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So ive been trying to remove the swing arm from the frame of my 79k and i cant for the life of me remove the long bolt it pivots on. everthing ive read says it should "tap" out but i put a nut on to protect the threads and have been trying to knock it out but it wont budge! Any tips/hints/suggestions?
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Administrator
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I had the same issue with mine.Ended up that what the issue was,it had been neglected,not greased properly,and the bolt was seized to the tube the bushings.I ended up forcing mine out and destroying the bushings.Cost about $50 for new brass bushing,but i have seen them on ebay since for around $20-25.That bolt holds a tube that rides in the bushings.What happens is the bolt/tube gets rust scale on it and doesnt want to slide out because it has "grown" too large to fit through the bushings.You may try alot of penetrating oil,i like PB Blaster,and see if you get lucky,but the amount of scale that was on mine,it would have never came out without taking the bushing with it.Good luck,hope this helps!
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Administrator
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I had the same issue with mine.Ended up that what the issue was,it had been neglected,not greased properly,and the bolt was seized to the tube the bushings.I ended up forcing mine out and destroying the bushings.Cost about $50 for new brass bushing,but i have seen them on ebay since for around $20-25.That bolt holds a tube that rides in the bushings.What happens is the bolt/tube gets rust scale on it and doesnt want to slide out because it has "grown" too large to fit through the bushings.You may try alot of penetrating oil,i like PB Blaster,and see if you get lucky,but the amount of scale that was on mine,it would have never came out without taking the bushing with it.Good luck,hope this helps!
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Cool, I'll give the penetrating oil a try. If it doesnt work tho, how did you end up forcing it out on your bike?
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Administrator
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I put the nut back on the bolt,just like you did,but i used a block of wood and a rubber deadblow hammer.Destroyed the bushings,bolt & nut was fine
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Well I still wasnt able to knock it out, I worked a lot of penetrating oil around the bolt and beat on the thing with a deadblow mallet, but it still won't even budge. So I got as much oil around the bolt as I could and I'm gonna leave it overnight and hopefully it loosens up, but if that doesnt work any more ideas as to how to get this thing out?
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Administrator
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Heat.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."
1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
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Administrator
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Yeah,probably have to try heat.The factory bushings are a sort of composite with what looks like fiberglass reinforcing.Shouldn't take much to melt them out.If all else fails and you have to cut the bolt,I do have one I can sell you.Another alternative to buying a bolt,and i wish I had done this one mine,would be a good piece of all-thread rod with nice shiny stainless steel acorn nuts on both ends.Looks nice!
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I'm not entirely sure of what I'm going to say but I would be cautious about using All-thread rod. I suspect the stock Bolt is made of high(er) carbon steel for strength and toughness. The swing arm bolt must take a fairly high sheer load, including significant shock at times and I'm not sure all-thread rod will be up to the demands of the job. I would hate anyone to have a nasty accident if the rod failed.
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Administrator
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You are right about that,Peter.It's not real cheap,but you can get grade 8 all thread.
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What I was concerned about was someone justngetting regular low carbon threaded bar from the hardware store
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Administrator
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Why not use a piece of rod, and thread both ends? Or cut the head off the stock bolt, and thread that end? It should be long enough.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."
1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
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If you torch the bolt and let it cool It'll come out. esp, if you use the map gas, (yellow canister) it burns much much hotter then the blue canisters. torch it beat it and be done.
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Administrator
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Peterwh wrote
What I was concerned about was someone justngetting regular low carbon threaded bar from the hardware store
I know.I should have clarified it better.Thanks for looking out for me!
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Locked
