E30 Zone

hi i put a 15" bbs rim on the back of m cab and it started knocking i drove it for abit then it went away. the next morning i drove it again and it started happening then stopped again!! what would this be??

cheers

jon

Loose wheel bolt.

If there were aftermarket wheels on your car before you fitted the BBS, is it possible the wheel bolts are longer than standard?

it had alpinas on there they are tight i put one on the back a while back because i had a blow out and that never rattles but it goes away after abit :S

Sounds like an experience I had and what Brian is referring to above.

I suspect your wheel bolts are longer than needed and were OK on the other alloys, but the BBS perhaps are not as deep in the centre hub of the wheel, so the bolts are poking through the hub further and catching the handbrake shoes.

When you drive the car away next time and the noise starts, pull the handbrake on a click and see if the noise goes.

This would confirm my theory. But DO NOT then use that as a fix. You need to grind a couple of mm off the bolts at the most and then re-fit and see what happens. If you don't fix it then the studs will just chew the handbrake shoes & springs to bits.

spigot rings still on?

i had this,if it's from the rear you need collar/washers on the wheel bolts i only needed them on the locking ones.they catch on the h/brake shoes i think?

ill get some washer tomorrow and try it

Wouldn't a set of normal length wheel bolts be a better option?

i had an experience of this. just use 5mm spacers if the bolts are slightly too long

yeh ok i tryed the handbrake trick and it worked!!! im going to get the wheel balanced to see it its that if not either new bolts or spacers my cars really low so spacers might be a bad idea :S not sure till i try it though . cheers!

it's not the wheel

what is it then?

Its the wheel bolts- they are too long - not original, go to the scrappy/ or dealers and get some originals.


Also, you mention only 1 bbs being fitted, if you have odd size wheels on the back you will ruin the diff. If you have LSD then its dead.

If you have a locking wheel nut fitted on each wheel on the back, the odds are the length of the trread on the locking nut is longer than the other 3 bolts. So this pokes through into the drum where the handbrake shoes are and it is clipping the edge of the shoes.

You either need to fit a washer or file a couple of mm off the end of the thread on the locking nut so it doesn't catch the shoes. By pulling on the handbrake a notch it moves the shoes out the way slightly, but this is just a bodge and you'll wear out the shoes with the handbrake being on slightly, not to mention the annoyance of the light being on the dashboard when you are driving

E30BeemerLad wrote:If you have a locking wheel nut fitted on each wheel on the back, the odds are the length of the trread on the locking nut is longer than the other 3 bolts. So this pokes through into the drum where the handbrake shoes are and it is clipping the edge of the shoes.

You either need to fit a washer or file a couple of mm off the end of the thread on the locking nut so it doesn't catch the shoes. By pulling on the handbrake a notch it moves the shoes out the way slightly, but this is just a bodge and you'll wear out the shoes with the handbrake being on slightly, not to mention the annoyance of the light being on the dashboard when you are driving

this is your problem,well put again lee

it is i took the bolts off(in the light this time!) and it was the problem i had spare bolts off an old corsa which were shorter and the same thread and fits like a glove cheers guys for all your help