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PaulD

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  1. I wasn't suggesting drilling it out, why not try one in the rounded off allen key hole? It would be reasonably big, so may work if you are gentle.
  2. Have you tried a stud extractor (the lh thread tap thingies) in the hex? When you replace them, only fit Unbrakos (also marked S.P.S). The quality is so much better than the trash that you will find in a d.i.y. supermarket.
  3. I think that it should be possible. You would need to drill out and counterbore on the new PCD and then turn up some bushes with the new conical seats. Many years ago I did this to some magnesium Minilites (but I think that the change in PCD was less). Unless you have access to a mill and a lathe, I can't see that it would be cost effective. Paul
  4. As an after thought - I think that nickel plating a steel roll bar would be allowed. Paul
  5. You will find the spec in FIA Appendix J, Article 253, Section 8.3. The material spec is So although there are stainless steels that would easily meet the spec, they wouldn't be allowed because they have too high a component of other elements. E.g. 316L has only 65% of Fe. You could use stainless steel (or aluminium, or titanium, or induction hardened treacle) if you were prepared to homolgate the structure yourself, according to tests laid out in the regs. Paul Edited by - PaulD on 13 Feb 2006 21:10:56
  6. Anyone know of any anywhere? Paul
  7. Take care with the timing of the holes. Before drilling anything, check that the cap is properly aligned and that the two holes in the original filler neck align properly with the holes in the black ali bit. Paul
  8. Does anyone know what the Radial rquivalent of a 7.5"R16 would be? Converting inces to mm gives 190/85x16 but I can't find any tyres that size. Paul
  9. The extinguisher should have a "service by" date on it. It will be a back to manufacturer job - they will probably replace the gas cartridge, seals and extinguishant. Most modern extinguishers are filled with AFFF which is basicaly soapy water so no worry about it settling. Paul Edited by - PaulD on 28 Oct 2005 23:27:19 Edited by - PaulD on 28 Oct 2005 23:29:19
  10. I suspect that it wouldn’t make any noticeable difference. You may have problems persuading a scrutineer of this. I wouldn’t weld anything to it. The lowest impact would be to bond a bracket on. Paul
  11. How on earth do you get that much parsley to germinate? Presumably not with kettles of boiling water! Paul
  12. Stay away guys! Working in an industry where somebody asks - at least - once a year; can we use Ti fasteners, the answer is NO! Ti has about 60% the density of steel, but it also has about 60% of the strength, so there are no gains to be made there - you need a bigger Ti fastener to replace a steel one and on the whole you lose out because you need to make everything else bigger to take the bigger fastener. Even worse, Ti - like aluminium, but unlike steel - does not have a fatigue limit. With steel there is a stress - about 0.5 Fty - below which the fatigue life is infinite. With Ti, the S-n curve is asymptotic to zero stress i.e. any Ti component, however lightly stressed may experience fatigue failure. Generally, there are no Ti fasteners on F1 cars. Don't put them on road cars! MP35N Cobalt is another story! Paul
  13. You could try getting in touch with these guys here. How much does the standard prop shaft weigh? Half shafts too? Paul
  14. Over here, you don't need to display the tax, but you do need to displat insurance and MOT, same in France. Much more sensible. Paul
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