Increase the one that is shorter first.
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It will if it's a 36" piece of tubing on an 18" wrench.
In any case, I'd only use a cheater bar on parts I'm going to throw away after disassembly. I'd never feel comfortable sending out a part rated for 40 ft/lbs torque after it's had 200/ft lbs+.
flots.
Sorry, but that's simply not a clear answer and is entirely useless as a response. Putting a piece of tubing over a wrench that already has an 18-inch long handle will not increase leverage as I learned the concept in my own physics classes. Now if you can stop being demeaning by suggesting it's elementary and have something constructive to offer that doesn't involve talking down to me, please do so.
I don't need to reread the physics book. I know the theory. It's the practical application that I'm struggling with. I'm not strong enough to apply the amount of force necessary while holding the regulator with one hand and pulling the wrench with the other. The length of the lever is determined by the length of my reach. Therefore, a vise makes the most sense because I can increase my own distance from the object I'm trying to dislodge. I was hoping there was some other way beyond going out to get a special vise, but apparently there isn't.Reread the physics book. Extending the handle length will decrease the force YOU need to apply. but you really need a vice or something else that will hold the regulator steady. Then you will be able to use 2 hands and may not need the added leverage.
Actually, the specs say 266 inch-lbs. And I don't find it an easy one handed torque despite the fact that I'm not a little girl.I really think your problem is not securing the reg in a vise. Most yoke nuts only call for 20-30 ft lbs with is not much at all and should an easy one handed torque for any adult. Granted there will be the occasional one that is stuck or some nutcase cranked down on it but if you are doing your own regs, that should not normally be an issue.