Quote:
Originally Posted by Rob Gibbons
I started a thread about this brake issue on the 'general' line and Graeme was kind enough to direct me here. I had decided to strip the wheel out and get the disc bolt faces machined and 'trued up' in a lathe, but finding a lathe with that depth of bed is proving a bit difficult. So yesterday I measured the disc/s run out and shimmed them out to run true. The LH disc had a maximum 'out of .3mm and the right .25mm (12 and 10 thou for us oldies!). The run-out increased from .05mm (2 thou) through .15 to the max over the 5 bolts. When I had completed the shimming the max run-out on either disc was .05/2 thou. This has to be way inside OE manufacturing tolerances.
On roadtest - NO change! The vibration is slightly reduced but at very low speed the brakes feel as if they are releasing and the re-braking even with constant lever pressure. So today I am going to check the brake calipers to make sure that they are completely parallel to the discs and I may make up a brake lines directly to to both calipers, rather than the 'bridging' lines. I'll let you know how it goes.
All the best
Rob (ESSEX)
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Rob, it sounds like you have the faulty disks so the re-routing of brake lines should not make any difference. I'll be interested top know about caliper alignment though so please tell.
Jon
