Threaded Hub Nut Removal???
Discussion
Evening,
I recently acquired a new shape Mini which needs a few bits doing. I'm needing to remove the driveshafts but one of the hub nuts looks like it's been cross threaded when it was put on and it won't come undone. I have tried absolutely everything to undo it but to no avail. I am currently using a (now blunt) chisel to slowly smash my way through the nut but does anyone have any other techniques or can suggest any tools I should try for a quicker and easier removal?
[URL=http://s274.photobucket.com/user/smonty862000/media/70ECD230-0E98-4DFE-A39F-0AB6BCEBF3FB_zps0yfl07bg.jpg.html]
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Cheers,
Sammo
I recently acquired a new shape Mini which needs a few bits doing. I'm needing to remove the driveshafts but one of the hub nuts looks like it's been cross threaded when it was put on and it won't come undone. I have tried absolutely everything to undo it but to no avail. I am currently using a (now blunt) chisel to slowly smash my way through the nut but does anyone have any other techniques or can suggest any tools I should try for a quicker and easier removal?
[URL=http://s274.photobucket.com/user/smonty862000/media/70ECD230-0E98-4DFE-A39F-0AB6BCEBF3FB_zps0yfl07bg.jpg.html]
[/URL
Cheers,
Sammo
Even cross threaded they will undo with a decent impact gun and compressor, I've probably undone thousands and only a fraction of those have involved a breaker bar and scaffold pole extensions.
Usually the nut takes the brunt of the cross threading and the cc joint just needs cleaning up.
Now you have smashed the nut to bits you just have to carry on tbh, it's hard to get a cutting disc of any size to make a reasonable dent in the nut due to the way the hub flange sticks out.
You will need a new CV joint too so don't worry about damaging that but be careful not to expand it as you will never get it through the flange without grinding it down with a die grinder.
Usually the nut takes the brunt of the cross threading and the cc joint just needs cleaning up.
Now you have smashed the nut to bits you just have to carry on tbh, it's hard to get a cutting disc of any size to make a reasonable dent in the nut due to the way the hub flange sticks out.
You will need a new CV joint too so don't worry about damaging that but be careful not to expand it as you will never get it through the flange without grinding it down with a die grinder.
Edited by Jimmyarm on Thursday 10th September 21:12
Easy way to tell if it is cross-threaded because it will not be flat to the mating surface that the nut butts up to on the hub.
Cross-threaded by definition means the nut was not engaged square on, so will not do up square.
I think it looks right to me, but it is hard to tell from end on pictures.
I chisel is mure likely to do irrepairable damage to the Cv thread, so be careful.
Have you tried application of heat?
Cross-threaded by definition means the nut was not engaged square on, so will not do up square.
I think it looks right to me, but it is hard to tell from end on pictures.
I chisel is mure likely to do irrepairable damage to the Cv thread, so be careful.
Have you tried application of heat?
andyiley said:
Just a quick word of warning.
The torque figure for these is 182 nm, which equates to 134 lbf, that is a 182 kg man on a metre long scaffold pole! Have you been applying anything like that amount?
I might just being stupid, but isn't that a bit excessive? Assuming acceleration due to gravity is approx 10m^2, then mass = F/A = 182/10 = 18.2kg. The torque figure for these is 182 nm, which equates to 134 lbf, that is a 182 kg man on a metre long scaffold pole! Have you been applying anything like that amount?
So it should it not be equivalent to 18.2kg on the end of a meter long scaffolding pole?
Jimmyarm said:
An air hammer with a decent chisel bit is probably the easiest way.
A 4.5 inch fresh cutting disc might get a bit of bite on it to start you off (obviously going into the end of the CV joint too).
Have fun, I hate doing stuff like that is it always takes forever !
Unfortunately I'm doing this at home on the driveway so don't have access to any air tools A 4.5 inch fresh cutting disc might get a bit of bite on it to start you off (obviously going into the end of the CV joint too).
Have fun, I hate doing stuff like that is it always takes forever !
I'm going to pop to B&Q tomorrow to pick up a sharper drill bit so will have a look at the cutting discs available. andyiley said:
Just a quick word of warning.
The torque figure for these is 182 nm, which equates to 134 lbf, that is a 182 kg man on a metre long scaffold pole! Have you been applying anything like that amount?
The fat bThe torque figure for these is 182 nm, which equates to 134 lbf, that is a 182 kg man on a metre long scaffold pole! Have you been applying anything like that amount?
d would weigh over 28stone. How the fk are you going to suspend him from a one metre scaffolding pole?sparkythecat said:
andyiley said:
Just a quick word of warning.
The torque figure for these is 182 nm, which equates to 134 lbf, that is a 182 kg man on a metre long scaffold pole! Have you been applying anything like that amount?
The fat bThe torque figure for these is 182 nm, which equates to 134 lbf, that is a 182 kg man on a metre long scaffold pole! Have you been applying anything like that amount?
d would weigh over 28stone. How the fk are you going to suspend him from a one metre scaffolding pole?Gassing Station | Home Mechanics | Top of Page | What's New | My Stuff