TRX250R.ORG
Workshop => Suspension and Chassis => Topic started by: 87r on November 11, 2014, 09:25:03 PM
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So I ran into a snag last weekend out at the dunes. My rear rotor started grinding into my caliper mounting bracket. I have looked at this thing over and over again and cant figure out how my axle/rotor have shifted to the left side/what the eff moved. The only thing that seems out of place is it looks like there are more threads showing where the big axle nut is at, but I might just be imagining things. the axle is nice and tight with no movement back/forth or side to side, and rolls freely with the brakes removed. I have never removed/pulled apart a rear axle/carrier so this is new to me.
any thoughts on what could have moved? Thanks
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My thoughts are that sounds like #4 may have come off. #35 is a small circlip that keeps it in place. I could be wrong but you might want to check if there is anything in the slot in part #2 to the right. I have seen those pieces wear off before. Check to see if #28 is sill there. #28 holds the brake assembly which is bolted to #2 where its supposed to be.
(http://www.servicehonda.com/hard%20parts/atv/trx250r%2086-89/swingarm_86-87.jpg)
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Put the rear end of your bike on a jack stand, look real close or pay attention to your carrier both left and right side. It may be your carried broke and shifted everything 2 one side. If carrier has never seen or had bearings replaced it may be your carried has seen better days. I had the same thing happen 2 years ago at glamis bearing got bad got hot and ripped a chunk off carrier therefore sliding axle to chain side. Could not find anything wrong or what happened until I looked at carrier and where adjuster is used to adjust chain aluminum chunk was missing.
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All of the parts are there, including the slider and the c-clip. I have looked the carrier over and picked the rear end up to check the axle. I gave it a few love taps with a hammer to see if it would move but the axle is tight and firm. I have to think its in the carrier and just something I can't see it. The carrier was replaced probobly 8-10 years ago. How does the rear end come apart? Looks like I'm doing some exploratory surgery. So there is no adjusting the axle left/right via the large jam nut on the right side of the axle correct?
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Take off the wheell/hub on the axle nut side, then back the axle nut toward the carrier, remove the circle clip on the axle and then you can remove everything down to the caliper mount, the carrier comes out the side with the hub still on.
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so I just attempted to take apart my rear ends and may have stumbled on something. it appears that the nut threaded all the way out to the wheel side of the threads, and when I try to spin it, it moves, but then gets real tight. I put more muscle into it and it popped and it was loose again, but the nut does not move no matter how much I spin it, so im guessing this thing is stripped/cross threaded. may this be my issue?
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I had an issue similar to this once upon a time. Let me dig up some pictures.
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That nut tightens up to a circle clip that direction, if you screw it the opposite direction you can remove that circle clip and all that stuff slides off. I tried to explain that in my previous post...Somewhere on the web is a PDF of the Honda service manual, you should check it out.
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My Problem was the sprocket hub got eaten away. I thought it was lock but related but when I took it all apart I found the real issue. Below is a picture of the worn out sprocket hub next to the new
(http://thumbnails38.imagebam.com/17507/5ed89a175062263.jpg) (http://www.imagebam.com/image/5ed89a175062263)
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The axle nut has left hand threads so push down on the wrench to loosen it, both nuts tighten towards the wheel. If it's popping it's probably rusty, try pb blaster or liquid wrench, or wd40 if you don't have penetrating oil. Here's an exploded view:
(http://forums.trx250r.org/vbulletin_imports/322_3689_2017-04-18_4170.jpg)