Sheared bolts

MickieH

Torque Junkie
Points
27
Location
UK, Nuneaton
Car
Probe 2.5L 24v V6
What is the best way of dealing with a sheared bolt?

The bolt in question is one of the top radiator mounting bolts. :confused:

Cheers. :D
 

obi_waynne

Administrator
Staff member
Moderator
Points
1,157
Location
Deal, Kent UK
Car
A3 1.4 TFSI 150 COD
Cut a slit in it and use a heavy duty screwdriver. I'm guessing the bold has probably siezed on anyway, have you used any penetrating oil spray to loosen it up?

You might just have to drill out the bold head and use pliers to pull out the thread. Pliers might work on the bolt itself if you can get a good purchase.

Other options include welding on a new nut to the bolt and using this to gain leverage.
 

stamford

Pro Tuner
Points
392
Location
Hampshire
Car
MG ZS200
I usually find drilling it out and retapping it the best course of action. If it has sheared then there is little use in trying to remove it as it has rusted in to start with. I have tried other methods even welding a stud etc and that has sheared too. No substitute for drilling and tapping in my opinion then using coppaslip when re-assembling.
 

MickieH

Torque Junkie
Points
27
Location
UK, Nuneaton
Car
Probe 2.5L 24v V6
Think I'm going to have to drill it, and retap then by the looks of it.

The worst of it is, both of them did the same thing, but then I guess they'd never been taken out before.

Thanks for the advice ;)
 

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