stuck triple clamp nut - Honda Motorcycles - FireBlades.org
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post #1 of 13 Old 05-24-2017, 11:21 AM Thread Starter
 
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stuck triple clamp nut

hello all
not sure about the name of it but yes, it's the upper part of the fork tree, the one that holds the forks tubes and the ignition switch.
I want to change mine but the 30mm nut on top is very very tight.
How would you remove it?
is it that only pneumatic tools can remove it ? I have a blow torch but I don't really want to go through removing everything around the fork

thank you!
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post #2 of 13 Old 05-24-2017, 11:33 AM
 
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Re: stuck triple clamp nut

Have you tried a long socket extension bar? And then a bit of scaffold bar over that to increase the length?
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post #3 of 13 Old 05-24-2017, 2:59 PM Thread Starter
 
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Re: stuck triple clamp nut

yes it won't budge at all
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post #4 of 13 Old 05-24-2017, 4:30 PM
 
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Re: stuck triple clamp nut

Rather than heating it, which I don't think I'd fancy, I wonder whether the spray that plumbers use to freeze pipes could cause the nut to contract a tiny bit and free it up, as that's the equivalent of taking a torch to the clamp. I've never tried this, but often wondered if it would work.
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post #5 of 13 Old 05-25-2017, 2:10 AM
 
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Re: stuck triple clamp nut

You don't want it to contract that will make it tighter
Just get a big bar or phnematic gun on it
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post #6 of 13 Old 05-25-2017, 4:01 AM
 
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Re: stuck triple clamp nut

PB Blaster, a proper breaker bar and put more muscle into it !
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post #7 of 13 Old 05-25-2017, 4:31 AM
 
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Re: stuck triple clamp nut

Quote:
Originally Posted by Gaffa22 View Post
You don't want it to contract that will make it tighter
Just get a big bar or phnematic gun on it
Not strictly true - you don't want the triple clamp to contract, but you do whan the nut to contract. In the same way that if you were using heat, you wouldn't want the nut to expand, but you would want the clamp to. It's all relative.
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post #8 of 13 Old 05-25-2017, 6:26 AM
 
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Re: stuck triple clamp nut

Quote:
Originally Posted by DannyC View Post
Not strictly true - you don't want the triple clamp to contract, but you do whan the nut to contract. In the same way that if you were using heat, you wouldn't want the nut to expand, but you would want the clamp to. It's all relative.
I'm confused, I've been using torches and liquid nitrogen for years to remove seized/corroded items. I've always heated the female piece and cooled the male piece. I've removed many a frozen stud and installed countless bushings in this manor. My question, does expansion/contraction work differently across the pond, because I think you have it backwards my friend.

The one exception, I have installed hydraulic lines on C-17's. They use a Cryo-Fit sleeve for joining lines together. The sleeve actually expands when submerged in liquid nitrogen. It is then slipped over the tubing and as it cools it contracts around the tubing and seals tight against 4000 psi hydraulic pressure.

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Last edited by fj1200rj; 05-25-2017 at 6:36 AM.
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post #9 of 13 Old 05-25-2017, 8:28 AM
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Re: stuck triple clamp nut

Quote:
Originally Posted by fj1200rj View Post
I'm confused, I've been using torches and liquid nitrogen for years to remove seized/corroded items. I've always heated the female piece and cooled the male piece. I've removed many a frozen stud and installed countless bushings in this manor. My question, does expansion/contraction work differently across the pond, because I think you have it backwards my friend.

The one exception, I have installed hydraulic lines on C-17's. They use a Cryo-Fit sleeve for joining lines together. The sleeve actually expands when submerged in liquid nitrogen. It is then slipped over the tubing and as it cools it contracts around the tubing and seals tight against 4000 psi hydraulic pressure.
I'm with FJ on this one. Heat the female, Chill the male.

One trick that I've used over the years is to tighten it a touch and then loosen. Getting it to move is the first hurdle. When you're trying to loosen something that hasn't moved for years the metals that are wedged together form a ground flow and when it was tightened, that was in that particular direction. The elements form in the microscopic gaps and create God's Locktite, rust, dirt and aluminum oxidation. When you have two different metals one being something as soft as aluminum, that bond gets even tighter. Give it a shot of PB Blaster, WD40 or Liquid Wrench. Go clockwise a hair and then it should come off.

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post #10 of 13 Old 05-25-2017, 4:50 PM
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Re: stuck triple clamp nut

I can't quite understand the methodology of contracting the nut, I'd contract with the bolt and expand the nut, simple physics.
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post #11 of 13 Old 05-25-2017, 6:43 PM
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Re: stuck triple clamp nut

Heat the sucker. I use a handheld torch with a small camping propane bottle. The clamp will expand before the nut, so just use common sense when using the heat. The nut and the stem are steel, so they may expand at the same rate. Either way, a few heat cycles should break any corrosion on the threads. Then put a block of wood on top of the nut and give it a few good whacks with a hammer.

A large 30mm box end wrench with the steering locked to the left should do it.

Then make sure the stem bearing nut and lock nut are still properly tightened.

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post #12 of 13 Old 05-25-2017, 9:48 PM
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Re: stuck triple clamp nut

If you want anything polished, send to @IanDoohan and he'll take care of the nut too. I've heard he's an expert with loose nuts.
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post #13 of 13 Old 05-25-2017, 10:00 PM
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Re: stuck triple clamp nut

Quote:
Originally Posted by lanbrown View Post
If you want anything polished, send to @IanDoohan and he'll take care of the nut too. I've heard he's an expert with loose nuts.
I'm have a good many loose screws, nuts though, they stay put

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