Author |
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Phlegm
| Posted on Tuesday, March 05, 2013 - 08:31 pm: |
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So I'm checking the valves again. When I pulled the frame I had issues removing the shock from the mounting point. It looks like the mounting tabs bent inward and trapped the spacer. Not sure how this happened, from tightening or the weight on the subframe. here are some pics.
This doesn't really look safe to me anymore and i'm thinking about picking up another frame. Anybody have any comments or suggestions to what I should do? Thanks, Michael |
   
Stirz007
| Posted on Tuesday, March 05, 2013 - 11:58 pm: |
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Dang!! How big an ole boy are you? Looks kinda boogered up to me. How many miles, how do you ride, ever been crashed? Seriously, that's looking borderline sketchy. From the photos, I didn't see any cracking, but it definitely looks like the mounting tabs have been stressed to the point of yield (stretching). What I don't get is that it appears to that the yield is in tension, not compression - or the shock has been pulling down on the tab (?). Could it be that the upper shock bolt wasn't a snug fit and it was able to bang around and "waller out" the holes? If that were the case, you might be able to redrill the holes back to concentric (round) shape and slip a larger OD bushing in there to reduce bolt play, thus avoiding frame replacement. If the mount is cracked, you're probably SOL. I defer to the almighty forum.... |
   
Cherry_bomb
| Posted on Wednesday, March 06, 2013 - 02:42 am: |
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ouch...bad accident if that thing's breaking...had the same with the mounts for the subframe...welded it, ok...but this a very vital mount...would change that frame, there are plenty on ebay. |
   
Jdugger
| Posted on Wednesday, March 06, 2013 - 08:55 am: |
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I'd need to see it, but my first blush is that might be ok if you drilled and sleeved it. It's a critical mount, yes, but the underlying boss there is incredibly thick and durable -- to the point your bolt hole yielded, not the boss itself. So, machine the hole square (take it to a machine shop and do this on a mill), and press-fit a steel sleeve in the new hole across the two bosses that has an 8mm (or 5/16) ID so your shock mount doesn't change. The press fit sleeve should be flush with the face of the boss -- think of it like a bearing spacer in a wheel. So, you will be torquing down onto the steel sleeve when you tighten the shock into place, but now the pull/push load on the boss is into a steel piece that's distributing that load into a larger radius of the aluminum hole. |
   
Tq_freak
| Posted on Wednesday, March 06, 2013 - 09:25 am: |
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Jdugger has the right idea it is fixable To me it looks like the bolt might have been loose and hammering back and forth and oval-ed the hole out. I machine shop should have no problems adding a boss. But I have no idea what they might charge. |
   
Jdugger
| Posted on Wednesday, March 06, 2013 - 10:27 am: |
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To me, the big challenge is going to be making sure it's square so you are not binding up the slide of the shock once re-installed. The square has to be horizontal "across" the swingarm. It's actually not critical at all if it's got "twist". It would be a huge pain in the ass, but the way to ensure this would be to take the motor, tank and swing arm into the machine shop together. One other possibility would be to take the swing arm pivot axle in and see if they can use that as a reference for square. |
   
Smoke
| Posted on Thursday, March 07, 2013 - 05:31 am: |
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i bought a wrecked 1125 in 08 that had those ears broken off. we ended up pulling the frame off and manufacturing a replacement boss and welding it in. i fabbed a locating fixture, ground the frame flat and fitted the replacement piece. with the current frame pricing on ebay i would go that route instead. i don't think it would be cost effective if we had to do it over "on the clock" so to speak. tim |
   
Phlegm
| Posted on Thursday, March 07, 2013 - 04:02 pm: |
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Thanks guys. My friend has access to a mill and a press, so fixing it is definitely my main option right now. The frame is a salvage title, but last time I checked the valves, the tabs (dogs?)seemed to be fine. Could have just overlooked it though. To answer stirz question,I weigh about 200, I ride on the street, pretty aggressively I think, I try to get it over 100 a lot to ride it like it should be ridden. I do wheelies when I can and try to set her down gently. |
   
Stirz007
| Posted on Thursday, March 07, 2013 - 07:09 pm: |
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Phlegm - just jokin' with ya bro...

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Kanatuna
| Posted on Sunday, March 24, 2013 - 01:18 pm: |
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My thought would be to cut off the existing and weld up a new tab. Any local fab shop should be able to do that for about $50 or so. |
   
Phlegm
| Posted on Thursday, April 18, 2013 - 03:48 pm: |
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Well, here is how I "fixed" it. Wes from pink gorilla motorcycles was selling a used frame with 3k miles on it for 600 bucks. I bought it from him and just replaced my frame. I like the original powder coat a lot better then the polished aluminum I had. Now I just need to repowder coat the rims to a matching blue or black. |
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