7 replies to this topic

[SurreySprite]

Hi all,

I need to replace the lower steering column bush on my '94 Sprite. I have been following the instructions in Mini World which was handy!

Before i attempt it i have one question. In the article it mentions that the lower dash rail bolt might be a shear bolt and if so this needs replacing. From the picture below can anyone tell me if this is a shear bolt?

I presume i need a socket to remove this? Many Thanks for your help.

[CLASSIC-MINI-BITS]

hi yes it will be a sheer bolt, the easiest way to remove it is to either:

1... use a junior hack saw to cut into the bolt to make a slot deep enough to allow a decent screw driver into it

2... or decent molegrips on the threaded bar end to turn the bolt a couple of times, that way you have moved the head of the bolt away enough to be able to grip the thing with the molegrips, the thread will be a little damaged due to the grips, but you will get enough force on the head to to turn it back out.

[L400RAS]

Hi James,

Yes, that is a shear bolt. What happens in the factory is, they do the bolt up, and when tight, the standard hex head shears off the bolt shank, thus making it anti-tamper etc. I have heard of people hack-sawing a cut down the thread and then undoing it with a screwdriver, however i think i just hit mine with a chizel to "knock" it round slowly - its been a long time since ive done one.

Once out, the bolt is useless, and should be replaced with a standard bolt (+nut & washer etc).

Ryan.

[SurreySprite]

Great thank you both for the information and i now know what a shear bolt is

[Ethel]

You can get replacement shear bolts if you'd prefer a bit of security. The nut of the one in your piccy ihas a slot that mates with the bracket (you'll be there all day trying to turn it) so attack the bolt head.

[Pooky]

How do shear bolts help security? 'scuse my ignorance!

[Mini_Woo]

i got annoyed with mine, so got angle grinder out and took one end of then hammerd it out with screw driver and hammer!
wouldnt recommed that way though

[Dan]

How do shear bolts help security? 'scuse my ignorance!

It's part of the rules and regulations for the steering lock. If the steering lock could be easily removed then a thief could still steer the car, the same would apply if the column clamp were removed even with the steering lock left in place. The fact that the steering lock is fairly easy to break is overlooked by the rules.