Need help with a stubborn NUT!!

[California]

Need help with a stubborn NUT!! thanks Dusty

It must be the season! Would it help if we sent him PM's?
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[tcarter1]

I would trying heating it with a torch. This usually will loosen the most stubborn of nuts.

 

[schmism]

it might sound baisc but id get a friend or 2 to give me a hand (litterly)

2 or 3 hand clamps on the shaft should generate enough resistance to run the nut on with an impact.

if the shaft has a thin coat of oil, spay it down with brake cleaner first to get the best hand grip.

If it was my lift id grind a slot in the end of the shaft for a big screwdriver and run the nut on by hand (open end wrench/cresent wrench).

 

[Corm]

Would it be possible to weld a short piece of square stock onto the end of the shaft, just small enough so the nut could slip over it? Seems like that would give you something you could use a monkey wrench on to hold the shaft while you tighten the nut. Afterwards you could always grind it off if you needed to.

Corm

 

[JoeL4330]

For me, grinding is easier than welding ...see my previous post about grinding two flats on the end and using a wrench "behind" the locknut, instead of in front.

 

[wushaw]

If you only have to get 1/4" of thread exposed beyond the nut then why not use a sizeable pair of curved jaw vise grips on the lower threaded portion that will not be used for anything.
I wouldn't heat that nylon locking nut too much because you may damage the nylon portion and loosing what it is designed for.

 

[cp1969]

If I get lucky, then I will get the 1/4" exposure that the instruction manual calls for. If not, then it will just have to do.

I assume you mean 1/4" of threads protruding from the nut when tightened? This could be important.

If weight is going to be supported by the underside of this nut I would not settle for less. If doesn't carry load, then no big deal.

 

[Dusty]

Didn't have time to work on it today, until late this evening. I put the nut and socket into boiling water and cooked them for a good five minutes. Then I attempted to screw the nut onto the shaft. Still no luck with it. I did call the lift manufacturer, and they said that I should grab the threads with a pipe wrench to hold the shaft. I have a hard time wanting to do that, and will only as a last resort. If I have time tomorrow, I have another idea that I will tell you about.
Dusty

 

[3RRL]

Dusty,
You said the vise idea was out because you couldn't get the cylinder to the vise? Is that right? Why not take the vise to the cylinder? If you have enough room to clamp on the shaft, using leather or aluminum or wood as jaws, clamp it on the shaft and hold it still via hand or a wrench of some type. Then twist that stubborn nut? Just a thought if you have the room?

 

[AlanB]

On the motorcycle front forks we do, when I get a weird one in, I will drill the hole in a piece of hardwood, about the size, or slightly smaller then the shaft, then split the board in two with the bandsaw.

Large C clamp on each side of the cylinder (or mount in vice if it is a MC fork) and airgun away.

Thicker wood, or multiple clamps give more clamping force.