Seized hub nut

[montana]

Not a clio but a DC2, replacing the inner CV boots which means removing the driveshaft.I have removed one side with a little bit of a fight but the NS is nearly impossible to remove.

I am using plus gas on the hub nut and the deformed section of the nut has been bent away from the driveshaft spline as best i can,i have used a chisel / lump hammer all around the face of the nut and tried...

• Heat plus Impact wrench (Clarke corded, however not too sure of the health of this as it couldn't undo a wheel nut i found out after). I cycled this 4 times with no luck.
  
• Breaker bar + 5 ft extension, which ended up snapping my breaker bar head (1/2 drive). Didnt use all my body weight before it snapped.
  
• 1ft breaker bar with all bodyweight (around 200ft/lbs)

Options;

1. Thinking of purchasing the Sealey CP2400 cordless impact wrench, but unsure if this will be up to the job. Rated at around 330ft/lbs, so should be , but unsure... Any one with this impact wrench got an opinion?
   
2. Try a 3/4 breaker bar / socket combination
3. Cut the hub nut using a dremel or similar, however this is the last option..

Any ideas?

Cheers

 

[Jonz]

1 inch bar and a 10foot scaffolding pipe, that's what I used in the same situation.

I would probably use a combination of heat/penetrating fluid/shocking it and using a bigger bar. If it doesn't budge with that then an impact wrench probably won't do it.

 

[montana]

Thanks @Jonz I have ordered a replacement head for my breaker bar and will give it another shot.

 

[Matt e]

Might sound stupid, but are you trying to undo it in the right direction?

Have you tried heating it?

 

[Daniel]

It's a Honda, it's rusting itself to death.

Cut it if I was you. Clean up the shaft end (!!) and then fit a new nut with plenty of copper grease.

 

[Andy93]

Split the nut

 

[ilovewilly]

If you haven't already - With the wheel on and the car down on the ground, get someone to jump in and put their foot on the brake so you've got less flex.