Time to start a build thread I suppose...

[Oscar]

I've already utilised much brute force (I find a length of wood helps, soft surface and leverage) to get them the right sizes, Im just finding the polybushes a "very" tight fit in the mounts.

[PorkChop]

Are the bushes bulging at all when they're fitted?

[Oscar]

Not sure where I'd see a bulge...

They fit into the 'bones ok, but they're wider than the crush tube. Checked the tubes, they're all 44mm as spec. Are the polybushes, tubes etc all supposed to be flush before instalation?

I did notice a minor chamfer where the brim of the "top hat" becomes the narrower tube and I believe this is stopping the poly-parts from pushing all the way.

Ideas?

[alga]

My polybushes were all nearly flush with the crush tube. I suspect PU rubbing into suspension brackets was the source of some creaking. The creaking is not a big deal at all when going fast, but it's pretty embarassing when you're posing & going slow. I plan to shorten all bush tubes a fraction of a mm so PU is not rubbing with the brackets.

[Oscar]

Thats the approach I've gone for; slightly shortening the tubes to allow the poly to sit flush with the crush tube.
It'll still be a tight fit, but will actually go together.

[wylliezx9r]

The crush tubes should be about 1mm wider than the bushes either side. This is crucial as otherwise the bush will be clamped rather than the tube, this will stress the nrbrackets and not allow the wishbones to move freely. The bush should be free to rotate around the tube. I had the same problem when I built my car, I took a belt sander to the bushes to remove the desired amount of material. Bit of a pain in the ass job but a must.

HTH Dan

[PorkChop]

There have been a few instances over with the MX5s where some PU bushes have bound on the wishbone tube, giving a very springy ride. This has led to complete failure of the wishbone in some cases. Some of the bushes shown had an obvious bulge to them, hence the question