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  #1 (permalink)  
Old 09-01-2007, 04:37 PM
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I need a special tool for this Nut

I know it doesn't look like a not, but the shaft that it is on is threaded.
It doesn't look like it, but this is two seperate pieces:



this is the opposite end of the shaft.


I don't have to take both nuts off, one side would work fine. I have already attempted to use a wrench hoping to grab the top section of the nut. There is not enough meat on the nut for me to get a good grab with a wrench.

Has anyone every seen a tool, be a socket or a wrench that would remove this special type of nut.
I will be removing and reinstalling these nuts on several different cars.

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Old 09-01-2007, 05:14 PM
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Well, pics like this are why I refuse to work on modern stuff.

That nut almost looks like a one-way-only type "teeth" on the outside of the nut??? Like they don't want anyone taking it off??

I love my assortment of hammers & sharp chisels I'd test to see if the nut was hardened steel, and if not, go at it with a thin angle chisel to try to back it off. If not, split it.

If that does not look like it would work, I'd then mig weld another nut to that nut and then use an impact gun.

It looks like a self locking nut, so you'd need to loctite the new nut, I guess.
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Old 09-01-2007, 05:30 PM
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Quote:
Originally Posted by F&J
Well, pics like this are why I refuse to work on modern stuff.
well said Its stuff like that that led me to become a welder instead of going to school for mechanics......I'll wrench on my own stuff on my own time
Shane
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Old 09-01-2007, 08:37 PM
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nut cuttin'

From what I can tell by the pics you posted, it looks like the shaft may have been machined with a bit of a flat on either side and then the nut was flattened against the shaft on both sides to lock it into place permanently. If that is the case, the only way it will come apart is to cut it off with a chisel or die grinder. Even if you could get a wrench on it I don't think it would turn because of the way the nut is pinned to the shaft.
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Old 09-01-2007, 08:50 PM
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Nut

That definitely looks like something you'll have to take a die grinder or a chisel to. Just out of curiosity, what is it?
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Old 09-01-2007, 08:52 PM
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Nut

BTW, a Dremel Tool with a reinforced cut off wheel is very handy for cutting nuts like that one. It's much easier to control than a die grinder in a tight area or where you want a more precise cut.
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Old 09-02-2007, 04:42 AM
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I think the oly wway you are going to get it off is to cut it off. On one end you can get vise grips but the other end you are going to have some problems. It loks like what they would call a "tamper resistent locknut" but I have searched and searched and can not come up with anything. I have quite a few sites bookmarked that shows specialty fasteners and nuts, and no on is showing anything like that. The bad thing is that when you get it off, chances are you are not going to replace it with the same thing unless you find out what it is exactly. What does it go on? It looks like an alternator bracket in the one photo. And if you do replace it with a different style of nut make sure you use either a "spinlock nut" that has the teeth on the bottom of the flange, and or use some RED locktite to hole it on. The red will hold the best, better than the blue, but will require some heat or impact to remove it if need be in the future. And if you don't have any red Locktite, you may want to look somebody up that has for no more than what you would need. That stuff is outrageous in price.

Spinlock nut
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Old 09-02-2007, 05:35 AM
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Is it possible to find a Service Manual that covers this part?
When specialty tools are called for, they are usually shown in the SM.
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Old 09-02-2007, 08:42 AM
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It might help if you told us what you are working on and what that is. OTC makes a lot of speciality tools but without knowing what your working on it would be hard to look one up.
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Old 09-02-2007, 12:05 PM
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It appears it is an FEAD idler pulley. I imagine that it is assembled that way as not to fly apart and also make it not serviceable, that is they want you to buy a new one.
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Old 09-02-2007, 01:13 PM
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I have run into that a couple of times on critical parts (in my case on an overhead crane) that are not intended to be serviced by unqualified personal due sometimes to safety reasons. On the ones I worked on they got me even after cutting the thing off because I then found the shaft to have an odd size and thread.
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Old 09-02-2007, 01:53 PM
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This is a modern day throttle body which uses drive my wire to open and close.

I need to pull the shaft out so that i can bore it out. I start a small business making High Flow throttle bodies and this is my next project. I know there is one company that make a high flow throttle body for the same model car that this unit belongs to.

I can always cut the nut off but if i do put this part into production i would need a faster way to remove the nut.

This is the inside of the throttle body, the items you see are not normally visible so don't be surprised if you haven't seen anything like this. This throttle body is also off a 2001 vehicle so Its a whole new era...
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Old 09-02-2007, 03:46 PM
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Would a spline socket work on this? Perhaps a twist socket?
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Old 09-02-2007, 03:57 PM
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Quote:
Originally Posted by SteveU
Would a spline socket work on this? Perhaps a twist socket?
that sounds about right, find a twist socket that fits around the bottom half of the nut, tap it on a bit with a hammer.... use an impact to take it off. twist sockets save lives.
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Old 09-02-2007, 04:06 PM
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Quote:
Originally Posted by Riot Racing




This is a modern day throttle body which uses drive my wire to open and close.

I need to pull the shaft out so that i can bore it out. I start a small business making High Flow throttle bodies and this is my next project. I know there is one company that make a high flow throttle body for the same model car that this unit belongs to.

I can always cut the nut off but if i do put this part into production i would need a faster way to remove the nut.

This is the inside of the throttle body, the items you see are not normally visible so don't be surprised if you haven't seen anything like this. This throttle body is also off a 2001 vehicle so Its a whole new era...
AHA!

That explains it. When assembled, engineering does not want it removed. It is an assembly. The nut is most likely a-



-whereby it is tightened on the shaft thread and then compressed (crimped-locked) to arrive at the present appearance. The question is, if the nut is cut off (it cannot be removed normally) will the threaded shaft be concentric to accept another type of fastener to hopefully be removable and cause a lock that will not loosen.
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