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Andy_Pagin |
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Andy_Pagin World Chat Champion
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yen_powell |
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yen_powell World Chat Champion
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SophR so good |
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SophR so good Trackday Trickster
Joined: 08 Aug 2016 Karma :
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redeem ouzzer |
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redeem ouzzer World Chat Champion
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Hong Kong Phooey |
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Hong Kong Phooey World Chat Champion
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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SophR so good |
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SophR so good Trackday Trickster
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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WD Forte |
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WD Forte World Chat Champion
Joined: 17 Jun 2010 Karma :
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Posted: 22:36 - 23 Apr 2017 Post subject: |
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I'd like better pics and ones that show what has to fit
in the bracket and how it does so, but I'll make some guesses
for the hell of it
I'm guessing the red line shows something like the original path of the bracket?
and it's not just a simple tang with a slot but that stuff below is part of the assembly too?
If so, I wouldn't fancy putting much heat near the stem bearings and might consider cutting along the green lines and bending the top of the bracket out close to its original path ( blue lines)
then maybe tack or rivet a top plate with slot on top to tidy it
summat like that mebbe
https://imgur.com/lv5gpDv.jpg ____________________ bikers smell of wee |
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Baggyman |
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Baggyman Crazy Courier
Joined: 20 Feb 2017 Karma :
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Posted: 09:50 - 24 Apr 2017 Post subject: |
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WD Forte wrote: | I'd like better pics and ones that show what has to fit
in the bracket and how it does so, but I'll make some guesses
for the hell of it
I'm guessing the red line shows something like the original path of the bracket?
and it's not just a simple tang with a slot but that stuff below is part of the assembly too?
If so, I wouldn't fancy putting much heat near the stem bearings and might consider cutting along the green lines and bending the top of the bracket out close to its original path ( blue lines)
then maybe tack or rivet a top plate with slot on top to tidy it
summat like that mebbe
https://imgur.com/lv5gpDv.jpg |
I would have guessed the other direction but bolting on bit of steel to put a hole where it should be seems a good bet. Maybe drill through from the side to bolt a 90 degree bit on then drill the top to put he hole in the fight place. You may have to put a cut out in the top to make room for the bolt head but looks botchable ____________________ Old fart
Baghira, modded GS1000 and the T150 I bought in 1978 when I was 21 |
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SophR so good |
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SophR so good Trackday Trickster
Joined: 08 Aug 2016 Karma :
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Posted: 11:19 - 24 Apr 2017 Post subject: |
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Yep it's the other direction.
Yamaha awful schematics of what is one unit:
https://i.imgur.com/sXGITqE.png
Unfortunately can't find the thing that attaches in their parts catalogue...
But it hooks into that slot with the right side flush against it, and a bit round the boss at the end too like so:
https://i.imgur.com/1Hekiwh.jpg
So not sure if bolting something on would help because of the bit round the boss?
I'm very unmechanically minded though.
nowhere.elysium: will PM you ____________________ You win again, gravity! - Zap Brannigan, BCF BBQ 2016 |
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WD Forte |
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WD Forte World Chat Champion
Joined: 17 Jun 2010 Karma :
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Posted: 19:59 - 24 Apr 2017 Post subject: |
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Ahh I see, better pics helped
No idea what bike tho
Now I'm thinking I might try a cut, bash, tack job on it
(what the hell, its not my bike right?)
I'd mebbe run a 1mm cutting disc down the orange line,
bash it straight(er) then tack up the wounds
https://imgur.com/Sux6FDz.jpg[/img] ____________________ bikers smell of wee |
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Shinigami |
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Shinigami World Chat Champion
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SophR so good |
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SophR so good Trackday Trickster
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WD Forte |
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WD Forte World Chat Champion
Joined: 17 Jun 2010 Karma :
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Posted: 14:22 - 25 Apr 2017 Post subject: |
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You're right I dont know the bike but knowing the name and googling for pics helps get context.
I found a pic that shows where and what it does and if it were mine, I'd rather try the cut n shut
technique than cut into/weld up the head stock tube.
I've used it before to modify tube work that was a bit off line.
As it isnt massively load bearing or likely to affect frame strength or geometry
I wouldn't sweat it much
g'wan! get in there with an INOX blade, tap it in into shape then get it tacked up.
pitcher
https://imgur.com/ypkoNtq.jpg ____________________ bikers smell of wee |
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Old Thread Alert!
The last post was made 6 years, 361 days ago. Instead of replying here, would creating a new thread be more useful? |
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