Wheel Bolt Sheered Off - What do i need?

[Andy JB]

Despite using a torque wrench to tighten wheel bolts as normal, one of the rear bolts has sheered off when replacing at 86nm!

Does this mean a complete new hub assembly or can the bolt be replaced? Anyone know part nos & what ford they are off?

[bubblebobble]

hi JB,

usually when a bolt shears it will shear directly above the thread, it is very very rare for a bolt to shear inside the thread.
You may find that on removal of the wheel what is left of the wheel nut will easily unscrew.
You can buy extractors that work in opposite rotations to the bolt.
http://www.machinemart.co.uk/shop/product/details/...
you will not need a new hub mate, not to worry its an easy fix.

good luck

[sonnylad]

There shown here on racing green's site, not sure how easy they would be to change, but must be worth a go for the cost.

http://www.thetvrshop.com/TVR/Parts_details/TVR%20...

[Andy JB]

Thanks for info - its a clear fracture, the remianing thread sitting flush with the alloy wheel bolt hole rim & not recessed into the hub or such nasties.

Having not previously had cause to mess with hubs previously, would this be an easy DIY or would the large hub nut require removal to refit nut ?

[tvrolet]

I guess you mean thw wheel stud? Not sure about your car, but typically these are just a press-fit from the back of the hub and held in place with splines. You should be able to see/feel the 'button' heads behind the hub. Just hit it hard with a heavy hammer and it should knock through. On all the cars I've played with there will be a position the hub can be rotated to where you can get the old stud out without taking the hib off, and put the new stud in. You don't need to press the new stud in - as you tighten the wheel nut it will pull the stud into the hub.